Pilot
Definition and meaning of Pilot in real estate.
A pilot is a device used in gas-fired heating systems and appliances to ignite the main burner. It can consist of a small, continuously burning flame, known as a standing pilot, or an electronic ignition system that generates a spark or heat when required.
In more detail
In older home heating systems, water heaters, and gas stoves, a standing pilot flame burns constantly to ensure the appliance can ignite instantly when the thermostat calls for heat. Modern residential appliances typically replace the standing pilot with electronic ignition systems, such as hot-surface igniters or intermittent pilots, to improve safety and energy efficiency.
These electronic systems only consume gas when the appliance is active, preventing fuel waste. During a home inspection, inspectors verify the function of the pilot or electronic igniter to ensure the heating system operates safely and effectively. A malfunctioning pilot is a common reason for a lack of hot water or heat in a home.
Key facts
| Category | Property Types & Construction |
|---|---|
| Types | Standing pilot (continuous flame) and electronic ignition (intermittent) |
| Commonly found in | Furnaces, boilers, water heaters, and fireplaces |
| Safety feature | Thermocouple or flame sensor to shut off gas if the flame goes out |
A homeowner calls a technician to service a gas furnace because the pilot system is failing to ignite the main burner when the thermostat is turned up.
Frequently asked questions
How does electronic ignition compare to a standing pilot?
Electronic ignition is much more energy efficient because it does not require a constant flame, saving money on utility bills and reducing greenhouse gas emissions.
What happens if a standing pilot goes out?
If a pilot flame goes out, a safety sensor called a thermocouple detects the temperature drop and automatically shuts off the gas supply to prevent a gas leak.