Replacing OAK tubing with flexible auto exhaust tubing?

cristiansmom

Member
Jul 17, 2008
79
Rhode Island
I thought I read somewhere on the forum that I could replace the flexible tubing for my outside air kit with a flexible exhaust tubing from the auto store. Has anyone done that and does it work okay? I mean it's meant for an exhaust so I'm sure that it would be fine for air on my pellet stove coming in and out of the house I just want to make sure. big price difference between that auto store and buying from a pellet stove store.
 

bholler

Chimney sweep
Staff member
Jan 14, 2014
19,452
central pa
I thought I read somewhere on the forum that I could replace the flexible tubing for my outside air kit with a flexible exhaust tubing from the auto store. Has anyone done that and does it work okay? I mean it's meant for an exhaust so I'm sure that it would be fine for air on my pellet stove coming in and out of the house I just want to make sure. big price difference between that auto store and buying from a pellet stove store.
Yes it would be fine. What do you have now? What would the benefit be in replacing it?
 

cristiansmom

Member
Jul 17, 2008
79
Rhode Island
I have nothing right now because the flexible tubing ripped from wear and tear over the last few years. Plugged up the hole in my wall so that freezing cold air when it come in but I do want to replace it.

Debi
 

heat seeker

Minister of Fire
Feb 25, 2011
3,097
Northern CT
You want something that can take heat, in case there's a burnback and hot gasses enter the OAK. Exhaust tubing should be able to handle some heat, I'd think.
 

tlc1976

Feeling the Heat
Oct 7, 2012
384
Northwest Lower Michigan

Auto exhaust tubing would handle it easily. It worked nicely for mine. Only thing I would do different is make sure the tubing is actually aluminized. I had to buy one section from one store and the other section from another store. The top one was aluminized and is still perfect. The bottom one is not and has some surface rust and the line is clear between the two. It's not a problem so I'm not going to tear it back apart and replace it, but still it'd be nice if they both looked nice. I could also put header wrap on it too.
 

Wooden Head

Burning Hunk
Sep 14, 2009
225
West Michigan
I used auto exhaust flex tube for both of my stoves. It has been in place for about 10 years. I painted it black with high temp paint before I installed it. Paint has held-up well with no rust.