They told me heating my pool with a PC was stupid - Whole Server Room Pool Watercooling Part 1

Check out the NZXT H7 at series at: nzxt.co/LinusH7
The computers in my house generate a ton of heat, but why spend money to get rid of it, when you can USE it... in the pool.
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CHAPTERS
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0:00 Intro

[@Boroda4Gaming]

Just 6 years and we got from a "Whole room water cooling" to a "Whole house water heating"

[@ronniemullinsjr.2247]

Inb4 whole neighborhood water heating

[@ZeroUm_]

3 years later: Full LMG Labs buildings heat transfer project.

[@localareakobold9108]

Local Protogen loves the idea

[@DavidRockin1]

In 10 years: Whole planet water cooling (F's for climate change 😭)

[@Forlong21]

Our custom 10000 gallon water cooling solution

[@Lil_Puppy]

If Linus moves, he's going to have to leave a 400 page manual just to use the house.

[@SStarlight9614]

think of all the setup the new owners would have to do! 😳

[@m7md95]

@@SStarlight9614 light switches alone 🤪

[@Cyba_IT]

Lol! Great work MJ, funniest comment so far man. :)

[@amdkillaplays]

@@SStarlight9614 I would imagine Linus would leave the Home Assistant related stuff in the house if they were to move out. It would be a pain to reset and reconfigure the devices for the next house, and leaving a fulling functional system installed is a massive value add for the sale price

[@conorstewart2214]

@@amdkillaplays If it was a full system all installed by a single company with an easy to use user guide for the whole house then maybe it would add to the sale price, if its a custom job with lots of different brands, set up on something like home assistant I dont think it would add any value, especially becuase the new owners might not care much for iot stuff and if it has all been set up by linus, it might be quite difficult for someone not so tech savvy to make a change or learn how to use it. Also by the time linus sells the house most of the stuff will probably be outdated.

[@ABZer0x_x]

Jay's 2 cents: "I'm the king of water cooling" Linus: "hold my LTT store water bottle"

[@Duncan_Campbell]

You forgot to plug lTTstore.com

[@-MrDontCare-]

😂 lol

[@ABZer0x_x]

@@Duncan_Campbell and the "Segway to our sponsor"

[@svgPhoenix]

@@ABZer0x_x segue

[@otumar]

😂

[@SilverCymbal]

Best part is missing: The plumbers face when the IT guys tell them their idea

[@engrdan7]

As an HVAC engineer and an energy engineer, this is one of the best videos I've seen in awhile. Great application of a heat exchanger. Large data centers use this tech for exchanging heat via a "water-side economizer" (i.e. running the evaporative cooling tower via the condensing water loop) when the chillers are off and the outside air temperature (usually controlled via a wet bulb temp enable setpoint) is favorable. Good stuff.

[@jonathaneriksson9273]

Why did you need to tell us your an engineer. I swear every engineer starts their sentence with something like, "As an ".." engineer.." its really making you all look like the vegans of workers.

[@Tantive]

@@jonathaneriksson9273 Why would you object to a person that has this kind of project as a point of interest?

[@danedwards_ee]

@Jonathan As an electrical engineer, you gotta flex that degree. /s

[@aaff2999]

@@jonathaneriksson9273 because they do this kind of stuff for a living so it's valuable for us to know where their perspective is coming from?

[@ZE0XE0]

@@jonathaneriksson9273 bad take

[@acathosh]

Linus is just using the channel at this point to get the manpower to build his dream house and file it as a business expense while making the sponsors pay the labor-costs. That's the real galaxy brain move here xD

[@exaltedcarnage]

yes moment

[@minimaniac50]

And I'm loving every bit of it

[@javahne4007]

Absolutely, and good luck to him

[@naufalap]

and bait commenters to give them info about proper and better ways to do it

[@dubhd4r4]

Dude is living the dream

[@gabrielforsberg8744]

Being a contractor for Linus must be a surreal experience. I can see the morning meetings in front of my very own eyes "you know he's fucking crazy right, well, boss says he pays well so he gets to do whatever he wants"

[@weakamna]

I think for the right kind of contractor this is a dream job as well. Having someone with the open mind _and_ money to do crazy shit like this would be amazing for some

[@diablalexfull]

pretty sure the plumber must be like ''Cool this is dope and different'' instead of plumbing an other bathroom for the 100th time this year

[@lithepanther]

@@diablalexfull My family works in electrical. No one is interesting in doing something dope and different because that means things go wrong which eats up time and money and causes stress.

[@RT-gaming]

@@lithepanther as someone who works in building automation, you couldnt be more wrong. Literally what our job is, making processes work together.

[@TrIs1493]

Not for the painters though, just imagine the complaints they had to endure from Linus & Yvonne xD

[@pollorojo]

Imagine being the person coming in to buy this house in 20 years when Linus moves and having to wrap your head around all of this insanity.

[@The93Vector]

Especially since he’s definitely taking all of the computers and servers with him. “Why do I have a heat exchanger loop that goes from the swimming pool to the empty basement!?”

[@stoneboy42]

Easy enough to tie in the loops to the boiler and use that as a source to heat the pool.

[@xuaalbito8303]

thsts why he needs an operator manual to leave behind lol

[@hoo8072]

Then they'll have to watch the whole playlist of LTT home improvement to understand what to do with the house. Stonks.

[@willlacasse9358]

@@The93Vector could be a weed farm lol

[@ThevenimX]

I love that Linus is just turning literally everything in his house into a business expense.

[@OMGVelorium]

It's hard to even be mad about it at this point because it's so insane that as a viewer, you can't help but want to watch it no matter whether it succeeds or fails. AND, nobody else is insane enough to try it!

[@MrSongib]

I think It's the opposite Sir.

[@danielliang1644]

I think it would be problematic if they are public company.

[@workoholekhh7542]

@@MrSongib I agree

[@workoholekhh7542]

@@OMGVelorium When you make money from videos, You do the same. This stupid videos just make money for him

[@BBROPHOTO]

Yvonne - ‘Linus, the pool isn’t warm enough!’ Linus - ‘Okay! Let me run some benchmarks real quick’

[@naraydaniels7832]

Water starts boiling

[@gthakur17]

Just open couple of chrome tabs

[@aimwell8813]

@silviaa🔥⤵️ sus imposter

[@Nekomancer1983]

@@TalesOfWar Or an AMD FX 8370.

[@gmdking]

@@Nekomancer1983 bro we don’t want the pool to evaporate and everything else melt

[@AlasdairGR]

You know what’s kind of amazing about this series? Whenever in the future that this house has new owners, if they need to do any repairs or upgrades to its infrastructure or design, they’ll have an entire series of videos that meticulously lays out all the details they’ll need to know. It would also be kind of amazing to give the new owners a flash drive of all the videos, plans, layouts, and other info that the owners and any contractor would need to make changes.

[@mtb8300]

This will actually make it much more difficult to sell the house in the future. If there's one thing home buyers hate its a bunch of DIY modifications that they have to learn because no company exists that will service them for a reasonable price. Don't get me wrong, I love what he's doing, but he will never get the cost of these upgrades back when he sells the place.

[@zeeeeekkk]

@@mtb8300 yet he will get most of the cost back from these videos

[@riffraff302]

@@mtb8300 agreed. I love what Linus is doing to his house with all the tech upgrades. But man, the overall complexities and huge learning curve to just comprehend all the tech upgrades is gonna cause the buyer to second-guess. If a 10 year old home is on the market, many buyers will prefer ease-of-use, repairability, and simplicity to cut down overall home maintenance costs.

[@thewhitefalcon8539]

LTT viewers would totally buy a house full of random properly documented gadgets

[@JuanRodriguezNushio]

But they'll only learn the info after a message from our sponsors!

[@ccarmelo1979]

I was a little concerned about the mixed reviews, but I used it last year and hooked it up again this year and it was great kzbin.infoUgkx-izdrK3eF-HMvjzeBOxToD6Fx-4ulJUh . I couldn't get my 10' Intex pool above 76 degrees the year prior and last year I got it to 90 and had to put ice in it. This worked so well! I have just 1 mat hooked up to a 1,000 GPH Intex pump and it makes a significant reduction in the flow rate coming back into the pool, but that is to be expected with how far the water has to travel through the mat.

