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AFUE stands for Annual Fuel Utilization Efficiency and is a percentage measurement of the furnace’s heating efficiency. The U.S. government's minimum efficiency level is 78% and the Canadian minimum is 90%, but Armstrong Air furnaces go all the way up to 97%. That means 97 cents of every dollar goes to efficient heating.
SEER stands for Seasonal Energy Efficiency Ratio and is a measurement of the efficiency of cooling products. The U.S. government’s minimum efficiency level is 13.0, but Armstrong Air cooling products exceed 18.0 SEER.
Use our Energy Savings Calculator and see how efficiency equates to savings for you.