Pre-Built Combi Boiler System with VT2218 and Zone valves

Contact me at [e-mail] for consulting on a heating system or if you would like me to build you a system.
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#boiler #boilers #navien #vt2218 ‎#radiant #combi #heating #hvac #plumbing #construction #home #house #renovation#renovating @NavienInc ‎@TacoHVACtv ‎@Supplyhouse

[@adamkern3689]

Well done. The one thing I have never liked about prefabbing boilers is, more often than not, they are assembled so compact that service on the unit will be next to impossible. You have have done a really good job of striking a great balance. The "next guy" shouldn't have any issue working on this.

[@patrcrnn]

Nice Pro Installation! Good Job explaining everything as well.

[@yuryaraujo8796]

Well done ! Explained everything super thoroughly. Keep up the good work!

[@JimSperanza]

Thanks!

[@patrickg875]

Great Job and Thankyou for posting this.

[@JimSperanza]

Thanks for watching!

[@gemheatingandairconditioning]

That Navien manifold looks like some money!

[@tomearnshaw8532]

Be nice to see one fitted.

[@agentcmac]

6:20 is so key!

[@henryvachon4591]

Great video! This is the exact system I’m working on installing in my house. I was wondering though how to incorporate an outdoor wood burner into this setup.

[@JimSperanza]

You can use a heat exchanger to isolate the heat sources and switch over manually with shut off valves or use a controller to determine priority.

[@valenzaplumbing]

Nice job.

[@JimSperanza]

Thanks!

[@hightechjoe1]

The self fusing silicone tape holding the thermistors will loosen at higher boiler temperatures.

[@JimSperanza]

It's zip tied on underneath the tape.

[@Steve-bm2zm]

Is that the model that only lasts a few years? Is the computer board black yet?

[@stevepailet8258]

gsg your moving the camera around it made me feel queezy

[@user-nm9zg1zo9z]

Awesome video man!! Thank you. I could use your help sizing my old equipment to upgrade to something like this. Can we connect?

[@michaelisakov1108]

Can you do a video of a setup system and how to connect and fill water from main supply as well as how to bleed all the air from the system.

[@matthewwaring7134]

I would love to find some where I could get a three zone Navien NFB-175H boiler setup pre built like this!

[@JimSperanza]

You found it! Contact me speranzadevelopment @ gmail.com

[@75mjwalsh]

With a 1 zone combi Navien Boiler System ... I wonder if the Webstone H-5FK5-CH would be an alternative?

[@JimSperanza]

This is much more expensive than the Navien manifold and does not need the pressure relief connection as this is already located on the boiler. Also this is a primary manifold and can be used for single or multiple zones, regardless of the zone quantity a primary manifold is required on this boiler.

[@Agoattamer]

I've been in the commercial mechanical trade for almost 30 years. I'm more of the sheetmetal side instead of the plumbing. So I have no business critiquing any of your work. Looks awesome, actually! But boilers, especially these high efficiency condensating boilers just fascinate me. I've done a few, including a Noritz NRCB combi at my home. Awesome machine. I used taco zone valves and a 007-f5 circulator. I keep an extra zone valve and circulator for backup. Now 2 of my zones are baseboard and the 3rd does the basement hydronic fan coil. System works fine and it's into it's 3rd winter. Finally my question. I do not monitor temperature. I really don't know what the return temps are in respect to the supply. I have an outside air monitor to regulate boiler temperature. So would my system benefit from a circulator that uses pressure or ∆t to control flow? Would the cost of the pump actually pay off in the long run? Also, why don't you have a table? My knees and back hurt just watching you, lol

[@JimSperanza]

Thanks for the compliments. You would definitely benefit from a Delta T pump. It will ensure you are not over or under driving the heat emitters depending on how many are open and also the load changing whebln the heat loss differs day by day. I did try using a table before and also mounting it on the wall but it's actually been much easier for me because the size and weight of all the parts. I can climb all over and around while I'm working.

[@paulglendenning6409]

how big is the board you are using to mount everything on? just trying to get everything in perspective.

[@JimSperanza]

About 4 high 5 wide

[@jacobanthony3260]

Great job curious to know why u don't have a high limit switch and low water cut off install. Is it not required in your state or is it built in to the navian

[@JimSperanza]

Both are built into the boiler. Some areas do require this regardless of whether the boiler has them or not.

