Furnace Installation in Lewisburg, WV
A new furnace here will run from October through May every year. Tell us about the house, and a licensed contractor who covers Greenbrier County will get in touch.
Tell us about the job
It takes about a minute.
Eight months of heat, and power that doesn't always hold
Furnaces in Lewisburg run from October through May. That's 8 months of the year, with winter nights averaging 23°F. A furnace here isn't sized for a mild stretch with a few cold snaps. It's sized to carry a house most of the year.
55.3 percent of homes in this area heat with electricity, and the power doesn't always stay on. Greenbrier County has seen 44 winter storms and 104 damaging wind events over the past ten years, and in 2024, 35 percent of West Virginia households went at least 24 hours without power. That's worth weighing when you're choosing a furnace and how it's fueled. If you're looking at a gas furnace, any non-weatherized model built since November 2015 has to reach at least 80 percent AFUE by federal rule. That's the floor, not a selling point.
- 8 months
- October through May, your furnace is on duty
- 23°F
- the average winter night it heats against
- 80% AFUE
- the federal minimum any new unit must meet

NOAA nClimDiv, 1991–2020 normals
West Virginia requires HVAC contractors to hold a state license.
The state tested this contractor before handing out that license, and the license belongs to the contractor, not to this one furnace install. West Virginia's Commissioner of Labor keeps the record, so if this contractor is licensed, that fact is on file with the state, not just on their truck door.
For this job, the license is what stands behind the work. On top of that, most cities and counties in West Virginia require a permit for a furnace replacement and an inspection once it's done, which is a separate check from the state license and comes from the local building office instead.
Source: West Virginia Legislature
- What size furnace does my house need?
- The right size depends on your square footage, your insulation, your windows, and your layout, so there is no single number that fits every home. A contractor sizes a furnace by running a load calculation on your house, not by going off square footage alone. Going too big wastes fuel and wears out the furnace faster through short cycling. Going too small leaves you cold on the 23°F nights that come through here from December to February. Get a contractor to run the calculation before you buy anything.
- How do I know it's time to replace my furnace?
- Watch for repairs getting more frequent, a furnace that struggles to keep the house warm, or a jump in your heating bills without a reason. Homes here need heat eight months a year, October through May, so a furnace that is losing ground gets tested a lot. If a technician tells you a repair costs a large share of what a new furnace would, that is usually the point to stop repairing. Age matters too. A furnace pushing past its expected lifespan is more likely to fail on one of those 23°F nights than a newer one, and with 35 percent of West Virginia households already going 24 hours or more without power in 2024, you do not want a furnace that adds another way to lose heat.
- Is a high-efficiency furnace worth it?
- It depends on how you heat now and how long you plan to stay in the house. Every non-weatherized gas furnace sold since November 2015 has to reach at least 80 percent AFUE, so even a standard furnace today burns less fuel than an old one might. A high-efficiency furnace goes further than that minimum, and the fuel it saves adds up more here given the eight months a year this area needs heating. A lot of homes here heat with electricity, so if you are switching from electric heat or replacing an older gas furnace, ask a contractor to walk you through what the efficiency difference would mean for your specific house.

