Furnace Installation in Fayetteville, AR
A new furnace here will run from October through April every year. Tell us about the house, and a licensed contractor who covers Washington County will get in touch.
Tell us about the job
It takes about a minute.
Seven months of heat, and nights near freezing
Fayetteville homes need the furnace running from October through April. That's seven months out of the year, with winter nights averaging 29°F. A furnace here doesn't get an off season. It sits close to daily use for most of the year, then works hardest on the coldest nights.
Washington County has logged 16 winter storms and 99 damaging wind events over the past ten years, and almost a quarter of Arkansas households lost power for 24 hours or more in 2024. Nearly half the homes here heat with electricity, which means a power outage can mean a cold house. If you're installing a new gas furnace, federal rules set the floor at 80 percent AFUE, and a contractor can walk you through options above that line.
- 7 months
- October through April, your furnace is on duty
- 29°F
- the average winter night it heats against
- 80% AFUE
- the federal minimum any new unit must meet

NOAA nClimDiv, 1991–2020 normals
Arkansas requires HVAC contractors to hold a state license.
The license is held by the contractor, not tied to this one furnace install. Arkansas tested the person or business behind the license, and it stays on record with the state. Cities and counties in Washington County cannot layer on their own HVAC license on top of it, so the state's is the one that applies here.
The license covers who is allowed to do the work. It does not cover the inspection of this particular job, that comes from the local building office. A furnace replacement typically needs a permit before the work starts and an inspection after, and that inspection is what checks the gas connection and the rest of the install once the contractor is done.
Source: Arkansas Department of Labor and Licensing
- What size furnace does my house need?
- It depends on the size of your house, how well it holds heat, and things like window count and ceiling height. There's no shortcut that gets this right from square footage alone. A contractor will do a load calculation on your actual house, and that number is what tells you the size, not a rule of thumb. Getting it wrong in either direction costs you, an oversized furnace cycles on and off too much, and an undersized one won't keep up when it's 29°F outside.
- How do I know it's time to replace my furnace?
- Watch for repairs that keep coming back, uneven heat between rooms, or a furnace that runs longer to do the same job it used to. Age matters too. Furnaces built before November 2015 don't have to meet the 80 percent AFUE minimum that newer ones do, so an older unit is likely burning more fuel for the same heat. If yours needs heat working for seven months a year, from October through April, a furnace on its way out gets a lot more expensive to live with than one that's simply older.
- Is a high-efficiency furnace worth it?
- It depends on how much your furnace runs and what you're replacing. With heat needed from October through April here and average winter nights near 29°F, a furnace in this area gets a lot of use, which is exactly the condition where higher efficiency does the most. Every non-weatherized gas furnace built since November 2015 already has to hit 80 percent AFUE, so the real question is whether it makes sense to go higher than that minimum for your house. A contractor can walk you through the efficiency options and price each one for your situation.

