Furnaces Terms & Phrases
The HVAC industry has a Furnace Terms & Phrases may not be familiar to you. These are common terms and phrases used between experienced HVAC experts. Learning common furnaces terms & phrases will help you properly communicate your needs to an HVAC technician as well as better understand the literature that came with your air conditioner, humidifier, and furnace.
Note that the list below is appended to focus on terms that you may encounter.
COMMONLY USED FURNACE TERMS & PHRASES
The appliance/mechanism that dehumidifies and extracts
The motor that drives the fan blades that circulate air over the heat exchanger and throughout your home.
British Thermal Unit (BTU)
To raise one pound of water one degree Fahrenheit, you need one BTU of energy. It is commonly used to express the rate of cooling/dehumidifying/heating for HVAC systems (ie – a portable air conditioner is rated at 5,000 BTU’s).
Cold air return
A large vent, typically mounted where the floor meets the baseboard. The cold air return acts as the intake for a furnace system, enabling the furnace to draw ambient air from inside the home down to be heated and then recirculated.
A component inside an air conditioner that removes heat from the system. A condenser can transfer heat to air or an intermediate fluid.
A network of ducts direct air from the furnace throughout the home.
The most visible part of your home’s HVAC system. A furnace heats air by combustion (in natural gas or propane furnaces) or via heat coils (electric furnace).
Part metal chamber, part passageway, the heat exchanger extracts heat from the hot air generated by the burners in your furnace. The blower motor (or fan) actively pushes air over the heat exchanger, and it subsequently circulates the resulting warmed air throughout the home.. Many high-efficiency furnaces have two heat exchanges to maximize the amount of heat extracted from a given amount of fuel.
Many natural gas furnaces rely on a pilot light for ignition, and it’s essential to regularly check them to ensure they are functioning correctly
Typically, homeowners mount this device in a centralized location within their homes to enable them to regulate the indoor air temperature. There are many different types of thermostats that will facilitate different functions, but all accomplish the same general purpose of sending a signal to the furnace when temperatures have dropped below the specified limit.
For a more complete list please visit:http://en.wikipedia.org/wiki/Glossary_of_HVAC_terms.
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