Household Air Source Heat Pump: 1.Heat pump for spas and pool 2.energy saving and ... R410ACOP above 3.6CE, ROHS, GMC, 3C approvalHigh efficiency heat exchanger and low cost, 75% energy saving.Technology parameters:Model HA ... to the product nameplate. We specialize in heat pump water heater, air source heat pump, air to water heater, and OEM ... and good after-sales services. Household Air Source Heat Pump