Is Western North Carolina a high-radon area, and does adding a fireplace affect radon levels?
Yes — Swannanoa, in Buncombe County, sits in the EPA's highest radon zone, and the storm rebuilds underway here are the ideal moment to account for it. A fireplace doesn't create radon, but disturbed foundations and river-valley crawlspaces are where it enters, and an open firebox can pull more up. A sealed direct-vent unit built into the new work won't.
Rebuilding is the moment to get it right
Swannanoa's recovery has homeowners replacing fireplaces and stoves in rebuilt and renovated homes — and that's exactly when radon is easiest to design around. Storm water and reconstruction disturb foundations and crawlspaces, opening fresh paths for soil gas from the bedrock, so a post-rebuild test is worth running before the new hearth goes in. We install and service fireplaces; we don't measure radon — but we'll always tell a rebuilding neighbor to get their number first.
River-valley damp and old Grovemont boxes
The Swannanoa River valley pools cold, foggy, damp air that keeps crawlspaces moist and soil gas active, and Grovemont's 1940s–60s homes came with original masonry fireboxes that draw room air hard. That open draw puts the house under slight suction and lifts more radon from below. A sealed direct-vent fireplace, taking its air from outdoors through a coaxial pipe, breaks that link — it heats the room without ever depressurizing it.
Warm when the grid's down, too
A sealed direct-vent unit with battery or millivolt ignition also gives Swannanoa heat during outages — a hard-earned priority here — so you get outage-ready warmth and a radon-neutral appliance together. Mitigation stays a specialist's trade; ours is a hearth that won't make things worse. We pull the Buncombe County permit on gas work and we're fifteen minutes east. Call (828) 545-0525.
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
- Can a wood-burning fireplace or stove actually pull more radon into the house?
- Are sealed direct-vent fireplaces the better choice for a home with radon concerns?
- Can a radon mitigation system interfere with my fireplace's draft, or vice versa?
- My home has an encapsulated crawlspace or a tight envelope — does my fireplace or wood stove need outside combustion air?
- Can a heavy fireplace or stone surround be installed in a home built over a crawlspace?