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A/C services


Cassell Brothers Heating & Cooling reviews


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HVAC Ratings

heating and air ratings


Annual Fuel Utilization Efficiency (AFUE) is a rating that reflects how efficiently a gas furnace converts fuel to energy. An AFUE of 90 means that approximately 90% of the fuel is utilized to provide warmth to your home, while the remaining 10% escapes as exhaust.


Heating Seasonal Performance Factor (HSPF) refers to the efficiency of the heating mode of heat pumps over an entire heating season. The higher the number, the more efficient the unit.


Seasonal Energy Efficiency Ratio (SEER) is a rating that measures the cooling efficiency of a heat pump or air conditioner. The higher the number, the more efficient the unit.


Seasonal Extreme Environmental Test (SEET) is the American Standard testing facility for heating and air conditioning systems where the equivalent of five years of operation is condensed into 16 weeks of testing under harsh conditions. American Standard Heating & Air Conditioning wants to ensure your new system will be as reliable as possible.

Proudly serving heating and air customers in Columbia, Irmo, Lexington, Chapin, and West Columbia, South Carolina.