HVAC equipment, from condensers to gas furnaces to AC units, is rated for efficiency based on the Seasonal Energy Efficiency Ratio (SEER) ratings. SEER2 refers to Seasonal Energy Efficiency Ratio 2, the amount of heat the conditioned space emits during the cooling season.
You can compare it to your vehicle’s fuel efficiency, although in this case, you’ll be referring to the comfort you can get for every dollar you spend on energy, not the distance each gallon covers. Like the miles per gallon rating, you’ll strive for a higher number. A higher SEER rating means a smaller carbon footprint with your conditioning equipment and energy bill savings.
The new SEER2 guidelines cover the following products:
• AC Condensing Units – This is a split HVAC system’s outdoor component, usually paired with an air handler and coil, to form a split AC unit.
• Heat Pumps – They tap into the indoor-outdoor temperature difference to regulate temperatures within the home.
• Evaporator Coil – The heat pump or AC component that absorbs heat, often beside the air handler.
• Single Packaged Units – This comprises all central air conditioning unit components outside the home.
• Gas Furnaces – SEER regulations also cover these vital heating components.
The SEER2 standards affect your choice of home equipment. In the next sections, you’ll learn about the changes that have taken place and how the regulations come into play when you’re planning to upgrade the components of your residential or commercial HVAC system.