[@alek2341]

As an engineer, the issue isn't coming up with ideas, it's about making them simple enough that maintenance isn't a pain. If something fails during Canada's cold winter... well, we're going to get a good video!

[@natecowie1104]

At least it’s Vancouver. It doesn’t get nearly as cold there.

[@russellullyatt1153]

Not dissimilar to an outdoor furnace which uses glycol in very very cold environments. I’m sure it will be fine. May involve some extra maintenance and that’s it.

[@shippy1001]

This exact words came to mind, man if one of those pumps/valves/seals/sensors goes bad is gonna be a pain to troubleshoot and fix the problem in any reasonable amount of time, also spare parts, he probably need at least 1 of each of those components for spares. There`s also something called diminishing returns, the Solar Panels alone already add so much more complexity, I imagined that this will last for maybe a year, until it breaks once and Linus do a workaround to get it working and will stay that way forever.

[@Ryan-re1rs]

Yeah it's turn the valve off and abandon the project. Lol.

[@kemerogh]

and that video will pay for the repair, it's a good loop

[@Ashkan10Messi]

Linus is only limited by Jake's knowledge these days, nothing else is holding him back from doing whatever the hell he wants with his house xD

[@ArturoTabera]

At this point I predict Linus will eventually save the Planet single handedly. You read it here first.

[@brokeandtired]

Careful...another rack on the loop and he will have a hot tub time machine.

[@Neoxon619]

At this point, it’s just as much Jake’s house as it is Linus & Yvonne’s.

[@retrogamestudios7649]

Jake is the knowledge. It's transmutated thru his fingers into the teleprompter to penis....I mean linus

[@YogeshThangam]

Nope, not even by Jake's knowledge. Just the people who'll pick up Jake's call when he's asking for help. Their knowledge is what limits him now. Lol.

[@shangerdanger]

Energy companies hate this guy! One really difficult and complicated trick to make your hot things cool and cool things hot

[@KaizenHydraxis]

Energy companies won't hate this. Steady income from the electric pumps that will constantly be cycling the fluid through the system on top of the energy from the pool heater (that he's still going to need.) :P

[@shangerdanger]

@@KaizenHydraxis It's just a meme bro. I'm sure linus would need a full solar farm to power his high tech house

[@alenngk]

​@@KaizenHydraxis ​man its closed pressured system, that pump will drain like old light bulb

[@XTRLFX]

@@WhiteG60 At night? And is he making the CNG for his heater on it's own? He is an engergy slave as most others too. Never understood the gas heater in the first place in that house. There should have been a heat pump. That would make the climate unit not needed and in the winter would produce a lot of cooling to chill the computers. This system he is building is getting more complex the more gets added to it. Making it nightmare to maintain at a certain point.

[@justbob333]

I'm pissed that he's not done anything about automated blinds, perhaps the most energy saving feature a house can have.

[@bluethumbdiy4735]

Linus has transformed LTT into the perfect lifestyle company. "Honey, this house is way too big and expensive but I've got a great idea. LTT will pay to remodel our house! That's the upside. The downside...Jake and some of the other guys are squatting here for a while. OK, they might not leave". Finding legal ways to use company funds to buy stuff for your home and/or personal use is like a license to print money. Well done Linus, well done.

[@fitybux4664]

"Our entire house is now one huge business expense because we need it to allow coworkers to squat in for one day. 😀"

[@LifeOutsideTheBubble]

I think to deduct it has to not be used for personal use. Like a table you also eat dinner at you couldn’t deduct. Not sure though

[@garethbaus5471]

​@@LifeOutsideTheBubbleIt is definitely a bit risky, but stuff like this is common enough that the IRS literally doesn't have enough funding to go after most of the people who deduct things that are also used for non-business activities.

[@RaghavV-rk2zn]

Found the accountant!

[@NaviUpgrade]

Linus is literally finding every way possible to write off things in his house and I'm living for it 😂😂😂

[@n0mad385]

omg I just realized that haha. Next thing we know he finna write things off for his employees and such

[@codemonkeys3914]

Write the kids off as a business expense saying you're training the next generation of LTT hosts

[@bkuker]

Yeah, they should do a video on the accounting behind the scenes here.

[@Dave102693]

Facts

[@travisschneider3011]

@@codemonkeys3914 it is common for business owners to hire their kids for a tax write off.

[@cookinwithjake]

Linus, I just want to thank you. I showed my wife this video and she thinks that my home improvement ideas are way less crazy now. You are a true hero and have saved my marriage.

[@corsairsofnarshaddaa]

Second one from Linus for me _this_ _week!_

[@billytringuyen1]

lol ouch!

[@NobodyisAnybody]

999 likes, now it’s 1k likes

[@ncc74656m]

Now that it's been 3 months, how's the divorce going? 😁

[@rolux4853]

I really don’t know what type of women you guys marry, but if she didn’t support me with my ideas that I really burn for I wouldn’t have married her and vice versa! I support my wife’s ideas just the same. Matter of fact, she had watercooling and an RTX card before I had any of those things. Also she has two old inline 6 BMWs which I really love! Her hobby’s are also her horses which I totally support and help her in the stable and we go out riding trails all the time, she on her horse, me on my mountainbike (oh she also bought a specialized after realizing how much fun Bombing trails on two wheels is besides the usual 4 hooves). I couldn’t be happier with my with and I never have picked one that I have to beg for realizing my ideas. I’d rather stay single than being enslaved.

[@Jutilaje]

Every time I see it, I have to say something about it: Your radiant heat contractor really did an incredible job on that panel. Don't wanna even think about what they charged, but the thing is gorgeous.

[@Fanta....]

And it gives the company massive publicity everytime someone asks linus who built it. winning all round.

[@janhavel8208]

Yeah, that thing is a joy to look at.

[@woebud]

that makes me happy to hear as i'm a mechanic plumber who has used the exact same boiler, press system, manifolds, etc.. it literally looks like a job i'd have done, aside from a few things i'd consider questionable on a new construction house!

[@tobias1991o]

@@woebud It's not new.

[@shadowtheimpure]

@@woebud It's a retrofit, so a few 'liberties' have to be taken to make it work.

[@mrgw98]

Not sure if you plan to do this, but if you are already planning on cooling the solar panels, you might want to look at heating them during the winter as well with the server rack. This way when it snows, the heat from the cooling loop can melt the snow off the solar panels and continue to give some power.

[@andrewcpu]

@Linus this is big brain

[@CreatedTech]

From doing unboxings in a dark NCIX office to heating a pool with the thermal power of several rack-mounted gaming PCs... Linus has come a long way.

[@dannihijacked2508]

definitely

[@DX88]

Also have you seen the size of that pool? Jeeeez

[@DX88]

It's like a tournament size pool almost.

[@satakrionkryptomortis]

and sponsors paid for it all

[@_reZ]

@@DX88 bruh do you not know how to edit comments/replies

[@t00schw1fty9]

Never thought about building my whole house as a tax write off for a KZbin channel. Well played sir, well played.

[@eze2k]

youre so lucky you won

[@Phil8sheo]

God please do not fall for that spam pretending to work for LTT.

[@JohnPaulBuce]

who are you?

[@gcmanuel85x]

Linus Leech Tips

[@midamsrivastava234]

Im happy to see Jake and His Husband building their new home. It's wholesome 😊 Edit: Holy shit, MOM IM FAMOUS!!

[@Flipcrash]

Jake is putting alot of effort into this house and he dosent get to live in it. There better be side house that Jake's been working on

[@ArturoTabera]

Jake is Linus' sohn. That's a fact.

[@Neoxon619]

@@Flipcrash Seriously talking, I’m pretty sure Jake has been well compensated for his work. For one, he got an entire driving simulator set-up at the office.

[@emanggitulah4319]

Still missing the the adult in the room, but I am digging it

[@rodrigof.5956]

Jake is getting Linus's trust so he can build his secret basement under the house

[@dcshotcrete]

Thx for the shout out my bro , technically having underfloor heating incased within a shotcrete pool shell may work , the geographic area , shotcrete mix , reactive soil composition and ground movement all plays a part in the decision process.

