gas furnace
Definition
Noun: A gas furnace is a heating device that generates warmth by burning natural gas or propane. It is a common appliance for central heating in residential and commercial buildings.
Usage
A gas furnace operates by burning fuel to heat air, which is then distributed throughout a building via ductwork. It is a specific type of furnace distinguished by its fuel source. * The technician inspected the gas furnace before the cold winter months. * Replacing an old gas furnace with a new, efficient model can reduce energy costs.
Advanced Usage
- High-efficiency gas furnace: A modern furnace designed to extract more heat from the same amount of fuel, often characterized by an Annual Fuel Utilization Efficiency (AFUE) rating above 90%.
- Installing a high-efficiency gas furnace is a significant investment but leads to long-term savings.
Variants and Related Words
- Furnace (n): A general term for an enclosed structure in which heat is produced. A gas furnace is a subtype.
- Gas boiler: A related appliance that uses gas combustion to heat water, which is then used for building heat or hot water, unlike a gas furnace which heats air directly.
Synonyms
- Gas heater
- Gas-fired furnace
Related Phrases
- Furnace filter: A removable component of a gas furnace that cleans the air circulating through the system.
- A clogged furnace filter can cause a gas furnace to work less efficiently.
- Furnace blower: The fan inside a gas furnace that moves the heated air into the ductwork.
- The furnace blower started when the gas furnace ignited.
Noun
-
a furnace that burns gas
