If you’re east of US 1, look for outdoor condensers with treated coils (Carrier WeatherShield, Trane Spine Fin protection, Daikin OceanMaster). Standard aluminum coils corrode in 5 8 years near the ocean.

We also recommend a quarterly coil rinse with fresh water for any home within 2 miles of the Intracoastal it doubles outdoor unit lifespan.