What size gas line does a gas fireplace need?
Around Fairview, plenty of homes run on propane rather than a gas main, and that shapes the whole sizing job. LP comes into the house at low pressure through the tank's regulator and needs its own orifices, and on these big wooded lots the tank often sits well off from the house — a long buried run that, paired with the unit's BTU demand, frequently calls for 3/4-inch pipe. We permit with Buncombe County.
Propane country, long runs to the tank
Fairview is propane country — the natural-gas mains along Asheville and Hendersonville don't reach these large wooded lots up Cane Creek and Garren Creek. On propane, the line is sized from the tank's second-stage regulator, and because tanks usually sit a good distance from the house, the developed length adds up fast. A 30,000-BTU cabin-style heater that would be fine on 1/2-inch over a short run can end up underfed over a long one, so we often step the buried, outdoor-rated line up to 3/4-inch to keep the flame full.
Converting a wood setup to gas
Wood heat is popular on Fairview's wooded lots, and creosote from all that wood-burning is the leading cause of chimney fires without a fall sweep — part of why some homeowners convert to a sealed gas insert or log set. Every one of those conversions needs a new propane line, sized by the appliance's demand and the run, not guessed from the old wood firebox. We handle the whole conversion — appliance, venting, and the licensed gas line — as one accountable job.
Licensed, permitted, tested
Connecting propane in North Carolina is licensed work — a landscaper can trench the yard and a mason can build the firebox, but neither can legally connect the fuel. We can, we permit with Buncombe County and meet the inspector, and we pressure-test every run, about fifteen minutes east of our showroom. Never DIY gas pipe. Call (828) 545-0525.
Fireplace help in Fairview
We install and service fireplaces throughout Fairview and the rest of Buncombe County — just 15 minutes east from our Asheville-area showroom.
Related questions
- Is a 1/2-inch gas line big enough for a gas fireplace?
- How do I know if my existing gas line can handle a new fireplace?
- Does the length of the gas line run change what pipe size I need?
- How many BTUs can a 3/4-inch gas line supply?
- Can a fireplace tee off the gas line that already feeds my furnace or range?

