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  2. www.familyhandyman.com › article › how-does-a-gasHow Does a Gas Furnace Work? | The Family Handyman

    Feb 12, 2024 · Burners: Small outlets where gas emits within the furnace and is ignited into even, controlled flames. Igniter: The device responsible for lighting the gas emitted from the burners. Furnace igniters work by creating a spark to cause ignition, or by producing an extremely hot surface that ignites the gas as it passes.

  3. www.carrier.com › how-do-gas-furnaces-workWhat Is A Furnace? How Does a Furnace Work? - Carrier

    A furnace is a key component of a home's heating system that generates heat and distributes it throughout the living space. A gas furnace burns natural gas or propane to create heat. Air from your home enters the furnace, absorbs the heat, and circulates back to your home’s living spaces to provide warm, cozy comfort.

  4. www.youtube.com › watchHow A Gas Furnace Works (Animated Schematic) - YouTube

    The video illustrates how a gas furnace provides heat to a conditioned space.HVACi is part of Alpine Intel’s suite of services. To learn about HVACi visit: h...

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  5. www.hometips.com › how-it-works › gas-furnaceHow a Gas Furnace Works - HomeTips

    Jan 22, 2021 · A gas forced-air heating system goes into action when the thermostat tells it that the room temperature has dropped below a preset comfort level. The thermostat sends a low-voltage electrical signal to a relay in the furnace, which signals a valve to open and deliver natural gas to the burners and for the blower to turn on. The furnace’s ...

  6. www.hvac.com › how-does-a-gas-furnace-workHow Does a Gas Furnace Work? - hvac.com

    Aug 30, 2024 · Once the furnace receives the signal from the thermostat, the ignition sequence begins. If your furnace uses an electronic ignition system, it generates a spark or activates a hot surface igniter to light the gas in the burner. For older models with a pilot light, the gas is ignited by the existing flame. 3. Gas Combustion. Natural gas burns in ...

  7. mepacademy.com › how-gas-furnaces-workHow Gas Furnaces Work - MEP Academy

    Dec 6, 2022 · Pipe size depends on the volume of gas required and the size of the furnace, but for a small residential unit the gas piping might be just a 1/2” (20mm) pipe. The gas valve controls or modulates the flow of gas to the burners. The burners convert the fuel and air into heat that enters the heat exchanger.

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  9. www.therma.com › how-do-furnaces-workHow Does a Furnace Actually Work? Here’s What You Should Know

    Dec 27, 2021 · The igniter heats up or creates a spark and ignites the burner. The gas from the burner creates an even, steady flame. Cold air from the building enters the furnace. The burning gas warms the cool air inside the heat exchanger. The furnace pipes exhaust out of the building through an exhaust pipe. The blower fan pushes the warm air throughout ...