A furnace almost never quits in mild weather — it waits for the coldest night of the year. In the Big Horn Basin, where January lows dip near zero, a no-heat emergency isn’t just uncomfortable, it can be dangerous. The good news: furnaces usually warn you first. Here are five signs it’s time for a check-up.
1. It’s blowing cool or lukewarm air
If your vents aren’t putting out genuinely warm air, something’s wrong — it could be a failing igniter, a flame sensor, a gas supply issue, or a worn part. It rarely fixes itself.
2. Short-cycling (on and off, over and over)
A furnace that turns on and off in quick bursts is working too hard and wearing out fast. It’s often an airflow, thermostat, or overheating issue that’s cheap to fix now and expensive to ignore.
3. Strange noises or smells
Banging, rattling, or screeching usually means a mechanical problem. A persistent burning or musty smell is worth investigating. And if you ever smell gas or suspect carbon monoxide, leave the home and call us — and your gas utility — right away.
4. Rising heating bills
If your energy bills are creeping up without a change in the weather, your furnace may be losing efficiency. A tune-up often pays for itself.
5. It’s old and overdue for service
Most furnaces last 15–20 years. If yours is older and hasn’t been serviced in a while, a seasonal tune-up catches small problems before they become a midnight breakdown.
Don’t wait for it to fail
The cheapest furnace repair is the one you schedule on your terms — not the emergency call at 11 p.m. in January. A fall tune-up keeps your system safe, efficient, and far less likely to leave you in the cold.
Call Cowboy Heating & Cooling at (307) 272-1437 for honest, upfront furnace service across the Big Horn Basin. And if your heat does go out, we answer 24/7.