What's the mechanical difference between a natural gas and a propane fireplace?
In Asheville you're almost certainly on natural gas off the city mains, so a fireplace here is jetted for steady line pressure rather than a tank. Its propane twin is the same firebox and casting — just smaller burner and pilot orifices and an LP-tuned regulator. Your street decides the fuel; you choose the appliance.
One casting, two jettings — across every Asheville neighborhood
Whether you own an original masonry firebox in Montford or a clean-face linear unit in a newer South Asheville build, the natural-gas and propane versions of an appliance leave the factory as the same casting. Natural gas holds under half the energy per cubic foot that propane carries and arrives at lower pressure, so a gas-main setup uses larger orifices and a regulator matched to the utility's steady supply. That calibration is the entire difference — the metal is identical.
Being on the mains carries a quiet advantage most of the county's cabins never get: no tank to watch, and nothing to run dry on a cold January night when temperatures still drop into the 20s. The fuel simply keeps arriving.
When a home on the Buncombe edge is actually on LP
A few properties past the mains still run propane. Converting an appliance means dropping in smaller burner and pilot orifices, resetting the appliance regulator for propane's higher manifold pressure, and sometimes nudging the air shutter so the flame pulls the right combustion air. Feed a natural-gas orifice propane and you get lazy, sooty flames licking the glass and a carbon-monoxide risk — which is why fuel setup is licensed work, not a swap to eyeball.
We're headquartered right here at 629 Emma Rd, so before anything gets lit we confirm exactly what's feeding your address and pressure-test the line. Call (828) 545-0525 or visit the showroom.
Fireplace help in Asheville
We install and service fireplaces throughout Asheville and the rest of Buncombe County — we're headquartered right here.
Related questions
- What is an orifice, and why are natural gas and propane orifices different?
- What does a natural gas to propane conversion kit actually change?
- Why do natural gas and propane flames look different?
- What gas pressure does a fireplace need — what is manifold pressure?
- Does high elevation affect how a gas fireplace burns or how much heat it makes?