A snow-covered two-story house at night during a snowstorm, with one illuminated upstairs window.

Furnace Repair in Osage Beach, MO

Furnaces here run from October through April. If yours quits, tell us what it's doing and a licensed contractor who covers Camden County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
An unfinished concrete basement containing a metal HVAC air handler, exposed wooden ceiling joists with sheet-metal ducts, a hanging bare bulb, copper pipes, and stacked cardboard boxes.

Seven months of work in the Lake of the Ozarks cold

Your furnace runs October through April here, on nights that average 25°F through the coldest stretch of winter. That is seven months of the burner lighting, running, and shutting off to keep the house warm. Each cycle wears on the igniter and the parts that control the flame, and older units feel that wear first.

Most homes in the area heat with electricity, and the power here does not always stay on. Statewide, 19% of households lost power for 24 hours or more in 2024, and Camden County has logged 7 winter storms and 57 damaging wind events over the past ten years. When the power drops in weather like that, a furnace that was already struggling does not always come back on its own.

7 months
October through April, your furnace is on duty
25°F
the average winter night it heats against
7 winter storms
in ten years, the nights a failure hurts most
Isometric line illustration of a cutaway single-story house showing interior rooms with furniture, ceiling ductwork, a chimney flue, and a furnace unit outside the exterior wall.
Your furnace works hardest from November through March.

NOAA nClimDiv, 1991–2020 normals

Why won't my furnace turn on?
Most often the thermostat isn't calling for heat the way you think it is, or power isn't reaching the furnace. Check that the thermostat is set to heat and the temperature is above room temperature. Check the furnace switch, which looks like a light switch near the unit, and check the breaker. If those are fine, the igniter or a safety switch inside the furnace may be keeping it from starting, and that needs a contractor to check.
Why is my furnace blowing cold air?
If air is moving but it's cold, the burners likely aren't lighting even though the blower is running. A dirty flame sensor or a failed igniter will stop the burners while the fan keeps going. It can also mean the thermostat fan setting is on instead of auto, which runs air with no heat behind it. Check that setting first, since it costs nothing to rule out.
Why won't my furnace pilot light stay lit?
A pilot that won't stay lit usually points to a weak or dirty thermocouple, the small sensor that tells the gas valve the flame is real. If it can't sense the flame, the gas valve shuts off to be safe, even though the pilot lit fine. Drafts near the furnace can also blow a weak pilot out. This isn't something to keep relighting on your own since gas is involved, and a contractor should check the thermocouple and the gas valve.