Furnace Installation in Nixa, MO
A new furnace here will run from October through April every year. Tell us about the house, and a licensed contractor who covers Christian County will get in touch.
Tell us about the job
It takes about a minute.
Seven months of heat, and nights near freezing
Nixa needs a furnace running from October through April. That's seven months a year, and winter nights average 26°F through December through February, so the furnace has to carry that load most of the year, not just through a few cold snaps.
Missouri sees its share of winter storms and wind, and in 2024 about 19 percent of households in the state lost power for 24 hours or more. A furnace here should be installed with that in mind. Any new non-weatherized gas furnace has to reach at least 80.0 percent AFUE, so that's the floor to expect, not the ceiling.
- 7 months
- October through April, your furnace is on duty
- 26°F
- the average winter night it heats against
- 80% AFUE
- the federal minimum any new unit must meet

NOAA nClimDiv, 1991–2020 normals
- What size furnace does my house need?
- The right size comes from a load calculation, not a guess based on square footage. A contractor measures your insulation, window area, ceiling height, and how the house is laid out, then runs those numbers to find the heat loss for your specific home. A furnace that is too big cycles on and off too fast and never runs long enough to heat evenly. One that is too small runs constantly and still can't keep up on the coldest nights, and with winter lows here averaging 26°F, you'll notice that fast.
- How do I know it's time to replace my furnace?
- Watch for uneven heat, rising bills for the same comfort, or repairs that keep coming back. A furnace nearing the end of its life often struggles to keep up on the coldest nights and short-cycles instead of running a steady, even heat. Since homes here need the furnace running from October through April, seven months of the year, a unit that's failing puts a lot of the year at risk. If a contractor has already recommended a repair more than once this season, ask them whether replacement makes more sense than another fix.
- Is a high-efficiency furnace worth it?
- It depends on how many months a year your furnace runs and what your current one costs to operate. Every new non-weatherized gas furnace sold today has to reach at least 80 percent AFUE, and a high-efficiency model goes beyond that minimum, so the question is whether the added upfront cost pays off for your situation. With heat needed here from October through April, a more efficient furnace has more months to make up that difference than it would somewhere with a short winter. A contractor can walk through the numbers for your specific home and furnace.

