CAE (Coefficient of Annual Efficiency) measures the heat output of a unit relative to the cost of fuel used. It helps assess the cost-effectiveness of heating systems.

What is Combined Annual Efficiency?

CAE measures the heat output of a unit relative to the cost of the fuel used, applying to both air and water heating. It helps determine the cost-effectiveness of systems like furnaces and heat pumps.

CAE, AFUE, and HSPF

CAE is related to AFUE, which measures furnace efficiency, and HSPF2, which measures heat pump efficiency. Higher values in these ratings indicate better efficiency and cost savings.

Benefits of High Combined Annual Efficiency

Choosing high-efficiency systems can lead to energy savings, reduced environmental impact, enhanced comfort, and potential eligibility for federal tax credits.