The heating cycle is the sequence of operations a heating system follows to raise indoor temperature. A furnace ignites, warms the heat exchanger, and a blower distributes warm air; a heat pump transfers outdoor heat indoors. The thermostat starts and stops the cycle to maintain comfort.
/ˈhiːtɪŋ ˈsaɪkəl/
The heating cycle is the sequence of operations a heating system follows to raise indoor temperature. A furnace ignites, warms the heat exchanger, and a blower distributes warm air; a heat pump transfers outdoor heat indoors. The thermostat starts and stops the cycle to maintain comfort.
What happens during a heating cycle?
The system generates or transfers heat, circulates warm air, and shuts off once the thermostat setpoint is reached.
Source: The Cooling Company
Thermostats trigger heating cycles to maintain indoor comfort.
On a cold morning, a thermostat calls for heat and the system cycles on and off to keep the home at the set temperature.
Replace filters and schedule seasonal tune-ups to keep heating cycles efficient and safe.
“Replace filters and schedule seasonal tune-ups to keep heating cycles efficient and safe.”
Modern systems use variable-speed fans and modulating burners to smooth heating cycles.
Why does my heating system cycle on and off so often?
Frequent short cycling can be caused by oversizing, dirty filters, or thermostat issues.
Is short cycling bad for my furnace?
Yes. It wastes energy and increases wear on components.
How can I improve heating cycle efficiency?
Use a programmable thermostat, replace filters, and schedule annual service.
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