Stove Installed - Clearance Wrong and Question

[black smoke signals]

That makes a little bit of sense, but still seems a bit wonky to me, given all the other factors that can affect draft too. E.g., do they take height of chimney into account also? Trees nearby? Other site specific things that could make the stove draft better and output more heat?

Maple 1 Minster of Fire You forgot to add wind to your post

 

[Jotel me this]

But he would still be too close to combustibles, the wood studs behind the cement board.

according to my Jotel instructions, the clearance measurment is to the surface of the wall. if it wasnt.. how far back in to the wall would you have to go before you avoided combustibles? The center of the 2x4? the exterior plywood ?

 

[bholler]

I would think that they would run the stove into an overfire to test peak heat radiance. You'd think anyway.

Yes they do which is why it makes no sense to me

 

[bholler]

according to my Jotel instructions, the clearance measurment is to the surface of the wall. if it wasnt.. how far back in to the wall would you have to go before you avoided combustibles? The center of the 2x4? the exterior plywood ?

In that case the cement board would gain you nothing because it is still a combustible wall. Cement board directly on wood studs does not make the wall noncombustible at all.

 

[AlbergSteve]

Are you still waiting? My stove says I can have single wall in a vertical configuration within 12" of combustibles.

Must have been some extensive testing! I've seen single wall glow orange from and inadvertent overfire, there's no way I'd have that within 18'' of the wall.

 

[bholler]

Must have been some extensive testing! I've seen single wall glow orange from and inadvertent overfire, there's no way I'd have that within 18'' of the wall.

Yes stove companies do go through very extensive testing. And just because your stove can make the pipe glow doesnt mean the ones tested for less clearance will.

 

[bholler]

Must have been some extensive testing! I've seen single wall glow orange from and inadvertent overfire, there's no way I'd have that within 18'' of the wall.

But i dont install single wall under 18" or even at 18" just as i dont install double at 6 i always exceed minimums for stoves and connectors.

 

[maple1]

Maple 1 Minster of Fire You forgot to add wind to your post

That would fall into the 'other' that I mentioned...

 

[cjgoode]

So a "draft" guy from woodland advised you that it is better to give up heat from the pipe???

Yeah, they had a guy call me who was a specialist in drafts when I was trying to plan my chimney. He explained how I would get MORE heat in the room from a single wall pipe then a double wall. And if the height of the chimney was correct for the stove no need for a double wall stove pipe, chimney should still heat up and draft well. He was actually very knowledgeable and the setup he laid out so far has drafted extremely well. I did a ton of research before and after talking with him. Ended up doing the single wall like he recommended and adding 3 feet more to the chimney like he recommended. I go up 6 feet, 90, 6 feet horizontal to a T junction and 9 feet up. The 6 feet horizontal is what really concerned me with my plan, and they were great to work with me to get it installed where I wanted and go out through the wall past the eve. There were great to work with and my research validated his recommendations and I am very happy with the outcome.

 

[bholler]

Yeah, they had a guy call me who was a specialist in drafts when I was trying to plan my chimney. He explained how I would get MORE heat in the room from a single wall pipe then a double wall. And if the height of the chimney was correct for the stove no need for a double wall stove pipe, chimney should still heat up and draft well. He was actually very knowledgeable and the setup he laid out so far has drafted extremely well. I did a ton of research before and after talking with him. Ended up doing the single wall like he recommended and adding 3 feet more to the chimney like he recommended. I go up 6 feet, 90, 6 feet horizontal to a T junction and 9 feet up. The 6 feet horizontal is what really concerned me with my plan, and they were great to work with me to get it installed where I wanted and go out through the wall past the eve. There were great to work with and my research validated his recommendations and I am very happy with the outcome.

His recomendation to use the pipe for more heat is completly wrong. He may have been right that you didnt need the double wall. But his reasoning is a problem. With the setup i am extremly surprised that it works. Because by the engeneering charts it shouldnt at all. What stove is hooked to it and how often do you have to clean?

 

[cjgoode]

I never even considered looking at my stove manual for the pipe clearance. Who knew. Code said single wall pipe had to be 18 inches, I made sure it was all over 18 inches. Code never mentioned the type of stove could change their minimum clearances. I guess I went like bholler, I considered everything the MINIMAL and I wanted to remain safer then the minimum.

 

[Sodbuster]

Maple 1 Minster of Fire You forgot to add wind to your post

Wind is a variable while the others are not, it would be very difficult if not impossible to test for, you have direction, house features, steady or gust etc,etc,etc.

 

[Ludlow]

I never even considered looking at my stove manual for the pipe clearance. Who knew. Code said single wall pipe had to be 18 inches, I made sure it was all over 18 inches. Code never mentioned the type of stove could change their minimum clearances. I guess I went like bholler, I considered everything the MINIMAL and I wanted to remain safer then the minimum.

Mine says 12 but I ended up several inches better after all was said and done. Just in case I want to make the pipe glow red at Christmas.

 

[sesro1978]

Following up on this as I am the OP.

The dealer is going to reimburse us for the cost of wall shield construction, though admits no fault and has issued no apology...in fact, I was made to feel like it was my fault (when all else fails, blame the customer).

This entire experience makes me sick to my stomach and I guess I've learned a hard lesson. I'm truly beginning to feel like that if I want something done correctly, I should do it myself.

I wanted to say thank you to all of you who have provided feedback and insight around this issue - I really appreciate it. Here's to moving onward and upward!