[@jacobanthony3260]

Seattle definitely does

[@paulglendenning6409]

in and out of the Navien manifold did you reduce or stay at 1.5"?

[@JimSperanza]

Reduced to 1.25

[@leonginorivera8309]

You have to charge 12,000 dollars , and not everybody wants to pay. Too fancy and expensive parts . But that's the way to do it if costomer like good quality.

[@JimSperanza]

You get what you pay for! 😉

[@onlyme972]

Only if you need it, from the Uk it looks expensive overly complex, clunky and yesterdays tech.

[@paulglendenning6409]

another stupid question. The backing board you are using is 1/2" or 3/4" material?

[@JimSperanza]

3/4

[@kriskaz2255]

last question, can the magnetic filter go anywhere on the main line or does it have to be on the return side?

[@JimSperanza]

Always place it right before the return to the boiler.

[@kriskaz2255]

thank you@@JimSperanza

[@aaronhall4361]

will the pressure relief valve be connected below the air separator?

[@JimSperanza]

The heating portion pressure relief valve is actually preplumbed internally on Naviens and is located on the top of the boiler. The domestic hot water pressure relief valve would be located on the service valves.

[@ericcecil6605]

Noobie question....but shouldn't the air separator be mounted as high as possible in the system?

[@JimSperanza]

Good question. The air seperator works by "scrubbing" the air out of the system. There is a media inside that traps microscopic air bubbles and allows them to escape. However there is a air bleeder also on the boiler itself at the top which is used to remove the majority of the air at initial startup.

[@JimSperanza]

@@PipeDoctor Thanks!

[@moeelmunaier1640]

for the secondary piping are you using 1" or 1.25"?

[@JimSperanza]

@moeelmunaier1640 it depends on how many BTUs you are delivering to the secondary zones

[@dapperdave2090]

where is the expansion tank?

[@JimSperanza]

Expansion tank is not shown. It will be installed once the system is mounted on the wall.

[@zdravkocvijetic7637]

How do you like the navien combo boilers? What do you think about gas leak problems on NCB 240e heat exchanger? I have navien ncb240e and have that gas leak, thinking to get something else but like navien more …. What u think ?

[@JimSperanza]

Typically what I've seen is the gasket deteriorating due to improper seating of the exhaust pipe.

[@zdravkocvijetic7637]

@@JimSperanza I got approved for new nbc 240/130H from navien itself

[@JimSperanza]

That is why I love Navien!

[@davidlucas4121]

Was the customer using only 1 loop per zone? Great video.

[@JimSperanza]

Yes 1 loop per circulator.

[@Jessedog11]

where's the expansion tank?, is it built into the Navien?

[@JimSperanza]

It will be connected to the bottom of the air eliminator. I ship it loose so I can slide the board into a pickup bed.

[@kriskaz2255]

hi i was wondering if the magnetic filter is a must have.. i just had the same system installed and my plumber did not put on the magnetic filter

[@JimSperanza]

It's definitely recommended however if most of your system is copper baseboard or pex for Ilin floor systems you will likely be fine. If you have cast iron radiators or old piping you will definitely want to install one. Either way if you are doing annual maintenance and flushing the heat exchanger annually you will be ok.

[@kriskaz2255]

thanks for the quick response i apprecite it. yes all of my plumbing is in cooper in the home but this is the second navien boiler installed in the last 5 years becase of a failed heat exchanger. not sure what caused it and was wondering if it may have been magnite. i will probably install the filter just to be safe, i also installed a water softening system hopefully it will work. thanks again and great videos. i wish my plumber was as neat and organized as you are @@JimSperanza

[@JimSperanza]

@@kriskaz2255 did you flush the heat exchanger every year?

[@kriskaz2255]

no i just purchased the house from my inlaws and i know they did not do that. I certinaly will i hope if i stay up on the maintanance this thing will last. it was an expensive mistake that they did not keep up with the maintanance @@JimSperanza

[@pavoutsinas]

vt2218 currently has circuit board issue as per Taco tech support. looking forward to revamp release to correct this some time after February 2023

[@JimSperanza]

I have heard of this but have not ran into any issues as of yet. What is the issue with the circuit board?

