SEER vs HSPF Calculator — Heat Pump Savings

What is an AHRI match or AHRI certification?

An AHRI match is a specific indoor + outdoor equipment combination (coil, air handler, condenser) that AHRI has certified to perform at published SEER2/EER2/HSPF2 ratings when installed together. Utility rebates, tax credits, and manufacturer warranties usually require a certified match with a valid AHRI reference number, because a mismatched coil and condenser will not hit the rated efficiency — compare only certified-match ratings in this calculator.

Related questions

• What is the difference between SEER and SEER2?
• Is a higher SEER2 worth the cost?
• What does HSPF2 measure?
• How do I look up an AHRI reference number?