[@UnabashedOops]

Won’t a lot of the heat go into the ground instead of the pool?

[@dcshotcrete]

@@UnabashedOops If the plumbing has been installed correctly the return pipe x 2 ( midway and deep in the pool will run through the heating coils heating the water. Leaving the heat coils under the concrete will heat the concrete but not the water as effectively thus requiring a disproportionate draw on electrical power to achieve the desired heat. Volume of water ( A ) Water Flow ( B ) Heat condenser power ( C ) Time to correct temp ( D ) = Happy days. Etc etc.

[@jsh3288]

Linus really decided to use a nuclear cooling solution for his server rack.

[@granthuffmanreal]

I like this one

[@Earthenfist]

I was about to say... Like, yeah. Very much a nuclear heat exchange system. Just needs a big concrete evaporation tower now.

[@resurgentgravy]

heat makes water boil makes turbine go brrr

[@JehuMcSpooran]

Linus needs a nuclear reactor just to power his server rack.

[@dmyt58]

Well any power generation based on combustion also works like this. Coal, oil, etc

[@domidoggames]

The heat exchangers also work with air conditioning, you can shut the fan on the condenser off and pump the hot refrigerant to the heat exchanger, heating the pool and making the air conditioning more efficient. You know, just in case you want to add more heating elements to your pool.

[@billkear6674]

Buy a system from the crypto miners. I think they will be selling off a few heat exchangers cheap.

[@kevin28115]

boil the pool during summer.

[@ianoconnor1515]

from what i understand the gas in the ac condenser is about 60C so you could put a chiller in your PC loop and the ac condenser into your hot water service (tank).

[@Ultrajamz]

Lol wonder if his cost savings go out the window from refilling pool due to rapidly evaporating water

[@Bootchair]

@@ianoconnor1515 not quite. For 410a/HFC On a really hot day you will see anywhere between 380-400 PSI on the liquid line. Around 40 - 44°C. In the condenser coil the refrigerant is going from a saturated vapor to a liquid under force. There’s a product out there to heat pools/water. They are called heat pumps. Just like a normal AC but have a series of reversing valves so the condenser coil can act as the evaporator.

[@rainbowananas5040]

Remember to take account temp gradient of around 10C over fluids and please use a industrial grade pump and maybe double it with auto switching. Install pump after servers for minimum operation pressure for server cooling loop. I do heat recovery systems for work.

[@kagato82]

@Mingyao Liu Don't let Linus see this comment. He'll get "ideas"

[@lopany]

This guy pumps

[@shershahdrimighdelih]

++++

[@axelBr1]

I wonder what pool water temperature they are expecting, and what server room temperature he wants. Keeping the server room at 20C or so in the summer is going to be a struggle I think, the radiator won't be able to dump much heat once the air temperature is above 15C.

[@gourdtube]

So there isn't a part 2 to this 6 months later? I wonder if that means it's going real well.

[@gorto1127]

Guess what, they are still building the pool! At 01:30 kzbin.info/www/bejne/jHXWl4Jol5uSfsU

[@noaether]

@@gorto1127 first time I see an accurate KZbin link in the comments of a video

[@balecalduin1993]

@@noaether Finally, the link that you have been waiting for! (Sorry, that was too tempting)

[@nusermane1076]

It’s becoming such an overengineered house…and I love it 😅 Linus, remember the 1st LTT house and the whole room water cooling: Don’t forget to put filters into your return pipes, as soon as they enter the house, and also before each servers cold water feed, to avoid clogging all cooling blocks again 😄

[@FishFind3000]

Just wait till shit starts to break. This house will be a nightmare.

[@stsam63]

I hope they dont make the mistake of mixing aluminum and copper again, that is what mainly caused it last time, also no anti-bacterial in the water

[@davidmcguire6043]

@@FishFind3000 not really the only thing that could break in this setup that would be very difficult to fix would be the pipes in the walls in the floor of the pool and it is incredibly incredibly unlikely they would have a failure there in which case you just you know stop using those lines. And the other stuff can all be fixed I mean it was put in by Tradesmen and hobbyists.

[@Kniffel101]

Is it actually overengineered? I feel like this is a logical solution that just takes a "little bit" of money and ingenuity to work out.

[@grqfes]

@@Kniffel101 most likely considering he's multiple heat sources and loops in place and they almost all need to communicate to eachother just to heat his damn pool. but its badass

[@twizz420]

Every year for the past like 6 or 7 years you guys have done something absolutely crazy like this. Something unthinkable and ingenious. And I always think "there is no where to go from here" *...and then you go there...* So keep it up, guys. I hope you guys never stop making videos.

[@ViewerEm]

that's so nice of you, Bong Jovi

[@stal5861]

Agree. Let's just hope they stop making videos with uninformative headlines.

[@TheRabidDeer]

"What if we water cool the planet?"

[@xorkatoss]

the next thing you know, next year he WATERCOOLS THE WHOLE CANADA!!

[@freelancespartan]

For those curious, fluid heat exchangers are how nuclear reactors can make ridiculously hot water and steam without putting radiation into the steam used to spin the power generators. The radioactive coolant stays in tubes and they shove them into big boiler tanks to boil that water to steam. Source: been a nuclear systems mechanic for 6 years

[@memethief4113]

be careful, soon Linus may ask you to build a reactor under his house

[@scottstevens8756]

thats funny, because as soon as he mentioned the problems of chlorine and gunk my first thought was - hey whatabout a loop like nuclear reactors use? Source: nerd

[@TravisFabel]

"Yeah but why be safe like that when You can pump radioactive water around for the hell of it?" -Russian engineers

[@justbob333]

also reminds me of old timy machine guns.

[@numus19]

Dammit I just posted before reading this comment. It is basically the primary and secondary system. Hell a good number of them use canals and large bodies of water as the heat sink.

[@emfournet]

As a former district heating/cooling engineer, this makes me smile, even if it's not "perfect". Cool project!

[@notinterested8452]

That's why they fired you because they're corrupt want all the money in pocket and everyone dependant and miserable. LOL 🤣😆 jk

[@K0ALA.]

I love how a tech tips channel has turned into Home Improvements. I need more!!!

[@tomstdenis]

His changes will hurt re-sale big time. Nobody else will want to deal with this crap. Which is fine because IIRC he said he doesn't plan to move again.

[@David_Quinn_Photography]

I need more but my wallet is saying no.

[@Dadmiras]

Normally i would install that as a snow melt system for drive ways and side walks but the the pool heat idea is fantastic use

[@Dadmiras]

With the correct 3 way control valve you could change routing on the fly automatically to side walks and drive way in the winter

[@justbob333]

every person(2) that I've talked to that have that sort of system never use it due to cost.

[@ModrunOfficial]

@@justbob333 the reason why they dont use it is cos it costs them electricity to heat up the pavement, this system uses alredy made heat from the server electricity and reroutes it to the pavement effectively for free

[@pin65371]

Look up heat pump water heaters. They have heat pumps on top of hot water tanks now that very efficiently take heat from a room and use it to heat the water. His hot water heating bill would be next to nothing. I've seen some cases where people were spending like $100 a year to provide all their hot water heating needs.

[@s.i.m.c.a]

best cheap snow melting system called "shovel", just couple of hours and you body heat would melt everything around .... with help of shovel....or ice breaker and salt with sand

[@Ahnestly]

I am SUPER CURIOUS to know if Linus is able to just write off his house as a business expense at this point.

[@michaelkrelwitz6203]

Seems like the idea lol

[@JC-XL]

By making hundreds of videos about it - he'll claim the whole house is just video decor ...

[@ImmaSpam__________________Can]

@@Kiiiyoshiii if there is a will there is a way and Linus will find the way

[@adminanonymous1521]

@@Kiiiyoshiii I'm not saying you're wrong and I do not know your location, but we should remember that US law and Canada law can differ.

