Committee tables opinion on whether ERVs/HRVs must be inside conditioned space

May 12, 2025

The Mechanical Ventilation, Plumbing & Energy Codes Committee tabled an interpretation request from the City of West Richland about whether energy- and heat-recovery ventilators must be installed within conditioned space under sections R403.3.2 and R406 of the Washington State Energy Code.

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The Mechanical Ventilation, Plumbing & Energy Codes Committee of the Building Code Council on May 12 tabled an opinion request from the City of West Richland asking whether energy recovery ventilators (ERVs) and heat recovery ventilators (HRVs) must be installed within conditioned space to qualify for the R406 credit.

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