Day & Night® Air Conditioners, Heat Pumps & Gas Furnaces
Day & Night Heating and Cooling Products. Designed with homeowners in mind.
Day & Night systems are built for quiet operation, reliability, and durability. You get the benefit of the latest technology and a heritage of quality in systems that deliver maximum comfort to your home.
Day & Night energy efficiency ratings of AFUE (Annual Fuel Utilization Efficiency) in heating, SEER (Seasonal Energy Efficiency Ratio) in cooling, and HSPF (Heating Seasonal Performance Factor) in heat pumps, meet or exceed federal standards. The higher the AFUE, SEER, or HSPF, the greater the energy savings. Click Energy Savings to see charts of calculated savings.