[@Ahnestly]

@@Kiiiyoshiii since I review products myself, I believe every item I review IS my work, and therefore deductible. I do live in the USA though so could be different. I did read that vehicles are an exception - you aren’t able to write off an entire vehicle but you can write off some. I believe this is why you see so many KZbinrs reviewing their teslas. I’m sure they also use it for work, enabling them to write off much more. Super curious to know what the policy would be for houses…

[@Prototype_TB]

As an HVAC technician this video was very fun to watch! Seems like you guys had fun making your own two zone system ;).

[@chasenthehype]

This is incredible. I think maintenance is going to be the the biggest issue over the years - but man, the exchanging and sharing of heating and cooling here is pretty damn awesome.

[@SmartassX1]

That won't be an issue at all. The floor heating systems that they plan on using for it don't need any maintenance for decades and when an electrical part does fail, they can just grab a standard part from some random hardware store.

[@TheGodExperiments]

@@SmartassX1 I think the bigger issue is if one of those hoses ever gets clogged and/or breaks, it's going to be "fun" to either cut through the rebar to get to it, or to push a new sections all the way through.

[@Scolar69]

@@TheGodExperiments if that happens then they just ditch the plan overall

[@Autunite]

@@TheGodExperiments with proper, treated distilled water, they won't clog, and they won't break either. I've got a water heated system in my house from the 80's, and the only thing it has needed is a system upgrade, meaning replacing thermostat, valves and controller to turn it from a standalone "dumb" system to a smart system controlled wirelessly and a new pump. They're surprisingly robust.

[@SmartassX1]

@@TheGodExperiments I suppose that's not completely impossible, but I've never heard of that happening to a floor heating system. What would even clog it? Were that a likely thing to happen, that type of heating systems would not be as commonly used in the world.

[@Mister-Chief]

In todays episode of “Linus has an idea so grandiose and unique that he makes his contractors question their existence”

[@n0mad385]

EXACTLY! The contractors are like "Is this normal? Did I miss something in pop culture? Do I need to go back to school?"

[@kennythekid130]

Jake should be the Chief of Engineering for LTT at this rate. He always does amazing things.

[@meowmeowmeowmeowmism]

Jake from Allstate?

[@3xceIIent]

@@meowmeowmeowmeowmism Jake from State Farm. *edited to fix start to state.. not sure how I did that.

[@SquirrelTheorist]

@@3xceIIent Jake from AllFarm

[@TimUnknown-h5q]

What is Jake's background? Really impressive what they are designing and engineering there. I know they prob get some outside help, but they definitely know their stuff. Chapeau

[@MrHoward888]

@@TimUnknown-h5q He got the idea from someone in discord.

[@pinnacleexpress420]

0:53 WELL DAMN I MEAN WHEN YOU PUT IT LIKE THAT

[@matthewcianci8310]

im glad someone like you is out there doing projects like this.

[@robertvantine2810]

Wait until Yvonne wants a waterbed... Linus: [Excited] "Honey, I have a crazy idea. Just hear me out..." Yvonne: "You want to heat the waterbed using water on a loop from the server room?"

[@flaschiboi7189]

@DON'T CLICK ON PROFILE PHOTO okay, Imma follow your instructions :)

[@timseguine2]

@@flaschiboi7189 KZbin uses engagement as a measure of whether something is spam or not. By responding to bots you make spam filtering more difficult.

[@flaschiboi7189]

@@timseguine2 yea if you wanna see it in that way, you're right. I'm still used to the times where real guys were owners of this sort of accounts.

[@justintimefordinner4902]

@@flaschiboi7189 this guy is actually real

[@timseguine2]

@@justintimefordinner4902 They post way too many comments for it to not be automated in some way. automation=bot

[@JohnnyBoi509]

TLDR: Watch your cooling loop fluid levels carefully and take whatever action needed quickly. Good luck 👍 This is a fantastic idea, I do have concerns because I’ve been a part of pool building and plumbing since I was 5 years old. If in the future you have issues and you start to notice ‘coolant (or whatever fluid you are going to use in this loop)’ loss; cut your losses on whatever is under the pool and do the same concept on whatever the most accessible side of the pool / deck is. I say this because I’ve seen olympic size pools either sink into or lift out of the ground from leaks that put hydraulic forces under the pool, lifting it up (cracking the deck & expanding the rebar) or slowly hollowing out a void under the pool until it sinks bit by bit (sometimes taking the corner of a house with it on the slow journey) I love this idea though, mad props, hope it works for years to come!

[@robvanscheijndel]

This doesn’t give the result expected. I’ve had a small pool (211 ft3) that uses a dedicated 3000 watt heater. During the night it was a able to maintain the temperature and sometimes increase it slightly. With this size of pool, the heat of those few servers will (which is probably far less than 3000 Watt) will not really help. I have also built a solar heater for this pool, that was much more effective.

[@demented9131]

The point of the loop is more to cool the servers not heat the pool. He is also using solar heat and electric if needed.

[@stanislaviliev6305]

"We don't want to loose thermal energy to the environment around us" Linus going above and beyond for a suboptimal heatspreader, so yes they told you right

[@wonderbread4518]

Well on a really hot day you wouldn't want the heat spreader to turn into a heat collector.

[@bobgraton854]

Heating the pool walls is a waste of energy. Use it on the pool floor only it will be a lot more efficient.

[@madman4043]

@@bobgraton854 "waste of energy" implying the runoff heat is being used for literally anything else and not just lost to the air otherwise

[@conduit64]

@@bobgraton854 "waste of energy" they are literally using waste energy as the heat source, it doesn't matter if the efficiency is suboptimal, heating the pool is secondary to cooling the equipment.

[@RENO_K]

😂 it would be dumb to waste 2000w for 5000w cooling But hyper efficient water pumps are a tested technology and they probably could run with 200w

[@Verlisify]

Its crazy how long and how consistently LTT stays on another level

[@localareakobold9108]

OwO?

[@magica3526]

its crazy how long and consistently you are a terrible person

[@wsketchy]

fishing for likes

[@njebs.]

🤖🤖🤖Its crazy how long and how consistently LTT stays on another level🤖🤖🤖

[@IvanSal778]

Didn't you cheat in pokemon???

[@rafaelgarcia1392]

I’m astonished Linus hasn’t scared away any contractors with these ludicrous projects

[@joshuaadams4945]

Contractors see Ludicrous projects and all the money signs that go along with it, in other words, "of course, sure, done something like this before, let me get you quote."

[@nitehawk9270]

Contractors can charge what they want for this work, as most contractors wouldn't touch it :)

[@latexrope1358]

I'm sure they're being well paid, and they will be back to repair it when it doesn't work....

[@nitehawk9270]

@@latexrope1358 Yep, at great expense no doubt. When you sign a contract with what you want is unusual. I'll do it under condition i'm not responsible if said idea does indeed turn out to be stupid. But hey genius and stupid is a fine line. Without people at the frontier we wouldn't have penicillin. Who would think to use mould?

[@fitybux4664]

@@joshuaadams4945 Minor correction: "of course, sure, done something like this before, let me get you quote. also, where do you want the bridge I just sold you installed?" 😀

[@N.N.77]

1.Only if you have put XPS or EPS(with aluminium foil) isolation panels under the pool which would redirect the heat towards the water. The way you did it 30% or more of the heat will go towards the "earth". 2.I recommend making the "snail" piping way instead of the "snake" type that you did. The "snail" type is more effective in this case with two or three circuits with a step of 150mm between pipes. 3.I am not saying that it won't work, but you could have reached max efficiency if you would have called a real HVAC engineer to help you build it, not a plumber. 4.Also, I am pretty amazed how you guys are so fascinated by the whole idea. These kind of systems are all over Europe and the Baltics.

[@yukito8148]

this has to be the biggest brain moment i have ever seen, why buy a hot tub when you can make one while cooling your rig at the same time

[@Dragoncoals]

69

[@batterypwrlow]

Hot Tub Game Machine. I Love It!

[@ArturoTabera]

Someday he finds out that water actually takes a lot of heat. Then he needs more hardware to heat the pool. This leads to more videos. And so on. Genius!

[@Sup_D]

@@ArturoTabera Well, the upcoming generation of Hardware are going to run a lot hotter, so i guess that would be a while.

