Do high efficiency furnaces have pilot lights?
Do high efficiency furnaces have pilot lights?
Hot Surface Ignition: Furnace Ignition | High-Efficiency Electronic Ignition Gas Furnaces. The Hot Surface Ignition Furnace has no pilot light. It lights the burners direct. Therefore it is also referred to at times as Direct Ignition.
What kind of ignition system does a gas furnace use?
The electronic ignition system in a gas furnace is a modern development that provides more reliable performance than a standing pilot and offers energy savings through better furnace efficiency. There are two basic types of electronic ignition systems: An intermittent pilot system uses an electronically controlled…
Where is the igniter located in an ignition furnace?
Continue to 4 of 5 below. The hot surface ignitor (HSI) is the most commonly used electronic ignition system. It works like a light bulb filament, heating up when electricity is passed through it. Most are made from silicon nitride or silicon carbide. The igniter is located in the flow of gas entering the burners.
What kind of ignition does an induced draft furnace use?
Induced draft furnaces use either an intermittent pilot (IP) or hot surface ignition (HSI) instead of a standing pilot light. The combination of electronic ignition, electronic controls, and artificially created draft improves the efficiency of induced draft furnaces over older conventional models.
Who is the electrical contractor for a gas furnace?
Larry Campbell is an electrical contractor with 36 years of experience in residential and light commercial electrical wiring. The electronic ignition system in a gas furnace is a modern development that provides more reliable performance than a standing pilot system, offering energy savings through better furnace efficiency.
What kind of ignition system does a furnace use?
Today’s furnaces ignite the gas through different technologies, known collectively as electronic ignition systems. Depending on its age, your furnace might have one of the following three types of ignition methods. You’re probably familiar with a standing pilot light, the little blue flame that sits in front of one of the furnace burners.
How to turn on an electronic ignition furnace?
How do electronic ignition furnaces work? 1 Set the thermostat on your furnace to its lowest setting. 2 Remove the access panel covering the gas control knob. 3 Turn the gas control knob to the OFF position. 4 Turn the gas control knob or knobs to the ON position. 5 Turn the electrical power to the furnace back on.
Induced draft furnaces use either an intermittent pilot (IP) or hot surface ignition (HSI) instead of a standing pilot light. The combination of electronic ignition, electronic controls, and artificially created draft improves the efficiency of induced draft furnaces over older conventional models.
Where is the igniter located on a furnace blower?
The igniter is positioned in the flow of gas entering the burners. When the thermostat calls for heat, 24 volts are sent to the electronic ignition control module, which energizes the furnace blower and other systems and sends 120 volts to the HSI.