Question: What is a SEER rating?

SEER stands for Seasonal Energy Efficiency Ratio. It measures air conditioning and heat pump cooling efficiency, which is calculated by the cooling output for a typical cooling season divided by the total electric energy input during the same time frame. A higher SEER...

Question: How are home heating furnaces rated?

Furnaces are rated by the Annual Fuel Utilization Efficiency (AFUE) ratio, which is the percent of heat produced for every dollar of fuel consumed,or how efficiently a furnace converts gas into heating energy. Its AFUE rating is measured as a percentage. Like the...