[@mdocod]

It's actually a very small brain moment. He's going to be using 80-90F pool water to "cool" his server room down to ~100F at best. Without a heat pump in the loop the plan useless.

[@krisbrightspirals]

I'm confident this will go as well as the whole room water cooling project from years back

[@Zertehq]

flashbacks will be flowing for linus

[@paddington1670]

it worked well for the guy who first did outdoor heat sinks for indoor water cooling on his PC like 17 years ago on Hard OC forum.

[@kurtownsj00]

@@paddington1670 "Worked well" is fine...but when it's like, integral to your pool it better last say, 10 or 17 years!

[@scottbitz5222]

@@kurtownsj00 Well, it's not actually integral, it's just dumping heat from the computers into the pool. Not only that, they already have a backup so even if you have to cut and cap the lines out to the pool, the whole thing will still work fine.

[@kurtownsj00]

@@scottbitz5222 Makes sense to me!

[@InfinitygamingFtw]

I've always wanted to build a house with systems like this. I'm living vicariously through these videos

[@datachu]

Totally same!

[@MrRobertCortese]

This is a pretty brilliant idea. Every apartment complex with a pool should also have a colocation facility next door to keep the pool warm.

[@Chazzza]

8:28 - That's a nice Renault shirt

[@SmartGecko44]

Ikr

[@tjchoe5824]

5:20 Jake rethinking his life choices that led him to this moment. He'll have a hell of a resume though

[@jaimelab]

It is a really cool project indeed Linus. But I've studied this kind of water cooling system for energy efficiency in school (I'm a renewable energy engineer), and my concern is that maybe the energy required to actually move around all that water and the control system (valves, etc.) is actually much more than the energy (heat) that is generated from your mechanical room and your solar panels (these ones don't generate that much heat, I've studied that, and you will lose a ton of heat in the transport of the water). And, to heat so much water like in your pool you need too much energy. So you will end up heating just 1 or 2 degrees in your pool :/ My advice is maybe first to calculate roughly how much heat you're going to generate from solar panels and mechanical room, and then compare it to how much you need to actually heat all that water in your pool. You'll see that you need so much more heat. And that can kind of heat can be achieved (sustainably) with solar heaters for pools. These systems are very reliable and cheap. I suggest you look into these pool solar heaters systems, and maybe implement a heat exchanger there (at the inlet of the solar pool heater). It would be cheaper and surely it would maintain your pool warm :D Sorry for my bad English haha. Greetings from México! If somebody sees this, pls like it so that Linus sees my thought :)

[@marcosurresti]

Are you sure that it's cheaper to use that sistem plus air conditioning the server room to protect the computers from overheating? Because that was the point of all this.

[@alejandrinos]

The point of this system is cooling the server room, not heating the pool.

[@adamstanisaw2892]

@@marcosurresti yep the point was getting any free heating for water pool and protect computers. Even at 1 or 2 point celsius more, pool would be better to swim at.

[@ryanbickel8488]

I agree it is a fun project. But I think you misunderstood the point that his intent is to cool the server stack, not heat the entire pool. Adding minimal heat to the pool or its enclosure in the process of cooling the server stack is just a minor benefit. I would think the pool will also be heated for off-season enjoyment but by an actual heater.

[@ZiggyTheHamster]

They're basically wanting to use the pool as a giant radiator. I think this could work and use less energy than using an air conditioner to do it, but I think the flow rate and pressure required to keep the watercooling loop working and the flow rate and pressure required to efficiently dissipate heat will be very different and this will create enough loss that no heat makes it to the pool and they're just spreading the heat across the house instead. They need a passive heat exchanger that will let them run the loops independently at different rates and pressures.

[@jonathanevans9257]

Great fun video. In Sweden and the rest of Europe there is a great deal of pressure to reuse server heat in multi MW data centers, EcoDataCenter use the heat for local town and making wood pellets!

[@megatryn]

This is cool, the principle of it kinda reminds me of the heating/cooling system in Norway's New National Museum, which opened last week and I was an HVAC engineer on. Combining several heating and cooling sources and controling them to achieve a given temperature set point in any given area is quite a job :D If this is going to work properly, Jake's got some work cut out for him to program this. I love the solution here :D Remember to fit a frequenzy regulated pump, so that you can have the system flow regulated, so not to need shunts to regulate the heat running in the system. It seems like your pool contractor is quite old school tho, because using flow heat exchangers is quite common in newer pools connected to heat pumps and server rooms. I was just recently involved in a project where they used server room heat to heat the warm water in an office building and ventilation heating in conjunction with a sea water heat pump to control the heating and cooling in the building. In the winter you can also run the heat from the server room through your roof panels to aid snow melting. Also, to make the system more efficient, a heat pump between the pool and server room, is a good idea. ;)

[@cdoex1]

Well, the temperature control seemed fine when I visited the museum this weekend. But I also got the impression that certain rooms added fragrances to the air, like you can do in some luxury cars, forgot to ask the staff though...

[@megatryn]

@@cdoex1 Good to hear. It'd better, because we had five levels of testing all the systems for indoor climate control in all areas with and without artificial heat, cold and moisture generation to ensure the art is stored safely. -Quite a fun experience to be a part of. I don't know about the fragrances tho. Did you look for the secret door in the men's room?

[@cdoex1]

No, unfortunately I was not aware of that being something to look for.

[@hansdruf9132]

I think there are several problems to tackle, that should be considered, for this to work properly. 1)The main issue I see, is the "conflict of interest". The Water to the Hardware should be as cold as possible and the water to the pool should be as hot, as possible. 2)The pool probably isn't always filled 3)the low temperature difference between optimal hardware temperature and desired pool heating makes a direct loop basically useless for the heating part (and the plumbing has to be very thoroughly insulated; which it always should be...) 4)the contoll technology has to be very sophisticated (in this configuration) for this to work, even a bit I think, if you install 1)a buffer storage (a large high one, or even two for different temperature niveaus) you can minimize the controll tasks 2) a water/water heat pump would get rid of problem 1 and 4, but would obviously be very pricy Finally, if you get a buffer storage, you could also connect the floor heating, which is in ideal temperature niveau for the pc cooling as well something like that and some hydraulic switching and you're going to do just fine; but it would be a shame for it not to work efficiently; not worth the hassle at all, if it's not done correctly I hope you do read this, all the best

[@alexsis1778]

While dealing with heat pumps is definitely becoming more common in commercial systems, until fairly recently it was typically far more region dependent and anything involving a server room is not too typical in most residential housing. Dealing with server rooms is definitely far more common in the price range that Linus' house occupies but there's only so many pools that can be built for high end homes and almost none in the commercial space where such things would be more common. Unless a pool company operates in an especially affluent area or over an incredibly large area you're not going to find pool companies specializing in high end pool construction. Even then, most high end pools tend to spend their pool budget on things like decor, slides and waterfalls not whole home water cooling. Most pool companies I've encountered operate in a relatively small local area which means most pools they're building are going to be the bare bones basics.

[@GadgetAddict]

This reminds me of what the Romans used to do. Either we've gone full circle or Linus is a time traveler.

[@boycottwalton9718]

Who is Romans

[@lilypower]

@@boycottwalton9718 roman empire, ever heard of them? 😋 They used to heat their bathhouses with channels below/around them where they made fires

[@boycottwalton9718]

@@lilypower Oh I see. Thanks for the info

[@lezliewhicker8450]

@@ericalorraine7943 lookup Priscilla Dearmin-Turner, this is her name online, she's now the real investment prodigy since the crash and have help me recovered my loses

[@jewellwalker9808]

@@lezliewhicker8450 Investment now will be wise but the truth is investing on your own will be a high risk. I think it will be best to get a professional👌

[@dimitarkrastev6085]

Considering the size of the pool and the thermal mass it represents, I would just run the computers' heat through the pool 24/7. You will barely even scratch a degrees of difference in the pool water.

[@shponglefan]

This is what I was thinking too. It'd be interesting to see calculations on thermal exchange for this system and relative impact on the pool water. What does the actual math say about this?

[@asnaeb2]

@@shponglefan the math says Linus probably wants server room cool, pool hot is not the main goal.

