Serving Planada and Merced County
R-410A refrigerant — the standard in residential AC systems installed from the mid-2000s through 2024 — is being phased out under EPA regulations, with new systems now required to use lower-GWP refrigerants like R-454B. For Planada homeowners with existing R-410A systems, this creates a planning consideration: refrigerant availability and pricing for older systems will change over the next several years. Merced County homeowners whose AC systems are approaching the 10 to 15 year mark should factor refrigerant transition costs into their repair-versus-replace analysis.
Marine-climate HVAC in Merced County favors heat pumps over traditional split systems — mild winters keep heat pump efficiency high while avoiding furnace combustion complexity. Planada homeowners with heat pumps still need annual refrigerant checks, coil cleaning, and defrost cycle verification.
The combination of 570 annual cooling degree days and 5,440 heating degree days means Planada homeowners depend on both systems across the year. Merced County's housing stock, with a median construction year around 1968, contains a large inventory of equipment due for evaluation or replacement.