What's the mechanical difference between a natural gas and a propane fireplace?
Across Swannanoa, storm-damaged homes are being rebuilt and renovated, and a lot of those rebuilds are speccing new fireplaces and stoves — jetted from the start for the fuel at the lot, which here is natural gas. A propane version would be the same casting with smaller orifices and an LP regulator; the fuel comes from your street, not your preference.
New installs get the fuel right from day one
When a fireplace goes into a rebuilt Grovemont-area home rather than an existing 1940s-60s masonry firebox, we jet the burner for the fuel supply from the outset — larger orifices and a utility-matched regulator for Swannanoa's natural-gas mains. Getting it right at install beats discovering sooty flames the first cold night, and it means the appliance hits its rated BTUs exactly as designed.
River-valley fog and cold-air pooling are hard on masonry chimneys here, so many rebuilds move to sealed direct-vent units — still jetted for natural gas, just freed from the aging flue.
Why hearths made the rebuild list
After multi-day outages left the valley dark, a working gas hearth is one of the things families are building back in on purpose. A battery-backup or millivolt ignition keeps that fireplace heating whether it burns natural gas or propane — the ignition, not the fuel, is what carries you through an outage.
We're 15 minutes east of the showroom. Call (828) 545-0525 for a free assessment on a rebuild.
Fireplace help in Swannanoa
We install and service fireplaces throughout Swannanoa and the rest of Buncombe County — just 15 minutes east from our Asheville-area showroom.
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?

