Outside air pipe materials

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Val

Member
Mar 17, 2012
121
NY
When Englander stoves, in particular, need the outside air kit hooked up, are there any other tubing materials that make a better outside air pipe than the cheap, easily dented flex tube that comes in the kit?
Did anyone ever use metal conduit, cpvc, or rubber hose.... like washing machine drain hose or automotive rubber hose or reinforced vinyl hose (with the white cross threads)? I mean these hoses could route to a wall without the outside air wall plate kit. You could use different fittings at the wall or run a metal conduit pipe straight through? Don't know if the rubber hose idea is good because the hot exhaust pipe is closeby, but it seems metal conduit might make a good tube.
 
When Englander stoves, in particular, need the outside air kit hooked up, are there any other tubing materials that make a better outside air pipe than the cheap, easily dented flex tube that comes in the kit?
Did anyone ever use metal conduit, cpvc, or rubber hose.... like washing machine drain hose or automotive rubber hose or reinforced vinyl hose (with the white cross threads)? I mean these hoses could route to a wall without the outside air wall plate kit. You could use different fittings at the wall or run a metal conduit pipe straight through? Don't know if the rubber hose idea is good because the hot exhaust pipe is closeby, but it seems metal conduit might make a good tube.
You can use just about anything you want but behind the stove it needs to be non-combustible (no PVC) and the diameter cannot be smaller than 2" anywhere in the run. More than 10' you need 3"
 
In case you are wondering about why it must be non-combustible, it is possible under certain conditions the air flow through the stove can reverse making your air intake in effect an exhaust with hot flue gases exiting it.
 
A power outage is one instance were the Hot exhaust gases can be reversed, as Smokey stated.

Please use a non combustible material.

Flexible exhaust tubing, there is solid 3" dryer vent that comes in different lengths at HD, Lowes, Etc, or if you know someone with a Pipe bender or have a shop close by, you can use Solid exhaust pipe (like on your car). Measure your dimensions and where the angles need to be.. Looks really clean. Make sure to measure the O.D on the OAK inlet and get a size thats close to it.
 
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