The elbo section of duct work in basement fell down from the duct it was connected to and previous owner had it connected with duct tape. New application of duct tape did not hold it for long. So what is the safest way to connect these two ducts or at least prop it up to the ceiling so it cannot...

I'm installing a 2 ton goodman heat pump the house is 1000 sq feet,the duct work is flexible, 25 ft. long by 10 in. the R Value is 6. Is there anything wrong with the duct work I'm using.( to big, to small, wrong R Value, or does it matter.) North Carolina. Thanks

I have a 2 ton heat pump,will 10 inch duct work be to big or small or does it matter. Thanks Jinglehimer.

Hello, I need to run a new air duct from my furnace (forced air, 90%) system to a bathroom. There was an existing pipe going to the bathroom, but I had to cut the pipe in order to expand the bathroom. Now I am ready to re-run the duct to the new bathroom and I have two questions. Oh, the...