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  1. HVAC
    I think I know the answer, but want to double check. In the attached image, what is the flexible joint in the duct work? What's the purpose? This system has it on the return side. Is the supply supposed to have one too?
  2. HVAC
    Hello all, I had an maintenance call on my furnace recently and the tech mentioned the humidifier was installed incorrectly. I have 2 return ducts returning into the the furnace and one duct supplying air to the house. The humidifier (currently) is mounted to one of the returns and the 4 inch...
  3. HVAC
    Hi all, I am currently finishing my own basement (I am not a contractor or anything, just a DIYer). The ceiling of my basement is still exposed. I can see the metal pipes that carry air from the utility room to the first floor (See photo) . Now I need to make ductwork in my basement. My question...
  4. HVAC
    There is an article about 2 foot rule of take off. Improve System Performance Using the Two-Foot Rule - HVAC Today In my case, There is already an existing take off from the top , can i directly have another take off from the side of trunk in same bay ? I don't have other option. The below...
  5. HVAC
    So I’m in the process of cleaning my dryer vent ducts. I have already cleaned the “hard metal” duct that runs outside. Now I have to clean the “soft duct” that is attached to the dryer itself. My question is... I have a gas dryer, do I have to shut off the gas if I am going to be removing the...
  6. HVAC
    Hello, I purchased an air scrubber as the one shown here https://library.coburns.com/specs/ACTIVTEK_9960009.PDF The installation per se is rather easy, but complicated by the extremely compact size of the system in my apartment. The info in the pdf says to mount the air scrubber past the air...
  7. HVAC
    I am putting in a very small 1/2 bath in my finished basement. I am trying to figure out the best way to vent and exhaust fan to the outside. Unfortunately, the wall that butts up to the foundation does not have a window and it sits on the opposite side of my patio steps. Of course the joist run...
  8. HVAC
    Hi All, I'm looking for advice on which size of trunk & ducts to use. I've used a ductwork calculator that is associated with Menards and they drew up a plan but it doesn't take into account some things that I need. I have a 1 story house with a basement. The furnace is in the basement. I...
  9. Building & Construction
    I would like to move my dryer down the wall by about 6 feet, but I can't move the exhaust vent (window and gas meter regulator within 36"). I am going to use cabinets which will sit on adjustable legs, so I will have about 4" of space under the toe-kicks. Can I use this space to run my dryer...
  10. HVAC
    I have a 1973 double wide mobile home. I have a Bryant 80 series gas furnace. The past owner seems to have messed up and jerry-rigged the ducting. And I can't seem to find any manual etc. that answers my question. So I'm going to try my luck here: Mobile home furnaces have two heat duct...
  11. HVAC
    I have a Bryant 80 series gas furnace. I think it's from 1973. It's in a doublewide mobile home. The past owner must have destroyed the original round crossover furnace duct tubing. They put in it's place cheap foil type tubing (don't know what to call it) and it's like 8 inches which I...
  12. Appliances
    Hi - this is my first post/time on this forum ever so please bear with me if I’m confusing or doing it wrong. Home Depot just delivered and installed a gas dryer at my home. I knew nothing about proper vent installation at the time. After the installers left I started questioning the common...
  13. General DIY Discussions
    So, I bought a new downdraft since the last one was busted and noticed when I was taking out that the previous owner had crafted a "metal box" that allowed the air to be pushed into the box from the downdraft and then it redirected it into the pipe into the floor which goes under the kitchen...
  14. Building & Construction
    I'm framing my basement ducts now and they are quite low. I was thinking of using 1x4 lumber at the bottom and 2x4 at the sides. Is that ok? Or can I just use plywood instead of 1x4s just to save more space.
  15. General DIY Discussions
    I was shortening a circular duct in my bathroom and when cutting it I uncoupled it from the main. I went in the basement and the wall and pvc to the radon system are in the way. On the other side is the main return ductwork. I'm a small enough person to crawl between the joists but I would have...
  16. HVAC
    I have a section of 8 x 20 rectangular duct, and I want to adapt it to connect to an 8 x 24 section. I have this adapter, and it says it is "pre-assembled with boot clips for easy snap-in installation". I don't see anything that this would snap into. The only options I see involve cutting out a...
  17. HVAC
    Hello all, first time poster here. I did try searching the database, so forgive if that has been discussed before. The house my family purchased about 6 months ago lacks (or so we thought) any hvac vents or returns in our finished basement. The other day, I removed a drop tile and poked my...
  18. HVAC
    I am in the process of finishing a basement. My contractor left an air register boot that hangs below the drywall by about 1" from celing. What is the best way to cut? Tin snips can't really sit against the ceiling (celing register) flush enough to make a good cut. Almost as if you need...
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