[@robertjusic9705]

@@shponglefan im too woozy to do the math, hopefully someone else replies to this comment with actualy calculations

[@julkkis666]

I also want to see someone calculate this xd i mean what's the wattage of a standard 24/7 pool heater? The computers are propably at a capacity of like 3 to 10 kilowatts

[@tomo9126]

Until someone opens Chrome.

[@micahknight2294]

I am 5 minutes into this video... a thought before I finish the video: Vacuum DE Filtration. You can add a filter on the vacuum side of the pool pump by using gravity to feed a filter tank... the tank is at the same depth as near the top of your pool, so the top of the pool and tank are exactly matching. An added bonus to this is you can manage your pool fill in your pumproom without more complexity (but based on what I have seen in this video so far, maybe complexity is not a concern for Linus). You wouldn't even need to actually do the filtration in this vacuum side tank, but the concept could have been used to add your heat exchange solution and kept it easy to access, not a danger to bathers, and would have been likely a lot less costly initially AND been way easier to maintain. PVC plumbing in pools are always developing cracks and get damaged over time... how long will it take for this tubing to develop a leak? Might be a lot sooner than you anticipate based on personal experience with pools and the damage I have seen to main drains due to pool pressure etc... Anyway, rant over. I'll watch the rest of the video.

[@TypeErrorDubs]

As a software architect, watching them diagram this system I can’t help but think “but the maintenance costs…” Good luck, Linus!

[@Souls4Roca]

LTTStore.com

[@chrisharris1522]

not to mention the cost in materials which will probably reach the end of their life span before they have paid for themselves, how much does it cost to put in a window? ( I do realize the youtube video will probably pay for all this and the pool itself)

[@samohraje2433]

@@chrisharris1522 the overall materials are not that expensive. Heat exchanging tubes are like 2€ per 1 meter. Copper tubes are also relatively cheap, around 10€ or so per 1 meter. But the check valves, automatized valves, electronics and the last most expensive thing, the whole work, workers do not work for nothing, they don't live for nothing they need something... 15€/ hour in slovakia and that is one of the cheaper options.. this could potentially end up really quick when they find out what it takes to make this thing working... 🤷 and the last thing, the " snake " under the pool is too short to exchange acceptable ammount of heat, you pouring in to the tube like 80 degrees celsius, while it travels through the pipe befor the pool, it loose some of the energy and incomming water temp will be like 70 degrees but the tube is too short to exchange the rest of the energy, they are not made from copper, basic plastic PVC tubes, plastic is very good insulator but not another. The incomming water from the pool to the system will be like 35 degrees celsius and that's not good.. you need atleast 30 or less.. room temperature is best to avoid condensation as well

[@Vladimir_Kv]

@@chrisharris1522 For that they can simply look up hydronics maintenance costs. And as hydronics are used by people, those costs are fine. As Linus himself had said "we don't reinventing the wheel here, this is the same old wheel people already invented".

[@lostname1781]

This video alone is probably enough to reach return-on-investment before it is even completed. This is top tier content.

[@5471Pepe]

As a automation engineering student this project makes me so excited and I'm curious to see how well you're capable to implement your idea in the whole sistem

[@tabernaclejones6115]

I bet you make some crazy shit on factorio and/or Dyson sphere program, huh?

[@forna4090]

sistem

[@jarso]

As automaation engineer from Finland this is gonna be cringe jorney 😅. We have done heat recovery around 30 years. Best idea would have been geothermal heating and cooling (heat pump) and then just dumb all extra heat to the pool. Example. There is risk that those panels from the roof is going to boil and explode if pool dont Want any more heat. There should Always be Flow with those panels. Hope Linus Team find it out. :)

[@ixenroh]

@@jarso Do all automation engineers have horrible spelling and grammar? xD .. No jk jk, not a grammar nazi, but I couldn't help myself.

[@dinamush1342]

As a physics student this entire concept is awesome to me!

[@SkywereProductions]

This gives me whole room watercooling vibes and I for one am glad it's coming back!

[@king96ization]

Me: I will sleep early tonight so i'm not late for work Also me at 3am: Watching linus heat a freakin pool using heat from his servers

[@3DPrintingNerd]

this is absolutely crazy AND I AM HERE FOR IT.

[@pirojfmifhghek566]

I can't wait for the inevitable "some wild animals fell in and we accidentally made soup" video after they add the other gaming racks to the loop.

[@lastwymsi]

A wild Joel had been spotted! Good to see ya. ( not sure what algorithm shenanigans google is using, but I'm seeing your comments on all the videos we've both watched. Guess they figure people are likely to reply on comments made by people they sub to. )

[@Spazilton1]

Brilliant way of being able to write off the remodeling of your home as a business expense.

[@Jay-Dee]

And while you're busy watching spam your viewers with 2 adds in a 11min video plus youtube adds.... At this moment it's just flexing your money.

[@alien9279]

I was thinking the same lol. Make videos on everything you do, then its an expense! Clever stuff indeed.

[@TheEcoHome]

Wouldn't y'all do the same? Get off those high horses and stop lying to yourself. Linus is doing amazing, no need for this jealousy

[@locus2427]

I wonder how big of a creator you have to be to pull this off, to write something like this as a business expense

[@Jay-Dee]

@@TheEcoHome not really. I could not live with the lie. Same reason why I'm not a politician.

[@Snow_B_Wan]

I'm feeling like eventually since the server room is at the bottom of the loop it will inevitably catastrophically fail in the most Linus way possible and flood the rack.

[@jwhite5008]

Agreed. As any plumber will surely attest, there is no way such a large system will actually be totally enclosed and without leaks. I'd say, some sort of catastrophic failure is bound to happen in less than a year.

[@benediktbeh87]

And it will be glorious

[@douglas8568]

more content! :)

[@MutsFire]

Disagree, I AM a plumber and dont get why it inevitably would leak? Yes, ofc within 200 years sure, maybe Do it right and the risks are minimum.. Then again, i see some sharkbites* and other meh stuff in the video that make me wonder about the quality in murica/canada

[@aaronegro]

@@MutsFire I used to be a plumber apprentice in Spain a few summers, we did full buildings and the new build warranty is around 10 years. In 48 apartment blocks, we would barely have 1 leak or 2, and that was while going at full speed installing/soldering/etc. Totally agree with you, if well done, unlikely to fail for a very long time.

[@MrScorpnok]

As a building automation engineer this was refreshing to see with all the energy optimizations and things going on - a few things that came to mind is that u may have to get a pump with atleast 2 possible speeds, when both of the cooling circuits are open, you might want to run the pump at higher speed than with just one (this might not be neccesary but could be more efficient in dissapating heat from the servers) - also 1 handvalve for both of the circuits for balancing the flow between the two - also optional, but could prevent a situation where both electric valves are open but the water would still flow only through one of the loops (if the 1 loop has significantly more restriction than the other - if this happens it'll probably be the pool due to longer piping compared to the radiator) even if it isn't needed in the end, wont hurt to add them, just leave them completely open. Could also help in maintenance to be able to close them

[@MrScorpnok]

Oh just realized how old this video was... why do i get such old recommendations yet not new videos on my feed...

[@MrMW2nd]

Linus has finally done it. After years of " air cooling is better" and "liquid cooling is better" he's actually using both now

[@rtyzxc]

You already have the server room insulated, just use a heat pump (AC) from the server room into a submerged radiator in the pool. With the differential of hot server room and pool-cooled radiator, it will be the most effective and efficient heat pump ever. Running those giant water loops are going to take quite bit of power and the efficiency of both heating the pool and cooling the server room will be poor.

[@weakamna]

Yeah, I was wondering if they had any reasons behind not using heatpumps.

[@NathanSweet]

I think by the time we see a video like this, it's way too late for any good advice.

[@rph_redacted]

Literally thought about the same thing

[@N0t4v41l4ble]

I was amazed too he's not using an air to water heat pump to cool the room and heat the pool.

[@spuffles]

Agree, heat pump is the way to for sure.

