Furnace Installation in Sedalia, MO
A new furnace here will run from October through April every year. Tell us about the house, and a licensed contractor who covers Pettis County will get in touch.
Tell us about the job
It takes about a minute.
Step 1 of 3: Equipment
Sedalia asks a lot of a furnace
From October through April, seven months of the year, your furnace is what keeps the house livable. Winter nights average 24°F, so it runs long and hard on the coldest ones.
Power is part of the picture too. In 2024, 19% of Missouri households went at least 24 hours without power, and this area has seen 8 winter storms and 47 damaging wind events over the past ten years. If a new furnace is a gas model built now, it has to reach at least 80 percent AFUE, the federal minimum, so you know it is not wasting what it burns.
- 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
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NOAA nClimDiv, 1991–2020 normals
- What size furnace does my house need?
- A contractor works this out with a load calculation, not a chart based on square footage alone. Insulation, window count, ceiling height, and how the ductwork is laid out all change the number. Sedalia winters push furnaces hard for seven months, from October through April, so a furnace that's too small will run constantly and still fall short on the coldest nights near 24°F, while one that's too large will short cycle and wear out early. Get the load calculation done before you buy anything.
- How do I know it's time to replace my furnace?
- Watch for repairs that keep coming back, a furnace that can't hold the house at temperature on cold nights, or a heat exchanger that's cracked or rusted through. An aging furnace that's starting to act up is often cheaper to replace than to keep patching, especially with seven months of heating ahead each year here. If your furnace is a non-weatherized gas model made after November 19, 2015, it's already required to run at 80 percent AFUE or higher, so a newer furnace won't necessarily save much on efficiency alone unless you're moving up to a high-efficiency model. A contractor can tell you whether what you're seeing is a sign the furnace is done.
- Is a high-efficiency furnace worth it?
- It depends on how long you plan to stay in the house and what you're replacing. A high-efficiency furnace, one rated well above the 80 percent AFUE minimum, burns less gas to make the same heat, and that adds up over seven months of heating a year here. It costs more upfront and usually needs a dedicated vent pipe instead of a standard flue, which can affect installation. A contractor can lay out what your specific house would need and let you weigh that against the fuel savings.