Fisher install rear vent stove pipe guidance

[TomColeman]

Brand new to this forum, I can tell from what I've read this is a good place to learn something.

I'm installing my wife's family Fisher stove (mama bear? (25 x 21 x 24')) into my stand alone single story workshop. The stove has an 8 inch back vent venting. My thoughts were to run stove pipe in the space and chimney pipe through the ceiling and tin roof. To do this I would have to take a 90 degree turn. Due to space in the shop I would like to take the 90 degree turn immediately so the stove can be closer to the wall.

I know there are many things I don't know about the install, at least not yet. My first question here is if a 90 degree turn immediately out of the stove to go vertical causes any venting problems. Is this back vented stove intended to have a longer horizontal run before it goes vertical?

I know with the stove pipe in my space there are clearance rules as well I have to adhere to. I'm going to either put a brick all or some other heat resistant material so I can have the stove closer to the wall.

I'd appreciate any thoughts on the horizontal/vertical question as well as running a stove pipe near the wall. Thank you.

 

[bholler]

Brand new to this forum, I can tell from what I've read this is a good place to learn something.

I'm installing my wife's family Fisher stove (mama bear? (25 x 21 x 24')) into my stand alone single story workshop. The stove has an 8 inch back vent venting. My thoughts were to run stove pipe in the space and chimney pipe through the ceiling and tin roof. To do this I would have to take a 90 degree turn. Due to space in the shop I would like to take the 90 degree turn immediately so the stove can be closer to the wall.

I know there are many things I don't know about the install, at least not yet. My first question here is if a 90 degree turn immediately out of the stove to go vertical causes any venting problems. Is this back vented stove intended to have a longer horizontal run before it goes vertical?

I know with the stove pipe in my space there are clearance rules as well I have to adhere to. I'm going to either put a brick all or some other heat resistant material so I can have the stove closer to the wall.

I'd appreciate any thoughts on the horizontal/vertical question as well as running a stove pipe near the wall. Thank you.
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Run a tee directly off the back of the stove. The clearance for the stove can be reduced to 12 inches with a ventilated heat shield. That means a non-combustible material spaced off the wall atleast an inch with non combustibles spacers. With an inch open top and bottom to allow air flow. The single wall pipe needs 18 inches unshielded 6 shielded

 

[TomColeman]

Run a tee directly off the back of the stove. The clearance for the stove can be reduced to 12 inches with a ventilated heat shield. That means a non-combustible material spaced off the wall atleast an inch with non combustibles spacers. With an inch open top and bottom to allow air flow. The single wall pipe needs 18 inches unshielded 6 shielded

Ok so the stove itself can be 12 inches with the heat shield as described. The pipes (single wall) can be 6 inches from that same shielding. I read this quickly initially, now I think I get it. I'm looking to eventually put a brick wall (space on top/bottom airflow as you described) but in the short term put a non-flammable cement-board like material 1 inch off my wall and design in the space for the bricks that will be 6 inches from the pipe. Do you have any thoughts/recommendations on a cement board-like material that will eventually be behind my brick?

 

[bholler]

Ok so the stove itself can be 12 inches with the heat shield as described. The pipes (single wall) can be 6 inches from that same shielding. I read this quickly initially, now I think I get it. I'm looking to eventually put a brick wall (space on top/bottom airflow as you described) but in the short term put a non-flammable cement-board like material 1 inch off my wall and design in the space for the bricks that will be 6 inches from the pipe. Do you have any thoughts/recommendations on a cement board-like material that will eventually be behind my brick?

Cement board is fine so is sheet metal

 

[coaly]

Your stove is a Grandma Bear. If you set a couple bricks on the floor to raise the cement board, the wall fasteners don’t need to support the weight. And no fasteners in centerline behind stove.

The size of the shield needs to be large enough when measuring in any direction from stove on angles to unprotected wall, no part of stove is less than 36 inches from unprotected wall.

The 12 inch clearance is measured to the combustible, not the shield.