How do Furnaces Work?

A furnace is a heating system designed to warm indoor spaces by generating heat and distributing it through the home. Here's how a typical furnace works:

  1. Thermostat Signals Heating Need
    When the indoor temperature drops below the thermostat setting, the thermostat sends a signal to the furnace to start the heating process.

  2. Ignition of Fuel
    Furnaces commonly use natural gas, propane, oil, or electricity as fuel. In a gas or oil furnace, the system ignites the fuel in the burner assembly to create heat. Electric furnaces use electric heating elements instead.

  3. Heat Exchange Process
    The burners heat a metal heat exchanger within the furnace. The heat exchanger warms the air without direct contact with combustion gases, ensuring safe heating.

  4. Blower Fan Circulates Warm Air
    A blower motor activates to push air across the hot heat exchanger, warming the air before it is distributed.

  5. Ductwork Distributes Warm Air
    The heated air is blown through the home's ductwork and out through vents into living spaces.

  6. Exhaust Venting
    Combustion gases produced in the burner are vented safely out of the home through a flue or vent pipe.

  7. Cycle Ends When Desired Temperature Reached
    Once the thermostat senses the home has reached the set temperature, it signals the furnace to stop heating until needed again.

This cycle repeats to maintain a comfortable indoor temperature during cold weather. Proper maintenance and regular inspection ensure the furnace operates efficiently and safely.

When your furnace breaks down in Central Oregon, you need fast, reliable repair to keep your home warm and comfortable. At Second Wind Heating and Cooling, our skilled technicians specialize in furnace repair services designed to restore your heating system efficiently and affordably. We work on all makes and models, diagnosing problems accurately and fixing issues ranging from pilot light troubles and thermostat failures to blower motor repairs.

Don’t let a malfunctioning furnace leave you in the cold—our team provides prompt service, thorough inspections, and transparent estimates so you understand the repair process every step of the way. Trust Second Wind Heating and Cooling for expert furnace repair that ensures your home stays cozy all winter long. Contact us today to schedule your service and experience peace of mind with Central Oregon’s trusted heating experts.

Next
Next

Repair your Heater