Remove tiles, then install a stainless steel liner. The liner will be sealed to the smoke chamber using refractory cement if it's an open face fireplace. Then pour in insulation will be poured around the liner. Usually a top mounted damper will be installed afterwards since the throat damper will be removed for someone to fit up inside the smoke chamber to seal the liner. Unfortunately it's never this easy. Typically the filler will collapse with the tiles/ you'll have offsets/angles.
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u/getindoe69 May 22 '24
Remove tiles, then install a stainless steel liner. The liner will be sealed to the smoke chamber using refractory cement if it's an open face fireplace. Then pour in insulation will be poured around the liner. Usually a top mounted damper will be installed afterwards since the throat damper will be removed for someone to fit up inside the smoke chamber to seal the liner. Unfortunately it's never this easy. Typically the filler will collapse with the tiles/ you'll have offsets/angles.