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HVAC Glossary · Money, Code & Permits

What is an AHRI Certificate (Matched System)?

An AHRI certificate is a record from the AHRI Certification Directory listing the certified efficiency ratings, such as SEER2, EER2 and HSPF2, for one specific combination of outdoor unit, indoor coil or air handler, and sometimes furnace. Each matched combination has its own AHRI reference number, so a mismatched pairing may not carry the advertised rating.

Definition

An AHRI certificate is a record from the AHRI Certification Directory listing the certified efficiency ratings, such as SEER2, EER2 and HSPF2, for one specific combination of outdoor unit, indoor coil or air handler, and sometimes furnace. Each matched combination has its own AHRI reference number, so a mismatched pairing may not carry the advertised rating.

Also called: AHRI reference number, AHRI Certificate of Product Ratings

Why it matters to you

Efficiency-based incentives in this market, including Clark Public Utilities' heat pump programs and Energy Trust of Oregon offers, depend on the installed equipment meeting the program's requirements, and rebate programs and tax forms often ask for the AHRI reference number to document a matched system's ratings. It also lets you compare quotes on the exact combination being installed, not just the outdoor unit's brochure number.

Practical guidance

Ask for the AHRI reference number for the exact matched system on your quote and keep a copy of the certificate with your invoice and model numbers. If a contractor swaps any component before install, ask for the updated certificate.

About this definition

Written by the Home Energy Group team — a family-owned HVAC company celebrating 25 years of comfort & care across SW Washington and the Portland metro, licensed in Washington (WA LIC# HOMEEGI003J7) and Oregon (OR CCB# 184255). Definitions inform; an on-site diagnosis decides.

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