Do I need a high-altitude conversion kit for my gas fireplace, and above what elevation?
Out around Brevard, plenty of homes run on propane rather than a gas main, and that changes the high-altitude answer: the orifice is already sized differently for propane, and above a model's listed elevation ceiling it changes again. At 2,230 feet some units clear it untouched and some don't — we check your specific appliance and fuel together before anything goes in.
Propane and altitude are one setup, not two
A gas fireplace burns propane through a smaller orifice than natural gas because propane carries more energy per cubic foot, and thinner mountain air adds a second correction on top. In Brevard's propane country — the cabins toward Connestee Falls and Sherwood Forest and the wooded lots outside town — we don't want to be pulling the burner apart twice, so we spec the propane orifice and any high-altitude derate as a single job. Get either one wrong and the flame runs lazy and sooty; get both right and it burns clean at 2,230 feet, which is the whole point of setting it for where you actually live.
Conversions are the moment to lock it in
If you're converting a wood firebox to gas or switching an appliance between fuels, that's exactly when the altitude piece should be settled — the unit's already open on the bench. As a licensed gas contractor we run and pressure-test the line a mason or showroom legally can't touch, pull the permit with Transylvania County, and set the flame for your elevation. Brevard's 80-plus inches of annual rain is rough on chimney crowns and dampers, a separate issue we'll flag on the same visit, forty minutes southwest of our Asheville showroom.
No single elevation makes it required
People want one number where a kit switches on, but it varies by brand and model — the figure is printed in your unit's manual, and Brevard sits right in the zone where it could go either way. We read your appliance, not a rule of thumb, then permit and inspect the finished job. Call (828) 545-0525 for a free assessment.
Fireplace help in Brevard
We install and service fireplaces throughout Brevard and the rest of Transylvania County — just 40 minutes southwest from our Asheville-area showroom.
Related questions
- Does WNC's mountain elevation affect how a gas fireplace performs?
- How much heat output (BTU) does a gas fireplace lose at mountain elevation?
- Do ventless gas logs work at high elevations, or are they restricted above a certain altitude?
- Do wood fireplaces and stoves draft differently at higher elevations?
- Why does mountain wind cause downdrafts in my chimney, and what fixes it?