Remodel help needed down in Florida please!

[c8a]

This fireplace had a steel insert that was rusted through so I took a recip saw and pulled it out, I'm left with what you see in the pics. I was curious if my plan will be sufficient. I want to add a galvanized panel to the inside of the fireplace at the top where the damper would normally be, screwing into the brick from all sides and using high temp mastic/caulk to seal, cut out a hole for the 6" liner. Next, lay firebrick up to the plate and install a small wood stove and attach and seal the liner vent.. Will this be safe enough to use? Thank you for any feedback.

 

[begreen]

The wood framing is combustible and sets a clearance requirement. What stove would this be for?

 

[bholler]

This fireplace had a steel insert that was rusted through so I took a recip saw and pulled it out, I'm left with what you see in the pics. I was curious if my plan will be sufficient. I want to add a galvanized panel to the inside of the fireplace at the top where the damper would normally be, screwing into the brick from all sides and using high temp mastic/caulk to seal, cut out a hole for the 6" liner. Next, lay firebrick up to the plate and install a small wood stove and attach and seal the liner vent.. Will this be safe enough to use? Thank you for any feedback.
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You need an insulated stainless liner run from the stove out the top. And laying brick is fine but you need to get enough thickness of brick to bring it up to code. If using firebrick inside that is 8" I believe it is 10 without.

 

[bholler]

That absolutely was not built correctly to start with.

 

[c8a]

Begreen: The stove would be small and have good clearance from the sides of the installed firebrick, it would be used for small fires to provide minimal heat (its Florida, the room is large but the house is insulated with foam so it stays pretty warm) just to have a fire to watch and some heat production. My intention is to place firebrick and try to close off any places where there is wood.

Bholler: Yeah, the house was built in the 40's and the second owner was a prison guard, back then you could use the prisoners to build at no cost, so this was added by someone who claimed to be a mason LOL, its wonky for sure!
My local source for firebrick carries a 4x9x2.5. Are you saying I would need a brick that's 8" thick?

 

[bholler]

Begreen: The stove would be small and have good clearance from the sides of the installed firebrick, it would be used for small fires to provide minimal heat (its Florida, the room is large but the house is insulated with foam so it stays pretty warm) just to have a fire to watch and some heat production. My intention is to place firebrick and try to close off any places where there is wood.

Bholler: Yeah, the house was built in the 40's and the second owner was a prison guard, back then you could use the prisoners to build at no cost, so this was added by someone who claimed to be a mason LOL, its wonky for sure!
My local source for firebrick carries a 4x9x2.5. Are you saying I would need a brick that's 8" thick?

You would need 2 bricks to make the 8" only the inside needs to be firebrick