In a remodel, should I put a gas insert in my old fireplace or tear it out for a new built-in unit?
Flat Rock's historic 1800s homes come with oversized open masonry fireplaces and aging clay flue liners — and a sealed insert is usually the right move, fixing the draftiness while preserving the character. Tear out for a new built-in only when the old clay liner is failing badly enough that lining it isn't practical, or the remodel is reworking the wall.
The draft problem in an old open hearth
Those big Historic Flat Rock fireboxes were built for wood in an era when nobody worried about efficiency, and today they pull cold air down the flue and heat out of the room even when they're not lit. A sealed gas insert closes that opening off, reuses the masonry as its chase, and turns a net heat loss into a 70-percent-efficient heater — without touching the mantel and surround that give the house its character.
When the clay liner has aged out
The catch in these homes is the clay flue liner. Decades of thermal cycling crack and shift clay tiles, and if yours has deteriorated past the point where a stainless liner can be run safely down it, an insert isn't the answer. That's the case for a sealed direct-vent built-in that vents out a sidewall and needs no chimney at all — you keep the historic firebox as a decorative feature and put the working fireplace where it makes sense.
Preserving character, permitted properly
Flat Rock sits on natural-gas mains, and we're thirty minutes south in Henderson County — the county we pull your permit with and where we meet the inspector. Historic homes reward a light touch and licensed work: a sealed appliance, a pressure-tested line, and finishes that respect the period. Have us assess the fireplace before the remodel closes anything up. The consultation is free. Call (828) 545-0525.
Fireplace help in Flat Rock
We install and service fireplaces throughout Flat Rock and the rest of Henderson County — just 30 minutes south from our Asheville-area showroom.
Related questions
- What's the difference between a gas fireplace insert and a built-in gas fireplace?
- What are my options for converting a wood-burning fireplace to gas — logs vs insert vs new fireplace?
- Can my old builder-grade prefab (zero-clearance) wood fireplace take an insert, or does it need a full unit replacement?
- Is it worth replacing my old open-front B-vent gas fireplace with a sealed direct vent unit?
- Which is the bigger installation job — gas logs, a gas insert, or a full fireplace replacement?

