What Brentwood's climate does to your system
The lower streets keep some ocean influence while the canyons above turn hot and still, so one city carries two different cooling loads and a single sizing assumption fits neither well. Wind events drive smoke and fine ash down those canyons in fire season, which puts duct tightness and filtration on the list alongside capacity. That heat load, dust, and long run time is exactly what we build into every smart thermostat visit before we open the equipment, especially anything specific to Brentwood and the Westside of Los Angeles.