Every new air conditioner is sold with a SEER2 number on the label, but almost nobody explains what that number is testing or why it replaced the older SEER rating. Here is what the test actually measures and where it falls short.
Read MoreTitle 24 comes up in almost every conversation about permitted HVAC work in California, usually without a clear explanation of what it requires or why. Here is the framework in plain terms, and how it plays out for a West LA property.
Read MoreA HERS rater, not your HVAC contractor, is the one who tests your ductwork under California's energy code. Here is what that independent role actually checks and why the separation matters.
Read MoreA heat pump carries two separate efficiency ratings instead of one, since it does two different jobs. Here is how SEER2 and HSPF2 work together, and what West LA's mild winters mean for the heating side of that rating.
Read MoreThe EnergyGuide label on new HVAC equipment carries three different efficiency figures answering three different questions. Here is what each one measures, and why EER2 matters more than most shoppers realize in West LA's climate.
Read MoreSizing equipment by matching whatever came out of the wall skips the calculation that is supposed to determine what your specific house actually needs. Here is what a Manual J load calculation covers and why it is tied to your permit.
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