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What To Do When A House Fails A CAZ Depressurization Test

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When a house fails a home performance depressurization test, how can an HVAC contractor double-check the results and take corrective action? ACCA’s latest Technical Bulletin explains what combustion appliance zone (CAZ) testing is, why the test is performed, and why home owners need to call another professional to correct any issues.
Learn more about it and all of ACCA’s Technical Bulletins at

Posted In: Building Performance, Residential Buildings

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