Which brands make the best gas fireplace inserts?
For gas inserts we lean on Napoleon, Kozy Heat, Valor, Regency, Heat & Glo, and Mendota — all lines we carry. A gas insert turns a drafty old wood fireplace into a sealed, efficient heater, commonly 70% efficient or better. The best one depends on your firebox size, fuel, and whether you want maximum heat or the finest flame.
What an insert actually does
An open masonry fireplace can run a net heat loss — it pulls warm air up the chimney. A gas insert is a sealed, direct-vent firebox that slides into that opening, runs a new liner up the flue, and typically hits 70% efficiency or better. That's the upgrade: you keep the hearth you love and finally get real heat out of it. Every strong insert brand builds around that sealed-combustion core, so the differences come down to flame quality, heat output, and controls.
The lines we trust
Napoleon's Oakville X4 is a clean, value-smart natural-gas insert and an easy everyday pick. Kozy Heat's Chaska 25L is a Minnesota-built heater with the blower standard — a strong cold-climate choice. Valor's insert line, its L1, L2, and Portrait models, delivers radiant, power-optional warmth for outage country. Regency offers well-built gas inserts across several series, and Heat & Glo and Mendota bring premium fronts and the most realistic flames if looks lead your list. Different rooms, different winners.
Sizing and fuel decide the shortlist
Two things narrow the field fast: your existing firebox dimensions and your fuel. Natural gas along the Asheville and Hendersonville mains opens some models; propane out in Fairview, Candler, and the cabins calls for the right LP setup and orifices — wrong-fuel setups soot. We measure the opening, confirm the fuel, and match the insert, then run the liner, connect the gas line (licensed work only we can legally do), and pull the county permit. Call (828) 545-0525 for a free in-home assessment.
Related questions
- What are the best gas fireplace brands?
- What are Regency's most popular gas fireplace inserts?
- What are Kozy Heat's most popular fireplace and insert models?
- What are Valor's most popular fireplace and insert models?
- Which brands make the best wood-burning fireplace inserts?
- Is Napoleon a good fireplace brand?
Still deciding? Talk to a real installer.
Free assessments across Western North Carolina — no pressure, straight answers.