[@DeinonychusCowboy]

I love jake just sitting at the side of the pool looking overwhelmed when linus is talking about how complicated this is going to be lol

[@Fuzzy6262]

As an engineer that designs radiant and snow melt systems, this is REALLY COOL. Should have given me a call, I would have been happy to layout your whole house and pool! ;)

[@CalMUK91]

As a marine engineer... this baffles my head. You made this way too complicated. All you need is a plate heat exchanger on the outlet of your pool pump. Companies like Alfa Laval make small ones that are not expensive and made from a titanium alloy. Just make sure you have an alternative way of cooling if you stop the pool pump.

[@petejones6827]

dude i always wanted to be a engineer and im looking at this like im not a engineer and i can tell you this is complicated beyond reason.

[@FavoritesAG]

Right, I hope they are doing more engineering than the doodles on the steel panel. Would titanium be overkill? 316 stainless steel should be enough?

[@kilianortmann9979]

But then the pool pump would have to be on all the time, the external radiator is necessary as backup since the primary objective is not heating the pool, but cooling the server. That is a two part loop already, adding the panels and the boiler onto that is certainly possible but its just as easy to make another two part loop. Heat exchangers vs the in floor system probably comes down to cost, the pool floor is not finished, so the only extra work is to lay the pipes + material cost vor some PVC tubing.

[@YourMJK]

Maybe the pool pump doesn't run continuously?? There are a lot of different ways to manage a pool.

[@dixonarc69]

@@petejones6827 It seems kind of simple to me...Also not an engineer.

[@idontwantachannelimjustcom7745]

The watercooled apartment with the radiator outside was the first video I remember. You have finally come full circle to your roots linus.

[@cstalt]

You should ALSO add a connection to the in-floor system so if it's winter you can dump the heat into the floor instead of the radiator outside.

[@weakamna]

I thought of this too when he talked about the indoor heating. Not sure if that's worth the even higher added complexity, but definitely worth thinking about it

[@georgwarhead2801]

in-floor systems use "normal" water for heating. he does all this additional work at with the cooling system, so that he still can use dedicated distiled colling fluids for the server. mixing it with the in-floor system would make all this work useless. also in-floor systems work normaly with ~40C° warm water( wich is way too high for cooling the servers), if you bypass the traditional heating system and use a heat excanger for the server and the temp sensors in the rooms ask for additional heat up, your in-floor system would also heat up the cooling water for your servers . the thermal output of this servers isnt enough for heating up the house so you still have to use the "traditional" heating source...

[@daniel_960_]

A heated pool in the winter is awesome

[@RWoody1995]

@@georgwarhead2801 40c coolant is probably still fine for the servers, the latent heat capability of water is HUGE afterall, that's still like a 50c temperature differential vs the max component temps you want, i've had a GPU loop which was quite warm to the touch, not burning hot but also uncomfortable to keep your hand on so i'm sure definitely above 40C, maybe around 50C and the highest the GPU ever got was 77C in the peak of summer with radiators that hadn't been cleaned in 12 months lol enough to maintain the max overclock i ever got out of the card 24/7 no sweat (1200MHz on an R9 290 that used to run around 800MHz on air since it would max out to 95C on the stock air cooler).

[@georgwarhead2801]

@@RWoody1995 40c on the hot end vs 40c on the cold end makes a huge difference. You are cooling 1 gpu, he wants to cool a system with several gpus + cpus. Normal cooling loops reach 40c max on the hot side

[@IAmCoopa]

I would love to see a natural circulation water cooling setup. If you configure your heat exchanger and piping accordingly, you could have redundant cooling capacity on top of your batteries and zero electricity required. Hell, you could bury some tanks below your pool and drain it through an impeller to generate a little juice. As an early career engineer I can't wait to buy a home and do some crazy things like you all.

[@JSwaid]

Then once you find out how little heat you are removing from that space, get yourself a heat pump water heater. 2 birds, 1 stone scenario. Heats water you will use year-round and will actively cool the area (when active).

[@chrisc1140]

That was honestly my first thought there. Since the main problem I've heard for heat pump water heaters is cooling down the room they're in too much that they don't work as well.

[@Bartimayus]

He's already got a water heater in there though for the underfloor heating.

[@JL-yl8gd]

I don’t see this heating a decent sized pool to much, maybe an inflatable Intex a couple degrees but not a 20,000 gallon pool…

[@pin65371]

Yup.. while this idea seems like a good idea it's not close to being the most efficient use of excess heat. The hot water heat pumps are the much better option. They are around 7x more efficient than gas and 3.5 times more efficient than straight electric.

[@JSwaid]

@@Bartimayus He has a mini-boiler for the floor heating and a ~50-60 gal tank water heater for domestic water [replace this]. The tank water heater would change to a heat pump (hybrid) option.

[@Zeihold_von_SSL]

FINALLY someone is, like me, thinking about building their own house and running it as effecient as possible! Sadly I don`t have the money to actually let my dream come to live. So I enjoy watching Linus doing all of that for me almost the way I would have tried to do it...

[@364dannym]

Same here

[@AntimatePcCustom]

No worries. The heat gained in the pool is less than 0,5 degree C. So i doubt it would feel any different. But getting the basement cold. Sure!

[@filip9564]

@@AntimatePcCustom estimate or guesstimate?

[@anonb315]

@@filip9564 We have to guess how large the pool is, and how much heat (power) the servers are producing, but let me try. Assuming the pool holds 70m^3 of water and the servers use 2 kW of power continously it would take 40 h to warm the pool up by 1°C.

[@WellBasicallyClub]

​@@anonb315 That's assuming very idealized conditions where the servers, pool water and plumbing together are an isolated system. In reality of course all of them constantly lose heat to the environment.

[@mariolongford2336]

Linus: 5:12 where THIS guy comes in Jake: 🤓...

[@mancampovestiminvatam]

I'd pump the hot air through pipes at the bottom of the pool and return it to the servers. Takes less energy and is extremely simple. With proper piping, you won't even need heat exchangers. You can combine it with fresh air intake. Doesn't need expensive and complicated parts. During winter, fan/air pump speed can be lowered to keep more energy in-house.

[@nEuDyYT]

That's a very cool idea and I'm looking forward to see the final result in action. Just hope it's not getting too cold outside at your region and the waterloop will not freeze inside the pipes

[@Fanta....]

You could probably use coolant instead of water if thats a problem. Cars solved that problem a long time ago. Ethylene Glycol has a much lower freeze point.

[@cody2930]

There in Vancouver Canada(or at least In that area since that's where the office's are) so it definitely does get cold enough to freeze water but that's what antifreeze coolant is for.

[@mannys4539]

@@cody2930 the problem with coolant is it becomes corrosive and reactive with mixed metals... thats why standard AIO coolers use mostly distilled water.. Linus even mentions it at the beginning of the video

[@deliriumsd142]

@@mannys4539 The lines would need to be buried or well insulated, then, but the longer the lines, the greater the risk in the winter.

[@tomwi_since2015]

i think it can't freeze unless the water flow stops or the servers etc shut down. the decisive factor is definitely the length of the lines and accordingly a well-adapted flow rate! the question is rather whether the pool temperature actually reaches the desired level as desired or expected. you can calculate it roughly, but the deviation is very high due to the strong fluctuations caused by external influences

[@elshadsabziyev]

All these ideas in this series make me think that Jake eventually will need his brain water-cooled just to keep up with Linus's craziness

[@SP4CEBAR]

1:58 appreciate the effort in adding the fake leaves and gue

[@sup5469]

the uni where i did my bachelors in germany (can be quite cold in the winter) heated two big faculties just with the heat from their massive computing cluster, very good design

[@illi1154]

You see, using your pool as an AIO is ingenious. A free cooling system for your PC, a personal heater, and a hot tub. This is a truly humongous brain moment

[@PrograError]

this is called going tree hugger to the extreme and saving paris.

[@chrisharris1522]

and it will have paid for itself some time in 2183

[@DrX_1030]

I love how they needed a mechanical engineer or a power engineer for all of Linus' zany ideas, they aren't really crazy, they're just more or less what you would expect to see in a large industrial plant.

