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re: DIY Plenum and Ductwork Replacement
Posted on 8/24/15 at 2:25 pm to poochie
Posted on 8/24/15 at 2:25 pm to poochie
quote:
I think I can handle a little sheet metal work.
Its a lot more difficult than it looks. I'm just trying to warn you. You don't want to get in an attic and get have your ductwork pulled out only to realize you can't get it all back together. Its also not as simple as just re-running flex duct from the plenum to the diffusers. You'll need to see if you've got dampers as well. If you're going with hard pipe, its a lot less forgiving than flex, and a lot more expensive. It'll need to be properly insulated as well.
I'm am the worlds biggest advocate of DIY. But I'm very aware of whats above my head. Just some friendly advice.
1
Posted on 8/24/15 at 2:54 pm to elprez00
Laying the schedule out in my head: I'd get all the duct as reasonably close to ran as possible (basically ran next to the old duct) and I'd prefab the plenum in the attic next to where it's going to rest. Then once I have everything in place, the next available decent weather weekend, I'll pull all the old stuff, install plenum, connect ducts to defusers and new plenum. No dampers, all straight duct runs with one split. AC cools the house well enough but I know I'm losing a lot of efficiency with leaks. I plan on matching diameters to current ductwork.
Regarding flex vs hard duct, my house is a mishmash of both with original being hard, then two additions being flex. I would like to go all flex with the new stuff. Is there any downside?
Regarding flex vs hard duct, my house is a mishmash of both with original being hard, then two additions being flex. I would like to go all flex with the new stuff. Is there any downside?
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