Furnace Repair in Cedar City, UT
Furnaces here run from October through May. If yours quits, tell us what it's doing and a licensed contractor who covers Iron County will get in touch.
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Cedar City asks a lot of your furnace
Your furnace runs from October through May here, eight months of the year. On winter nights that average 20°F, it cycles on and off for hours to keep the house warm, and every start puts wear on the igniter and the flame sensor. Those are usually the first parts to fail, and when they do, the burner won't light at all.
Most homes in the area heat with gas, so a furnace that won't start on a cold night is not a small problem. Iron County has seen 36 winter storms and 32 damaging wind events over the past ten years, and storms like that can knock out power along with the heat. In Utah, 7 percent of households lost power for 24 hours or more in 2024. If your furnace won't restart once the power comes back, that's usually a sign something else needs attention.
- 8 months
- October through May, your furnace is on duty
- 20°F
- the average winter night it heats against
- 66%
- of homes here heat with gas, so most furnaces here burn gas
- 36 winter storms
- in ten years, the nights a failure hurts most
NOAA nClimDiv, 1991–2020 normals
A new furnace would cut about $110 a year off heating for a typical Iron County home.
Estimates for a typical Iron County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Utah fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when one part has failed and the heat exchanger is sound.
Replacement makes sense when the heat exchanger is cracked or the furnace keeps needing parts.
Utah requires HVAC contractors to hold a state license.
The Division of Professional Licensing tests HVAC contractors before it licenses them, then keeps a record of who holds that license. It covers the contractor as a whole, not the individual job on your furnace. Work under $7,000 is exempt from that requirement, so a smaller furnace repair can fall outside it depending on what the job costs.
Most homes in Iron County heat with gas, and a furnace repair means working on a gas connection and a vent, the part of the job where a mistake is dangerous rather than just costly. Where the job falls above that $7,000 line, the license is what stands behind the work, since the state has tested and recorded that contractor. Where it falls below, that line is the one the facts draw, and nothing here says another check takes its place.
Sources: Utah State Legislature · Utah Department of Commerce
- Why won't my furnace turn on?
- The most common reason is a problem with power or the thermostat before you get to the furnace itself. Check that the thermostat is set to heat and the temperature is above room temperature, and check the breaker for the furnace. If those are fine, the igniter or flame sensor may have failed, or the furnace may be locked out from a safety switch. A contractor can test each part to find which one stopped it.
- Why is my furnace blowing cold air?
- Air that stays cold usually means the burners never lit, even though the blower is running. A dirty flame sensor is a common cause, since it shuts the gas off as a safety measure when it cannot detect a flame. It can also mean the thermostat fan setting is on rather than auto, which runs air between heating cycles. If the air never warms up at all, a contractor needs to check the ignition system.
- Why won't my furnace pilot light stay lit?
- This usually points to the thermocouple, the small sensor that tells the gas valve a flame is present. When it wears out or sits out of position, it reads no flame and shuts the gas off even though the pilot was lit. A draft near the pilot or a dirty pilot orifice can cause the same thing. A contractor can check the thermocouple and replace it if it is worn.