Why Grass Valley Needs a Different Heat Pump Than Sacramento
Modern cold-climate heat pumps produce rated output well below freezing. They are built for zones 5 through 7. That covers Nevada County's climate. A standard unit sized for the Sacramento valley will struggle here. Fresh Air specifies NEEA-certified models to close that gap.
Foothill homes tend to have older insulation and long duct runs. Both raise the heating load. We check ducts on every free estimate. A great heat pump in leaky ducts still falls short. Fixing leaks before install is far cheaper than a unit that never keeps up.