[@TheAnion7]

This is a really bad idea, Linus. The problem isn't that people haven't tried this before, the problem is that it isn't going to work. I worked as a Hydronics System Engineer for extremely large homes in a mountain resort town. Living in Montana, I don't know a whole lot about Canadian winters but I imagine it gets below freezing at times. Typically, for an outdoor system, you want to use a mixture of water and 40% glycol to prevent the pipes from freezing and bursting. The problem with adding the glycol is that it lowers the specific heat capacity of the water, meaning more flow rate, larger pipes, etc. I don't how hot that would affect a pc water cooling system, the combination of the glycol and the flowrate can't be good. You couldn't simply drain the loop because you need a drain at the lowest point in the system, aka underneath the pool. There will always be some water remaining in the pipes. Essentially if you run straight water through these pipes you're asking for trouble. Trying to repair a blown pipe embedded in concrete is a nightmare and I can't imagine how big of a pain it would be in a pool. They make heat exchangers specifically intended to heat hot tubs, I've personally used them before and I know they exist. I would look into those.

[@wobblysauce]

Failure points for in-floor, are only if someone makes a hole in them.

[@GangsterDolphins]

Foreshadowing

[@TheTimtam112]

That assumes that the pipes are going to laid at a depth that is shallow enough to get below freezing and that the pool freezes solid. It also assumes they don't install some kind of expansion valve or heater to minimise the risk inherent in or chance that the pipes freeze

[@TheAnion7]

@@TheTimtam112 What you are talking about is more akin to a ground source heat pump, which works really well when they're done right. I've worked on several projects where we used a lake to cool the ground loop. The problem with using a pool is you don't really have enough thermal mass for them to run efficiently. Most people drain the pool at the end of summer because a freezing pool means a cracked pool and once that pool starts leaking you are SOL. An expansion valve isn't going to help because it's not going to stop those pipes at the lowest point in the loop from freezing. Sure, it will keep the rest of the system from being damaged, but they're not intended for ice. I suppose you could install some sort of heater, but then you're talking about something more like a snow melt system. Also, these systems are designed to be fail-safe, and they need to not be catastrophically destroyed in case of a power outage. I'm not saying you can't do what he's trying to, but he might want to consult someone who knows what they're doing.

[@ChiTownBrownie89]

From watching what this channel used to be to where Linus is now, good for you man, you are living your dream!

[@jaco_DR]

4:21 best part of the video 😂😂😂

[@MrEliwankenobi]

Kinda genius how much we are helping Linus finance his awesome house and the mods by watching videos on how awesome he is making it in a kinda awesome way too…. Hahaha

[@Gniark4012]

Why on earth does Linus' LTT shirt have the Renault Logo on it ? xD

[@okkomp]

Cool project. A couple of words from someone who works with this sort of stuff in industrial applications... 1) The original heat exchanger idea is the most simple. Just exchange it to a *separate* pump which you control/monitor with an arduino or PLC and have pool water flow through. 316 grade stainless steel is great for the heat exchager material for use with pool water, 304 also probably ok. Copper is the problem. Still would need a separate filter though as the channels in the heat exchanger are prone to getting clogged too. 2) Use 50% polyethylene glycol/water in the cooling circuit. Water can freeze in winter and you will have much bigger problems if the cooling circuit pump fails. 3) Typical concrete floors transfer about 100w/m². Concrete floors have a very low overall heat transfer coefficient (U) but the overall the heat transfer (Q) will depend on the temp difference between the sides (dT) of the cooling circuit and area (A). The equation for heat transfer is Q = U A dT. How much heat energy do you need to dissipate? If its for example peaking at 7 kW you may need around 70m² of floor/pool floor to effectively cool. Keep in mind that U (overall heat transfer coefficient) for a concrete pool floor is probably worse than a normal floor. If you don't have the correct area then you will have a higher temp in the cooling fluid and worse heat flux into the cooling and the system may not work as intended. As you have a radiator as backup this might not be a problem, but it might not be very effective either. It may also require another signal that if temperature in the cooling circuit is too high then the radiatior should be open. 4) To calculate the required water flow rate for your maximum heat input you can use the heat capacity of the cooling liquid (Cp) and the temperature differences (dT). The equation is Q = m Cp dT 50% Glycol/water has about 3.3 j/gK and assuming a 10°C temp difference for in/out and our assumption of 7kW you can calculate: 7000 = (m *3.3 *10) m = (7000/33) = 106 g/s or approximately 0.2 L/s which is not huge but still something. 5) google P&ID symbols for the correct symbol for a check valve. If you like I can make a proper drawing in autocad.. //process engineer

[@jankarloconsul]

Dont tell him that! I want to see the house freeze in the winter! Its gonna be an interesting video!

[@charlesgravett1367]

Hey Linus, haven't had a chance to check the rest of the posts, but was watching your video, and being that I've been in the pool industry for nearly 30 years, I'm curious if anyones pointed out the following. 1 - concrete is an insulator, therefore once the shell is heated to a point, the return loop on both your heat sources (server room and solar) will shut off, or worst case, overheat. 2 - if there is a leak in either of your loops from the shotcrete/gunite as this can happen during the application, you'll be opening up a huge ball of wax. 3 - You'd be better served using a couple of heat exchangers in the return loop of the filtration system as this is tried and true in the industry. if your current contractor is unaware of this, I would be very suspicious of their competence.

[@DynoMore]

Won't the pool water act as a heat sync and pull the heat away from the concrete? How do they handle maintenance on radiant floor heat, wouldn't that suffer the same maintenance issues? That being said putting the heat exchange somewhere accessible like the pool house does seem like a much better idea.

[@privatemale27]

Heat exchanger at the pool filtration system is totally what I was thinking would be best too. I also wondered about the concrete integrity with a flexible pex running through it. Lot of weight / stress change when the pool is empty or full. I wouldn't want to deviate from normal plans without an engineer approving.

[@Jaxdrill]

The more and more I watch Linus with his house projects, the more I just come to the conclusion that he's just a modern day Red Green.

[@gearheadlydia]

With the beard and the hat and everything!

[@davidbailey8170]

All he needs is more duckt tape and we're good to go

[@mikalbrown3227]

If she doesn’t find you handsome she’ll find ya handy

[@mistermr.6938]

Just needs an old crappy van to complete the effect.

[@PWN_Nation]

Only Linus would figure out how to make his pool a business write-off...

[@Zarglog]

I work in R&D in the pool equipment industry and I watched this with my colleagues. Was a lot of fun. Can't blame the contractors for getting confused, lmao! Btw if you wanted to, you can always use glycol as a primary circuit media for the heat exchanger as it's inert and have great properties for temperature transfer.

[@treasurewuji8740]

It takes a lot for water to change temperature. Does glycol take in more heat?

[@Zarglog]

@@treasurewuji8740 Water is more effective at high temperatures, but glycol shines when it comes to cooling due to its super low freezing temperatures.

[@deltacx1059]

2:23 just grab a marine heat exchanger, they are great for this exact thing. You don't even need them attached to your filter loop.

[@rar23424]

This is what I came here to say. Pumping the water all the way through the concrete seems really inefficient compared to just putting a heat exchanger inline with the filter system or on a separate loop.

[@hughsparks4572]

These smart house videos have been some of the coolest videos LMG has made. I hope and pray that jake can make a writeup about the parts and meathods of making it all work! Im sure he would take the overtime pay 😂😂

[@Gtoonm]

Any normal person with money would simply make every part of the system isolated and just pay more to cool/heat the parts that need to. Someone who knows and works around cooling and redirecting heat would come up with something as crazy as that. I love it

[@DB-47]

Actually same idea was implemented in early 80s as upgrade of Swimming stadium Podolí in Prague (Czech Republic) which was built in 60s for recreation and mainly for olympic games. Nearby about 1 km away is location Kavčí hory where are located Czech television (Česká Televize - ČT) studios and HQ, whose equipment (server rooms, TV studios equipment) even today produces a lot of waste heat, which is cheaper to dispose into 3 large pools (outer 33 and 50 meters and inner one 50m long) and save same natural gas for heating those pools. Those pools have usually 25 - 27 °C , so it is actually great coolant for ČT studios