Energy Efficiency Advisor
Rating & Advice
Average
This is standard efficiency. It is cost-effective but won't provide maximum energy savings.
Advisor
Energy Efficiency Advisor
Not sure if your SEER, AFUE, or HSPF rating is good or bad? Input your system's rating below to see how it compares to modern standards.
FAQ
Frequently Asked Questions
What is the difference between SEER, AFUE, and HSPF?
SEER measures the cooling efficiency of air conditioners. AFUE measures the heating efficiency of gas furnaces. HSPF measures the heating efficiency of heat pumps.
What is a good AFUE rating for a gas furnace?
Standard furnaces have an 80% AFUE, meaning 80% of the gas is converted to heat and 20% is lost through the exhaust. High-efficiency condensing furnaces have ratings between 90% and 98% AFUE.
How much energy does a 10-year-old AC use?
A 10-year-old AC likely operates at 10 to 12 SEER due to age and degradation. Upgrading to a modern 16 SEER2 unit can reduce your cooling electricity usage by up to 30%.
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