Just found your channel. Your work is awesome!

Man, I remember back in the 1900's, When I could still run panned return bays.

Jonny boy

is that system for heat only ?

Didn’t show how to do it just that you did it ! What good does that do for a video ?

What brand drink mix was Johnny making? Zero sugar

Holy shit bro

What do you do when the a-coil box sits on the floor but the ducting goes down into a crawl? I ask because my plenum in the crawl is much smaller then my coil box. 21x21 but 14x16. Down only 10 inches then into the main trunk.

Hey bro I need to run 3/8 & 3/4 soft copper lines in new construction. I bought 50 footers but only need about 28 feet of run. I have to bend them into ceiling and out of the ceiling about 10 feet apart and the space is about 15 inches for the two 90 degree bends. Can you suggest how? Ive seen some videos where they bend copper lines by filling them with sand or water so no kinks. But not sure if I want to introduce moisture or debris into these. Thanks

I'm just learning HVAC, but can I ask why there are no step-downs on the trunk line? I thought by manual J ductulator stuff, you were supposed to step the trunk down to maintain static. Is that not a thing with residential? Genuinely curious, not being argumentative.

What happened no more new videos?

For heating, do inspectors want the seams on top of round pipe horizontal runs, or is that only important for exhaust fans or dryers where condensation dripping out of seams can happen?

Thanks for the music video I learned absolutely nothing

It would be cool to see this done on existing construction.

I have a question, on round metal duct work return air systems, specifically adjacent pipe connection, does the return air duct have to follow IRC Chapter 16 Duct Lap rule (male end of the duct shall extend into the adjoining duct in the direction of airflow). I understand the Supply air needs to follow this principle, but does the return air branch duct connections need to follow this rule as well?

So, no return for each room needed it?

Uso. How do I get in contact with you. I have a job for you here in the 684 of you have time.

Very professional. Perfect demonstration

So hard pipe was cheaper then using flex for the runs

Did you insulate the suppy or did it come insulated

Reading multiple forums on this system - odd they didn't show the "calculations" that are require by Rheia to make sure the flow balancing is correct. Also static pressure generated by conventional systems over long runs. A higher velocity insulated system may have a better chance but if they are relying on this system and design around it from the get-go and then have to retrofit regular duct work after the fact this will be a nightmare to try to fix. Yeah the old HVAC guys aren't as familiar with these types of systems but the math points towards this not working very well or at all... especially for long runs which traditionally require LARGER ducts to get the pressures to the ends so the flow is there.

I cant see what you doing 😕 🤔 😒

Bro, well done!!! Super impressive young man!

I Hate CRAWL SPACE so much.👎❌. It's A Pain in a butt to do Anything Down there. NOW, I am changing the AC coil and gas furnace......yes .... Complete system Horizontal 😢

Malo sole. Nice job.

Your video making me dizzy.. this isn't a extreme games video.. it's not like you jumping off a cliff!!!!

Cool videos utah style . Tinn knockers straight outta new Mexico here.

Who designed your duct work?

Clean metal work but why no tape on the seams and end caps or bubble wrap? We always put it on every piece of the trunk lines even when getting finished.

Great job man! How many BTU's?

We need more videos for types of furnces

Amazing bro please make more videos we learn a lot from you ❤️

Airflow, Rheia says 10-12 vents per ton. 400+ cfm per ton is tolerable by most manufacturers. So at 100' equivalent length(not nearly as far as you would think), at a static of .10 which is a good target with a low restriction central return air nets you 20 cfm per vent. So, not accurate Rheia. Youll need 20 vents per ton. Now, going to 4" you do a lot better, 40 cfm per vent. So 10-12 per ton. Thays assuming not a lot of duct length. On a multi story setup, its easy for length to easily go over 200' in a flash, if not 300' Now, builders, especially cheap ones that this has attracted love their 2x4 walls. So 3" is the standby, because 4" wont work in a 2x4 wall. Rheia would have been best to bail the 4" sku's and focus on 5", which would fit in a 2x6 wall. Now that would deliver 65-70 cfm per run at 100', 6 vents per ton....and fit inside walls with their uninsilated flex. Most designers are going to struggle with actual true length runout calcs, and with these small sizes, Rheia is going to have issues on their hands. Not enough vents, not enough availabke usable static, and there are going to be a lot of unhappy people.

