We just bought a 1903 craftsman with two fireplaces and I had a reputable company inspect the flues for the fireplaces. One fireplace in particular we're trying to get into working order as it's a 7' wide field stone fireplace in a beautiful den. It's basically the center piece for the house. We're not looking to actually heat this house using it, but we want to have fires in there for ambiance when people are over.
This company, after several days of back and forth email conversations, has basically told us that the fireplace is unusable and a rebuild would basically be $50K. The reason is that the flue is too small for the opening. For those that want to do the calculations, it's a full arch opening and the dimensions are 47.5"W and 34"H. Using the 10:1 rule I came out to needing a flue with the area of 137sq.in. or basically just over 13" tube. I don't know the current flue size but they also tell me that the flue liner that they would have to put in the unlined chimney would only be like 6".
Here's my questions:
1. I found a site that builds full arch doors custom built to size for a "reasonable" price. With vents at the bottom, couldn't we get the doors and still have fires with the 6" flue? The vents in the door would control how much air the fire could get, right?
2. This fireplace is from 1903 and I think it's fair to assume that it was used to heat the house along with the other one back in the day. If the flue, which I'm assuming is 8" to fit a 6" liner, is nearly two times too small then how have they not choked out the house with smoke this whole time?
Basically, it blows my mind that the fireplace is unsafe to use and that we'd "smoke out the house" if we were to use it when it's clearly been used.
3. I know smoke can eat away at the mortar in the unlined chimney. But, how long does something like that take? Can we use the fireplace until we purchase and install the doors, which would be closer to this fall? I don't know if it makes a difference, but the chimney is encased in a wall from the fireplace to the chimney. It's still unsafe for carbon monoxide, but we have another layer stopping it from entering the living spaces and would ventilate between uses.
Any help would be great...
Thanks
This company, after several days of back and forth email conversations, has basically told us that the fireplace is unusable and a rebuild would basically be $50K. The reason is that the flue is too small for the opening. For those that want to do the calculations, it's a full arch opening and the dimensions are 47.5"W and 34"H. Using the 10:1 rule I came out to needing a flue with the area of 137sq.in. or basically just over 13" tube. I don't know the current flue size but they also tell me that the flue liner that they would have to put in the unlined chimney would only be like 6".
Here's my questions:
1. I found a site that builds full arch doors custom built to size for a "reasonable" price. With vents at the bottom, couldn't we get the doors and still have fires with the 6" flue? The vents in the door would control how much air the fire could get, right?
2. This fireplace is from 1903 and I think it's fair to assume that it was used to heat the house along with the other one back in the day. If the flue, which I'm assuming is 8" to fit a 6" liner, is nearly two times too small then how have they not choked out the house with smoke this whole time?
Basically, it blows my mind that the fireplace is unsafe to use and that we'd "smoke out the house" if we were to use it when it's clearly been used.
3. I know smoke can eat away at the mortar in the unlined chimney. But, how long does something like that take? Can we use the fireplace until we purchase and install the doors, which would be closer to this fall? I don't know if it makes a difference, but the chimney is encased in a wall from the fireplace to the chimney. It's still unsafe for carbon monoxide, but we have another layer stopping it from entering the living spaces and would ventilate between uses.
Any help would be great...
Thanks