Heatform Model A Chimney Lining Repair

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Chucky D

New Member
Oct 1, 2025
1
Charlestown, Indiana
I purchased a home built in 1978 that appears to have Superior Heatform Model A fireplace. After a chimney inspection/sweep, I was informed my tile flue was damaged and told not to use the fireplace until this was addressed. I assume the Heatform itself is still in good shape as he made no mention of any problems with it. I would love to get my fireplace back in working order but I don't know how I can make a seal between a new liner and the Heatform. The Heatshield product looks like there needs to be room for the "bell"/form to pull up through the firebox, which doesn't look visibly feasible. Removing the Heatform seems like the hardest route as I don't want to damage the brick wall it sits in. I also would hate to lose the open hearth style.

[Hearth.com] Heatform Model A Chimney Lining Repair
[Hearth.com] Heatform Model A Chimney Lining Repair
[Hearth.com] Heatform Model A Chimney Lining Repair
[Hearth.com] Heatform Model A Chimney Lining Repair
 
I purchased a home built in 1978 that appears to have Superior Heatform Model A fireplace. After a chimney inspection/sweep, I was informed my tile flue was damaged and told not to use the fireplace until this was addressed. I assume the Heatform itself is still in good shape as he made no mention of any problems with it. I would love to get my fireplace back in working order but I don't know how I can make a seal between a new liner and the Heatform. The Heatshield product looks like there needs to be room for the "bell"/form to pull up through the firebox, which doesn't look visibly feasible. Removing the Heatform seems like the hardest route as I don't want to damage the brick wall it sits in. I also would hate to lose the open hearth style.

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Really only 2 options to keep an open fireplace there. Tear the face off pull the heatform line it then reinstall. Chances are you will find that its rusted when you do and not worth putting back in. The other is cut the box into pieces to get it out and build a masonry box in its place. There is just no way to get through the throat of those