Proper Load Calculation Determines How Long Your HVAC System Survives
https://penzu.com/p/ddef47d202b77448
An HVAC system typically lasts 15 to 20 years, but that lifespan depends critically on whether it was sized correctly from installation
An HVAC system typically lasts 15 to 20 years, but that lifespan depends critically on whether it was sized correctly from installation