Central Air Made Easy
– AFUE is a measure of heating efficiency for furnaces. It measures the percentage of the fuel that turns into useful energy compared to the total energy input.
AFUE is an acronym for Annual Fuel Utilization Efficiency.
Decibels: A measure of volume. Normal conversation is 60 dB, a dishwasher around 70 dB, city traffic around 80 dB and a lawn mower approximately 90 dB. Prolonged exposure (8+ hours) to any noise over 85 dB can cause hearing loss.
EER is an acronym for Energy Efficiency Rating.
: The U.S. standard for energy-efficient technology. ENERGY STAR rated air conditioners and heat pumps exceed the federal requirements by up to 20-30%.
: A measurement of energy efficiency for air-source heat pumps and air conditioners. It is the ratio of heat output over the course of the heating season to energy input. The higher the HSPF, the more efficient the unit is.
: Hybrid Heat® systems combine an electric heat pump with a gas-powered furnace and switch between the two depending on the needs of your home to save you money.
: Filter driers remove water and contaminants from the refrigerant coils, which can harm your air conditioner or heat pump’s performance.
: Puron® is a chlorine-free refrigerant that does not contribute to ozone depletion. It also allows for higher SEER ratings than past refrigerants, making it more environmentally-friendly.
SEER: A measure of energy efficiency in air conditioners and heat pumps based on a yearly average. The higher the SEER rating, the more of the energy you put into your unit will come back out as cooling or heating power instead of being lost to the atmosphere. The minimum acceptable SEER for air conditioners in the Northern United States is 13, while the requires 14 SEER. All heat pumps must be 14 SEER, regardless of region.
SEER is an acronym for Seasonal Energy Efficiency Rating.
: A single-stage air conditioner uses one piston to move air through the unit and into your home. Single-stage units are less expensive than two-stage units, but are less energy-efficient.
: The scroll compressor pumps refrigerant through your system. Single-stage compressors work at a single speed to accomplish this task, making them less expensive, although also less efficient at high outside temperatures.
Southern U.S.: “The South” for HVAC purposes are those states where 14 SEER is the minimum efficiency requirement for new air conditioners and heat pumps. This currently includes the states of: Alabama, Arizona, Arkansas, California, Delaware, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, Nevada, New Mexico, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, and Virginia.
: Refrigerant tons are a measurement of cooling capacity. A one-ton system can remove 12,000 BTUs of heat from your home every hour; a 2-ton system can remove 24,000 BTUs, and so on.
: The scroll compressor pumps refrigerant through your system. Two-stage compressors have, in effect, a “high” and “low” speed setting, making them more expensive than single-stage compressors, but also more energy-efficient, especially at high outside temperatures.
: The blower motor moves heat from your furnace into your ductwork and throughout your home. Variable speed motors control the rate at which the heat is distributed according to the needs of your house, making the furnace more energy-efficient.