How to detailed step by step proper way to install HVAC duct training 

I know this is two years old but after watching a bunch of videos, this was the only one that was actually helpful. Thank you!

Probably the best video on how to do this that I have seen yet

Such a great video, very well explained. I’m new into HVAC and haven’t learned much about ducts, and this was very informing

Wow! Congratulations, everything taught in great detail in the most efficient manner. Thank you Maestro and God Bless

One more quick tip if you use duct sealer on the inside of the takeoff you will seal in all of that fiberglass ps I do systems with 3% air loss I only tape the flex to the takeoff and put a zip tie putting the sealer on the inside first is going to be extremely messy especially for somebody that is not skilled in this trade just food for thought by aluminum tape works fine I've done hundreds of homes and pass with 3% air loss which is what they want in an energy star home

Appreciate the detailed video. Saved me some cash of paying to have this done. My kids thank you as well now their room won’t be hotter than the rest of the house.

You are a Great instructor (step-by-step) teaching all the steps to do the task. Thank You

This type of work should be taught in trade schools amazing video

Wish I could’ve seen you tape down the outer layer. Love the video. Thank you so much.

This is the greatest video of all time! Great filming, fantastic execution, cool dude.

Excellent how to. Thanks helped a lot.

Just what I was looking for. Thanks, be blessed always

This might vary by state, but when, mounting this way on the ceiling from the attic, are you required by code to use metal boot rails to fasten it to the studs?

Ph1s/Ph2s and adjustable elbows with blocking or snipping tabs out of Boot tend to be make for much better air flow and distribution out of register and make securing the register better too. However those B-box do make it a whole lot quicker and easier 👍🏽

Excellent, just what I needed, thank you and God Bless

Best video ever ..great job

At <a href="#" class="seekto" data-time="994">16:34</a> into the video, You didn't say what the white sealant is , is it Mastic or the regular sealant/caulk?

Bros a unit grabbing that fiber glass bare handed!

I am buying my stuff from your referral link. Good stuff

Great video, not in the trade but love learn new stuff. I am still waiting to find out when do you need to use spray the foam. 😂 Also, I have the “M” around one vent in the closet. Any tip how to insulate to prevent moisture? I got in the attic in the past but could find any roof leak so pretty sure it is condensation despite everything looks sealed.

The exposed fiberglass fibers won’t go airborne into the rooms?

@ <a href="#" class="seekto" data-time="991">16:31</a> what is the weather stripping used for the register box?

I would say dont slide.duct.on too far. Just maybe finger width also spray glue for the tape.

Good stuff

Great video, much thanks! However my register screws hit the sheet metal on the register. Did you drill pilot holes into the sheet metal? Or am I supposed to wooden frame the register so the register screws have somewhere to bite other then drywall? This is a ceiling register 10x10 and don't want it to fall.

Fantastic video!👍

Also. Couldn't you put seal around box lip where lip side meets ceiling floor as well? Before screwing box down.

Great video. Thank you.

What is the ideal duct size? I need to replace it in my home and are going to use the flex duct but dont know if 6 or 8 inch give enough air flow.

Really helpful. Thank you

Not sure why but my response has been deleted multiple times so I will try to post it as a new comment: Hi there. Actually I was referring to a non-adjustable collar which has much less leakage. You can even fabricate them out of semi-rigid flex duct pretty easily and they don't have to be long, just enough to have the bend be well supported and protect it from crimping. You can see what I mean in Manual D group 8 "elbows and offsets". Its the smooth rounded elbow and the equivalent length is very low. You can pull the flex duct over them to the register so insulation shouldn't be too much of a problem.

To reduce resistance, it would be better to use a rigid tapered 90 degree or similar connector between the register and the flex duct (<a href="#" class="seekto" data-time="1470">24:30</a>). Also a tapered connection off the plenum. Otherwise, great video and camera work!

Nicely done- hey I like that double stick tape idea and you mentioned that you would post a link to brand and where to buy but I don't see that here...Can you provide info?

Can you use duct work aluminum tape to seal around the edges of the sheet rock where the registers meet the sheet rock to keep any attic air from leaking into the conditioned space?

Would I be able to do that same process on a ceiling tile?

I have high static pressure on a new 3.5 ton heat pump. I know for sure the flex duct is the issue. I have two 12" coming out of the supply in opposite directions. I know I need an 18" for a 3.5 ton heat pump. I did a diagram layout of the duct in the attic. What would happen if I just replace the two 12" to 18"? Ignoring the downstairs, because everything is between the walls. The problem was even worse with an undersized return. The original and only return was a 24x18. The total static pressure on the unit was .9 W.C. I was able to drop the TESP to .66 by making the return 30x24. Since there is so much static pressure and the unit TESP is a .2 and I need an 18" for a 3.5 ton for 1400 CFM. How big does the supply plenum should be and what shape? Should the supply plenum split to 3 18" going out to each of the 3 distribution boxes? Do the other three distribution boxes also need to be larger? Looking at the triangle shaped supply plenum I have very little room up for a rectangle plenum. I think a 3 feet ductboard supply plenum should work. There is a foot from the Air handler to the ceiling and I think 2 feet from the attic floor to the roof. Now I am looking at two types of designs. Design #1 keeps the 18" ducts straight by having a single 18" coming out of the supply and then a distribution box splitting it to three 18". The sides would be coming out straight to the to side boxes and one going to the third box with a slight curve. Design #2 splits to three right at the supply plenum and goes to each box individually, but all three will have a slight curve. I will not be using any metal plenums..... it will be all flex duct and ductboard boxes, because of budget. I am not trying to make a perfect system, but trying to remove the restriction from the 12" undersized ducts installed and replacing the flex duct that was patched with mastic with new ones. Another question about the installation..... I have the flex duct running up and strapped to the roof for support. Since the supply plenum is low to the floor due to the roof..... Can the flex duct be run on the attic floor? Can you tell me which layout makes more sense and less restrictive? Thank you. Layouts: Current i.ibb.co/Ld9kmPM/Flex-Duct-Layout-and-Size.jpg Option #1 i.ibb.co/GHyS00g/2022-07-05-0002.jpg Option #2 i.ibb.co/PNN8mSB/2022-07-05-0001.jpg Air Handler Specs ibb.co/17VvF4B Video of attic ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-iInIN89q8GU.html

Thanks!

The duct adhesive in the amazon link is acrylic yet you said you prefer water based.

I have this in my home (the fabric stuff) and there is white stuff on it, almost like spray paint... is paint something y'all use on the inside or is it the "M" word??

Stupid question, what does the grill screw into?

Sir you have vacancy I am hvac air conditioner duct fitter 15 years experience Gulf country in Kuwait

I know this is going to sound crazy but i want to do this for my garage. I live in south texas and air flow sucks in my 2 car garage and i would love to do some work in it. Do you think its worth adding a duct to my garage and if so, what size?

2" ! When it counts!

Did I miss where the spray foam went??

I cringed while watching this. I had an entire new system installed in my home and I know they didn't do 1/2 the things you did. I get all sorts of smells from the attic in the home. Excessive dust...It's a nightmare....

Hi, how can we contact you for business inquiry?

Here's a valuable tip: The new metal duct is so thin that dropping an 8" elbow to the floor will destroy it, don't ask me how I found out. Today's duct is NOT your father's. Maybe two is better.

New 470a refrigerant that replaces 410a refrigerant, with Do-It-Yourself kit included..... ebay.us/tVSqEv

SaveGreenHere, do you know a good site to learn to calculate the sizes of the flexduct?