hey all it’s Wildside again. thanks for your help on my other questions. what a great forum!
we are working on a home addition and need to run the exaust pipe for the newer full size stackable dryer up the 2×4 interior wall and through the attic. THe questions are: should we track down ovalized pipe etc. to run inside the narrow framing or since the wall is a short run of 6 ft (and we have the room) would we be money and time ahead to fir out the wall an inch or two? Is there a minimum recommended clearance on 4″ flexible metal ehaust tube?
thanks again
Replies
Greetings wild,
This post, in response to your question, will bump the thread through the 'recent discussion' listing again.
Perhaps it will catch someones attention that can help you with advice.
Cheers
"Live Free,
not Die"
Code according to the FBC (Florida Building Code) is 1" min clearance from any wood member. Frame the wall (if it is non structural0 with 6" 25 g metal and you should be fine
Please clarify... are we talking exhaust air from an electric dryer, or exhaust gas from a gas-fired dryer?
If it's exhaust air, you can use 4" round galv pipe in the wall, properly taped, and then convert to flex when you emerge in the attic. Running upwards is not ideal... just asking for lint to accumulate in the bottom of the run, so consider a booster fan. If you have to go into the wall, check out a Dryer Box... dryerbox.com
If it's exhaust gas, then you need B vent and it's a whole new deal, with clearances, etc. I like to have mechanical subs do stuff like that.
wild .. depends on what you want for appearance... on a 6' wide wall like that we would furr the wall..
if you don't mind the appearance, you can box the duct
make sure your piping is good quality.. don't use any corrugated stuff... this is for long term.. i'd be installing either 4 " alum or 4" galv.. all the way to the roof jackMike Smith Rhode Island : Design / Build / Repair / Restore
It's often much easier to go through the floor, along the joist bay and out at the rim joist. Use galvanized stove pipe and fittings or solid aluminum, not flexible or plastic. Clean the lint trap with every load.
Beat it to fit / Paint it to match