Who runs double wall out of their stove? I just want to move toward a safer alternative than single wall. If so, what brand? thanks!
While I think double wall can't help but be more rigid, and keep lower surface temps on outside of the pipe, I can't say that makes it safer. Better clearance to combustibles safety no doubt. What kind of safer are we talking about?
The double wall would help retain heat and keep the flue warmer longer, making more draft and keeping the moisture or gasses moving up and out of the flue, so less creosote build up. Either way is fine, just personal preference. Selkirk is a popular brand. https://www.menards.com/main/heatin...-adapter-black-stove-pipe/p-1444453725072.htm
Double wall here. Excel brand. It's pricey but that's what the local store carries. It's an affluent area. I too run the adjustable pipe from stove to ceiling support box. I do think in a way it's safer as mentioned above. Keeps the gasses hot for less creosote and the surface temp is cooler.
Been running single wall for just about 40 years and no problem keeping the flue temp in the range it needs to be for efficient burning. If you have a long run of flue pipe or are running low flue temps I can see the advantage but for the most part not needed in the "normal" short run. Clearances should not be an issue in most cases as the stove below it needs a certain amount of room. I have single wall pipe that is just about 35 years old and it still in fine shape. Never have had any creosote issues and that is with 3 different stoves.
I have the heavier single wall and it's really strong and rigid, the cheaper thin stuff (I wont buy that) is more flimsy but not to the point of being dangerous.
Actually, on clearances, it's automatically 18" with single wall. With double wall it's something like 6" or 8". I could have my stove 5" away from a wall with shielding in place and meet code, but the fan wouldn't fit then. I'd also have to futz around with elbows. Also, mobile homes here, require double wall. Are you bothered that double wall might be better? No one said single was garbage.
LOL-The OP said he wanted to be safer so I ask a question about why he thought it was safer. I quoted your post because you said the double wall was more rigid but that single wall is plenty "rigid". For most stoves the clearances for the single wall will not be a problem. Not at all I just ask a simple question, if your install requires it fine but no point in spending money on something not needed, the really good single wall pipe is not cheap either but much cheaper then double wall.
Double wall isn't that much more than really good single wall. I thought it would be but I remember the difference not being all that much.
You are correct, years ago I thought there was a much bigger difference (just checked prices online), now it seems much closer, that is with the 22 gauge single wall which is what I bought. Much bigger difference with the lower priced pipe but I have never tried that.
Double wall is mostly a clearance thing - with the Englander NC30 you could back up within 8" of a wall forget the distance on single wall