Residential Air-Source Heat Pumps (ASHPs) and Central Air Conditioners
Residential Air-Source Heat Pumps and Central Air Conditioners must meet Canada's Energy Efficiency Regulations before they can qualify for the ENERGY STAR symbol in Canada.
Air-Source Heat Pump
consists of one or more factory-made assemblies that normally include indoor conditioning coil(s), compressor(s), and outdoor coil(s), that provide space heating and cooling. This definition excludes such equipment as window and packaged terminal heat pumps. The air-source heat pump may be a single packaged system with only one assembly, or a split system with two or more assemblies.
Central Air Conditioner
consists of one or more factory-made assemblies that normally include an evaporator or cooling coil(s), compressor(s) and condenser(s). Central air conditioners provide space cooling and may provide air circulation and dehumidification. This definition excludes such equipment as window or packaged terminal air conditioners. The central air conditioner may be a single packaged system, with only one assembly, or a split system with two or more assemblies.
A single package unit is an ASHP or central air conditioner that combines condenser, evaporator, and air handling capabilities in a single casing. Air is circulated in the building by a system of ducts.
A split system is an ASHP or central air conditioner with separate indoor and outdoor units. Air is carried to and from the rooms by a system of ducts. For split system equipment, the energy, efficiency ratings of a particular split system are based on the actual condenser-evaporator coil combination of the split system (i.e., they are a matched assembly).
Gas/Electric Package Unit
A single package unit with gas heating and electric air conditioning that is often installed on a slab or a roof. Air is treated at a central location and carried to and from the rooms in a house by one or more fans and a system of ducts. Single package units with electric air-conditioning and gas heating cannot qualify for ENERGY STAR in Canada.
Heating Seasonal Performance Factor (HSPF)
a measure of a heat pump's energy efficiency over one heating season. It represents the total heating output of a heat pump (including supplementary electric heat) during the normal heating season (in Btu) compared with the total electricity (in watt-hours) consumed during the same period. HSPF is calculated based on tests performed in accordance with CSA C656-05.
Seasonal Energy Efficiency Ratio (SEER)
a measure of equipment energy efficiency over one cooling season. It represents the total cooling output of a central air conditioner or heat pump during the normal cooling season (in Btu) divided by the total electricity (in watt hours) consumed during the same period. SEER is calculated based on on tests performed in accordance with CSA C656-05.
Energy Efficiency Ratio (EER)
is a measure of the steady-state energy efficiency of cooling. EER is the rate of heat energy removal (e.g. cooling) by the equipment in Btu/h divided by the of energy input to the equipment in watts. EER is expressed in Btu/h per watt (Btu/h/watt). EER is determined by testing in accordance with CSA 656–05.
Performance standard for split-system and single-package central air conditioners and heat pumps.
Region IV – U.S (heat pumps only)
Region V - Canada
(for heat pumps only)
|Air Source Heat Pumps|
|Split Systems||>= 14.5||>= 12.0||>= 8.2||>= 7.1|
|Single Package Equipment||>= 14.0||>= 11.0||>= 8.0||>= 7.0|
|Central Air conditioners|
|Split Systems||>= 14.5||>= 12.0|
|Single Package Equipment
||>= 14.0||>= 11.0|
Is a model combination that has been rated for SEER‚ EER‚ and HSPF and reported to Natural Resources Canada. The components use for determining the ratings shall be installed simultaneously. The matched assembly shall also include the air handler or furnace that is used to determine the rating according to CSA C656-05.