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AFUE
Annual Fuel Utilization Efficiency. A measure of a furnace's heating efficiency.
The higher the AFUE percentage, the more efficient the product. The US
government's established minimum AFUE rating for furnaces is 78%.
Air
Handler
The indoor
part of a central air conditioning or heat pump system that moves cooled or
heated air throughout the ductwork of your home. An air handler is usually a
furnace or a blower coil.
Btu
That's the amount of heat required to raise one pound of water by one degree
Fahrenheit. What that means is the higher the Btu rating, the more heating
capacity of the equipment.
Btuh
British
Thermal Units per Hour - The amount of heat required to raise the temperature of
one pound of water one degree Farenheit.
CAE
Combined Annual Efficiency is a measure of the amount of heat produced for every
dollar of fuel consumed for both home heating and water heating.
Carbon
Monoxide
An odorless, poisonous, flammable gas produced when carbon burns with
insufficient air. Deadly to humans.
CFM
Cubic feet per minute. A standard measurement of airflow.
Compressor
The part of the outdoor air conditioner or heat pump that compresses and pumps
refrigerant throughout the system.
Condenser
Coil
The outdoor portion of an air conditioning or heat pump system that serves as a
heat transfer point for dispelling heat to the outside air, as in an air
conditioner or heat pump in the summer; or for collecting heat from the outside
air, as in a heat pump in the winter.
Damper
Located in ductwork, this regulates airflow. Effective in controlling airflow
for zoning.
db
Decibel, a unit of intensity of sound.
Ductwork
The method by which air is channeled from the furnace or the blower coil
throughout your home.
Evaporator
Coil
The part of a heat pump or air conditioning system that is located inside the
house in the air handler. It is here that the refrigerant evaporates as it
absorbs heat from the air that passes over the coil.
FAQ
Frequently Asked Question, also used to mean a list of frequently asked
questions.
Heat
Exchanger
Located in the furnace, the heat exchanger transfers heat to the surrounding
air, which is then pumped throughout the home.
Heat
Pump
An HVAC unit that heats or cools by moving heat.
HSPF
Heating Seasonal Performance Factor. A measure of heat pump heating efficiency.
The higher the rating, the more efficient the heat pump. The US government's
established minimum HSPF rating for furnaces is 6.8%.
Humidifier
Equipment that injects moisture into heated air as it passes from the furnace
into the ductwork to be distributed throughout the home.
HVAC
Heating, Ventilation, and Air Conditioning.
ISO 9000
A family of international standards for quality management and assurance.
Refrigerant
Lines
Two cooper lines that connect the outdoor air conditioner or heat pump to the
indoor evaporator coil.
SEER
Seasonal Energy Efficiency Ratio. A measure of cooling efficiency for air
conditioners. The higher the SEER, the more energy efficient the unit. The
government's minimum SEER rating is 10.
Single
Package
A heating and cooling system contained in one outdoor unit.
Split
System
A combination heat pump or air conditioner with indoor components such as a
furnace or blower coil. Split systems should be matched for optimum efficiency.
Thermostat
Usually found on an inside wall, this device operates as a control to regulate
your heating and cooling equipment so that you can adjust your home comfort at
the touch of a switch.
Ton
Unit of measurement for determining cooling capacity. One ton equals 12,000 Btuh.
Zoning
The ability of partitioning a home into various zones, thereby providing the
opportunity to control comfort levels in each zone.
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