[@pavoutsinas]

@@JimSperanza basically the display and settings dont control the pump. the pump works. from the sound and also the almost identical supply and return temps, it seems to be operating full speed constantly. the LCD display 6watts power and 00gpm which is obviously not correct since all panel rads are hot.

[@yassinekremo5159]

How much the hole thing cost for the part 3 zone

[@JimSperanza]

Email me at [e-mail] for a quote

[@michaelsinderman653]

Where did you get the temp sensors for supply and return?

[@JimSperanza]

Local supplier.

[@michaelsinderman653]

@@JimSperanza are they generic or Navien specific?

[@JimSperanza]

Navien part # (GXXX001769)

[@michaelsinderman653]

@@JimSperanza thanks so much! I have a NCB-H, but the manual doesn’t show them working with that model. I’ll have to contact my local supplier!

[@martinheatingcoolingmartin4693]

Hi, I love the video. I do the same stuff with my own company. I’m not set though on what boiler I want to sell. I really like the Navien and I see you must too. Any opinions on using this boiler?

[@JimSperanza]

Personally I mainly use Navien because I've had minimal issues with them. Also by sticking with 1 manufacturer I really get to know the ins and outs of them and deliver a great product in the end.

[@martinheatingcoolingmartin4693]

Excellent, thank you for that response. I believe I’ll keep using Navien. I know their tech support is flawless.

[@martinheatingcoolingmartin4693]

The only thing was: Is the way I came to know Navien was only from service calls…really due to lack of maintenance.

[@martinheatingcoolingmartin4693]

So Navien didn’t have a good reputation in Maine. But that’s because it’s Viessman land. Oh well, I don’t like the new Viessman anyway. I really like the features of the Navien, it’s really becoming more popular here in Maine. They have a great selection of sizes and combis. Plus excellent service and are a well built product from what I see.

[@JimSperanza]

Yes there I'd a major lack of maintenance being done which causes many problems and people immediately blame the manufacturer.

[@eddie3314]

Cost??

[@timothyboconnor]

How can I contact you about a custom build?

[@JimSperanza]

Email me. Speranzadevelopment @gmail

[@michaelisakov1108]

How much u charge to make a setup like this?

[@JimSperanza]

Send me an email [e-mail] I can get you a quote.

[@jk6343]

what's your location?

[@JimSperanza]

Email me speranzadevelopment @ gmail.com

[@joecypress11]

You sent me your email address a couple weeks ago and I lost it. Can you send it again please?

[@JimSperanza]

[e-mail]

[@joecypress11]

Thanks

[@cr7droneshow694]

No expansion tanque?

[@JimSperanza]

Yes it gets installed right below the air seperator. I don't mount them until I hang the board on the wall.

[@cr7droneshow694]

@@JimSperanza ah ok tanks my friend.

[@cr7droneshow694]

@@JimSperanza in a radiant floor do you use the usual thermostats?

[@JimSperanza]

I use a thermostat that can also sense the slabs temperature. Tekmar 519 is my go to.

[@cr7droneshow694]

@@JimSperanza this thermostat brings sensors

[@colin4685]

Not just do your job and build it at the house? so strange

[@JimSperanza]

Main reason is because that's not my job 👍

[@ZIBO2830]

Auto fill at this navien sucks

[@ptech88]

I agree. Thats why a put a bypass for bleeding. Good call

[@FrustratedBaboon]

You don't make any sense to beginners. This video is useless for people trying to learn. I have a degree in Electrical Engineering and a degree in Thermodynamics and a degree in computer science. I don't understand anything you explained. Go and make fun of my coment.

[@BuddyNika]

It seems nobody wants to tell anybody how much they charge for this work, I can only guess why.

[@JimSperanza]

Nobody is hiding anything. Email me for a quote. Pricing can range from $6k to 10k depending on BTU, how many zones, heat only vs. Combi.

[@user-nm9zg1zo9z]

Awesome video man!! Thank you. I could use your help sizing my old equipment to upgrade to something like this. Can we connect?

[@JimSperanza]

Contact me at [e-mail]

[@paulglendenning6409]

what are you using for pipe support or pipe standoffs?

[@JimSperanza]

Ceiling plates, threaded rod and pipe clamps

[@paulglendenning6409]

3/8inch threaded rod?

[@JimSperanza]

Yes 3/8.