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OT airtight doors on fireplace

P

patsublett

Member
I am trying to put air-tight doors on my fire place. It is stone with a sheet metal insert with air ducted throug it. I want to burn it with the doors closed. I understand that is possible with ceramic glass in the doors however, the manufacture has a disclaimer that says "Not for fireplaces with metal inserts". Anybody with experience?
 
I may have what your talking about. Its a masonry fireplace with what used to be called a
"heatilator insert. This is plate steel with the masonry built around it and a regular looking opening. I bought a regular old fashioned fireplace door set. Has 2 bifold glass doors and a surrounding metal frame that sets against the face brick. There is insulation stuffed between the metal and face brick to make a pretty good seal, not air tight but good enough to shut down the draft. Point is have had this setup for 30 yrs with no problem, glass doors are fine and use it a lot.
 
That is what I have, in fact it is a Heatalator brand. I have some bifold glass doors but they have a lot of gap around them. I would like to totally seal it because I have blowers above the mantle that blows air to my bedrooms down stairs and they pickup a little back-smoke and take down stairs which is very objectonable.
 
I never had a fireplace but isn't there some type of fire proof rope avail. for sealing gaps. Maybe go to a fire place shop and talk to someone.
 
It will never really work. Only option is a true air-tight fan forced fireplace insert.
Installed one in my place. Turned the fireplace from something that the took more heat from the house that what it made. Into something that can sweat us out of the house.
 
I have a heatalater Fire place to use bifold doors on it it is 36 years old. The only thing I can tell you if you don't like the dust and smoke don't use the fire place.
 
I agree with b&d. Unless you have another path for the combustion air (fan/duct to the outside) the burning process will pull air from the house through whatever cracks/openings in the doors it can find. If it was "air-proof" and you had no source of outside air for combustion, you're fire wouldn't burn. You CAN buy a "rope" that we use in equipment for glass plants for insulating around door openings, etc. Very hi-temp rated. Can't remember where we buy it.
 
Back at you re the doors. Just rechecked the doors and they are attached somehow to the face of the fireplace. I built that fireplace 35 yrs ago and dont remember how the doors are attached but they are not just leaning aginst the face as I said. Too dirty there to poke around for fasteners but it is tightly attached and I know there is some insulation. Like the others say there is high temp ceramic ins but this is plain fiberglass. You might go online looking for this type door. I have put tons of wood thru this, exhausting the heat upstairs to get mixed in with the house heat and there is no smoke stain around the doors so I doubt a good door would feed your blowers particles. Got a good fire in it tonite.
 
I have a metal insert in my fireplace and a couple of years ago I decided to do the same thing your wanting to do.
I got ahold of the people that made my insert and they custom built me a set of air tight doors with a glass in them and I love them now I can load the fireplace with wood before I go to bed shut the air way down and still have fire the next morning and not worry about sparks or wood falling out.
The name of the place is: New-Aire there located in Carl Junction (Joplin) Missouri, 417-649-6000, www.newaire.com, I delt with the owner and I can't think of his name but was a really super person to do business with.
If i had a set built again I would deleat the glass in the doors since they get sooted up pretty quick.
I did have a metal liner put in the chimney at the same time for a peace of mind.
 
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