The math doesn't work out. This product was sold to national home builders directly, and its gaining popularity extremely fast, and I predict its going to implode as fast as its coming on to the market. Typically, I'm seeing 25-35 3" runs, and there must be lots of 2.5 to 3 ton applications in that range. Most HVAC guys would agree, on the supply side, the equivalent of a 15" or 16" round would deliver that 2.5 to 3 tons depending on how complex, long the supply and return air is, how much static is available after a filter, coil, furnace/Air handler has been designed into the system. The vents themselves are also very restrictive when compared to a typical vent you see available at even home depot (just looking at their shape). I get it, its about creating some velocity at the air exit. But the shape in both the round and thing wall vents is by its nature restrictive, a lot more than a typical 4x10 vent when compared to what the air volume its delivering. The big issue here, is the math, and static pressure, even running out a 16" equivalent trunkline, to 12, final 6" vents, keeping crossectional area constant in comparing 12, 6" vents, with with 12, 6" vents, that nets a 336 sq inches. These small 3" vents, are only 7 sq inches cross section. So, to keep crossectional volume similar, you would need 48 of these small 3" vents. If this company says its ok to have less vents than that, wow, its only going to perform worse, not better. Now, back to 12 vents, 6" size on a normal 3 ton application, 336 sq inches, that has a circumference of 216". That 336 sq inches of air is contacting 216 linear inches of ductwork as it passes through it. Static pressure is directly caused by the air interaction with surfaces. 48 of the small 3" vents, give you the same 336 cross section, except now that air through all 48 of those 3" vents is interacting with 432 linear inches. We are talking about double the surface area that the air has to contact with, its all friction, and thats assuming all things equal, we are comparing 6" home run lines just like these 3" lines are run. With a normal HVAC design, a single 16" trunk would apply here, and that helps even more the static pressure to be lower. As we know, static pressure isn't a linear relationship, nor is a blower curve. I'd love to know what Rheia recommends for a 3 ton setup on a small home, how many runs. I doubt its 48 lines, if its not, and its much less, the issues only compound. This is why so many people think this system is "high velocity" and it isn't. Its only the velocity and static pressure a normal furnace can handle. Max capability on the best variable speed furnaces is .8" static on heating, and 1.0" static available on cooling total. This is so so so so bad. a 3" duct (metal) running 30 cfm, has a friction rate of .28 inwg/100ft. A 6" duct running 100 cfm has a friction rate of .08 inwg/100ft. We are talking 350% higher friction rate. And thats compared to 6" home runs to every vent, which its widely frowned upon, because its one of the most restrictive ways to run a duct system, super inefficient labor wise, ineffective for packaging. This is just doubling down on a terrible installation method of 6" home runs, but in a result that is way worse that double. Closer to 4x worse. Critical thinking is gone. Packaging isn't even a win. Its just a dumbed down way to do hvac that takes the thought out of it to make things simple, but the impact on all things are going to be terrible. I understand, the market we serve is high end. I run about 50 guys, 10 Million a year revenue working on 150 Custon Estate homes a year that are all between values of 3 Million dollars, up to 100+ Million dollars each. But I didn't get to working on these homes over night. I have worked on all types of projects. Having 5 or 6 vents in a room where one would do it. What wall clutter. I'd love to know more. Anyone who has information they can post here, that would be great. For now, until someone can explain the math to be different, this brand Rheia, is missing its first name Dia. Its no different that the Aria vents that are out there. The math doesn't work.

This duct system should be banned. Static pressure is going to be off the charts. Let me just work through this real time.... I've been designing and installing creative HVAC solutions for 3 decades throughout the western states. Someone at Rheia just cant do math. This manufacturer is selling a extremely flawed bill of goods. National production builders have bought into this system and its going to fail. The math is simple. I assume this is likely around a 3 ton system, I don't see it being much smaller. So, on a 3 ton setup, a HVAC contractor would have a minimum of three 10" rounds, worst case, the equivalent of three 12" rounds. About between 235 and 300 sq inches coming off of the main plenum. Then typically, that would run out into 10-14 6" vents, or in many cases, we run less vents in a room, a single room with a 8", in that case, a 3 ton setup could run 6 or 7 vents total. With 10 6" vents, on the small end (which helps Rheia look better), we have 282 sq inches total in final vent locations. With a surface area of 188 linear inches of diameter between those ten 6" runs. The Rheia, has 3" vents. 9.5" per vent in circumference that offers 7" of cross sectional area. In this case, multiply all that times 23. 161 sq inches of area for air to pass through, passing over 219 sq inches of surface area. So, Looks like this duct system is only good for 2 tons if that (equivalent of a single 10x16 rectangular duct), yet is has significantly more surface area than a typical 3 ton setup. You can see where this math is going. If this system had the proper crossectional area enough for a 3 ton, you would need about vents to get to 200 sq inches (about a 16" round). Yet 30 small 3" ducts yield 285 area of circumference. Yet a 16" round yields 50 sq inches. we are talking 600% difference. Anyone just do the math. This is going to lead to some bad things nationally.

Man, I’m impressed with that 90 fab! Teach me more!

Thanks, putting in same unit. Read through the manuals but everything was horizontal and updraft with only a few diagrams regarding downdraft. So after watching your video we feel more comfortable about how we set it up.

Awesome video thanks 😊

Where you guys located?

Hey bro. How is the airflow?

put some towels down, primer mucking up the whole furnace.

So my hvac company sucks?😂

I got hired for hvac in condos the dude willing to train me but do you have any videos for condos I want to see how they work in the condo

ive never seem that type of duct design!!

Hey man just found your channel, I’m starting an HVAC helper job next week. Fairly green, I’ve never installed but I know my way around wiring and mechanically inclined. Any tips ? Hoping to make this my career.

great video and explanation. i need some advice on my new furnace installation. upflow system is leaking a lot of air while going to supply side. let me know how i can reach out to you.

I would have personally ran a ductless system using the in wall cassette system instead of running a ducted system

Better be on the sheetrock police team , making sure they a dopey don’t put a screw thru the flex ! Please put up pictures of the return and the finish wall grills, would love to see eyeballs on the wall , even a cyclops on ceiling. Lol Seriously let’s see finish pictures. Ty 👍

Is it structurally safe to have all those big holes in the floors?

You're by far smarter than me at this but let me school you it's for your longevity be a wise man get a dolly