Insulating heating ducts in the crawl space under the house

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Uploaded by on Dec 20, 2008

I insulated the heating ducts under my house. I was getting cold air blowing through the vents in rooms furthest from the furnace. I had to seal all the leaks...that was causing low flow of heat circulation. Using mastic and fiber reinforced tape(like the kind you use on drywall or cement board, I sealed all the leaks. Also I insulated the heating ducts completely. Now I am feeling like the house is warming up when the heater goes on. What a difference. For the cost of about $220, I got everything at home depot. Reflectix insulation, Nashua tape, Master brand air duct sealant "MASTIC", and I used fiber reinforced tape that I already had - the kind you use on durock cement board. I am not an expert. There are not a lot of videos on insulating heating ducts so I made one.
I am positive that what I have done here will save money in the future. The house is warmer than it was - noticed it right away. Everything used can be found at home depot. Be inspired to save on heating bills. Instead of sitting around watching TV or wasting away like a zombie in front of the computer...it feels great to do a job to completion, and reap a money saving result.
OK you've heard it before on the home depot commercials - you can do it; we can help.
O' and it is quite a workout crawling around on hands and knees for about a week.
Enjoy :)
aislar ilhotas isolotti isolieren изолировать isoleerima eristää izolować îlots ізолювати отделям szigetel

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Uploader Comments (gregory747)

  • Your voice sounds so much like Joel Hodgson. ;)

  • @Di0genesus Thanks for saying so. I didn't know who that is but I looked it up. Thanks.

  • Thanks for watching. When someone leaves a comment, I try to think of anything else I can add to help you with your project. Although I am not an expert, maybe I can help. I also have another recent video where I save money by changing the heater filter. I know anybody can change the filter, but it is a reminder to save money on the heating bill. And in that video I show the way to oil the inducer, which if you froget to do or don't do, will cost big bucks on furnace service; on my channel.

  • Nicely done!! Better late than never. You motivate all of us!

  • @mrBLUDOGGY thanks for watching :)

  • HI I am glad you liked the video. And to answer your question I am saving, but did not yet figure it out by comparing bills from years past. I do know that the bill that got me motivated was around $450. This years highest is around $350. I did a test with a digital meat thermometer, put the probe into the duct. The heat loss from the closest heat register(vent/grill) the loss was 1 degree fahrenheit. Before I fixed it, the vent furthest in the run was blowing cold air. Definitely saving money

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  • hey thnx 4 the vid! i am doing this 4 customer n the morning! glad 2 know about the spacer deal! i am using 181 foil tape as well as mastic. I am also using "UGL" brand masonary waterproofer on foundation walls. covering the walls and floor w/ 8 mil poly. Thanks again YouTubers, for all the input!

  • "Get inspired, fix your heater. Okay."

  • Hi good video, I am getting ready to do this as well. I have a 120yr old farm house and all my ducts run under my house in a cold zone. I plan on insulating every duct in the cold zone. We often get $400, $500 and sometimes even $600 gas bills in extreme cold winters. I am doing one project at a time to reduce these high bills...I was just wondering if you noticed any reduction on your heat bills after completing this project?

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