Furnace Installation in Warrensburg, MO
A new furnace here will run from October through April every year. Tell us about the house, and a licensed contractor who covers Johnson County will get in touch.
Tell us about the job
It takes about a minute.
Seven months of heat, and nights that drop to 24 degrees
Warrensburg needs a working furnace from October through April, seven months of the year. On winter nights that average 24°F, the furnace is what keeps the house livable, and it has to be sized to run that many months without giving out on the coldest one.
Any new non-weatherized gas furnace installed today has to meet 80 percent AFUE at minimum. Close to half of homes in the area heat with electricity instead, and either way, the install needs to match how the home already runs. Storms are part of the picture too. Johnson County has seen 10 winter storms and 61 damaging wind events over the past ten years, and statewide, 19 percent of households lost power for at least 24 hours in 2024. A furnace that depends on electricity to start, even a gas one, won't fire without it.
- 7 months
- October through April, your furnace is on duty
- 24°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?
- There's no single number that works for every house, it depends on square footage, insulation, window count, and ceiling height, so a contractor needs to run a load calculation to get it right. Guessing at size or going by the old furnace's rating alone is a common mistake. Too big and it short cycles, wearing out parts faster and leaving rooms uneven. Too small and it runs constantly through those cold nights here without keeping up. A contractor will measure the house and size the new furnace to it.
- How do I know it's time to replace my furnace?
- If it's struggling to keep the house warm, cycling on and off more than it used to, or needing repairs every winter, it's time to start looking at replacement. Age matters too. Furnaces built after November 2015 have to hit at least 80 percent AFUE, so if yours is older than that, it's likely running well below what a new one would. With heat needed here from October through April and winter nights averaging 24°F, a furnace that's already struggling won't get easier to live with. Rising gas or electric bills for the same performance are another sign the unit is losing efficiency.
- Is a high-efficiency furnace worth it?
- It depends on how long you plan to stay in the house and what you're paying to heat it now. A high-efficiency furnace burns less fuel to produce the same heat, and with 7 months of heating season here, that difference shows up on more bills than it would somewhere milder. Almost half of homes here heat with electricity, and electric heat costs work differently than gas, so what makes sense for one house won't for another. A contractor can look at your current setup and fuel type and tell you what efficiency level actually pays off for your situation.