Oct 11, 2020 · Flex has a better chance of keeping noise down, especially if you give it a couple bends along the way. Size it generously - if you know the supply cfm, size the flex for the …

Apr 3, 2018 · This proves this room needs return or a jumper duct. But it also needs something to drive air movement. Maybe if you go ahead with this, put a jumper vent near the floor and …

Jan 11, 2023 · The duct transfers already conditioned air, so at least it is not the initial delivery of conditioned air. There is very little if any sound transfer through the transfer duct. I have a …

Dec 8, 2010 · Some times it seems like we fix one problem and make another, I have seen new homes in Las Vegas where jumper ducts were designed into each room, with massive poorly …

Oct 16, 2009 · The 3 suggestions of (1) A return air grille ducted back to the furnace, (2) A through-the-wall transfer grille and (3) A crossover duct (a jumper duct) are all reasonable …

Jan 6, 2024 · There's also the option of Tamarack's Perfect Balance in door return air pathway. I've installed one for my daughter's room so far and will likely install one for each of the other …

Jun 2, 2022 · The duct is a short section of flex pulled tight between two boots with rigid elbows turning the air. This jumper duct provides a return-air pathway when the bedroom door is …

Oct 18, 2017 · If you live in a house that doesn’t have dedicated return vents in the bedrooms and there’s also no hint of jumper ducts or transfer grilles, you have another option. Tamarack …

Jul 5, 2020 · The Home Depot link you provided shows 3" round duct, definitely not worth the effort with that size. I would think 7 or 8 inch round would work better.

May 24, 2024 · Jumper ducts into basements can be illegal due to fire separation rules. Depressurizing the basement by pulling all the return from there increases air leakage. If you …