Heat Pump retrofit triples the energy efficiency of your water heater

Air Tap is a hot water heater retrofit heat pump.  It cuts your hot water heating energy consumption by 70%, and only costs $700, so the typical family of 4 will recoup costs in less than 2 years.

Heat pumps use the latent energy from the air to heat the water, and are inherently 2-5 times more efficient than other methods of heating.  It works well in the Seattle climate since our temperatures are pretty mild year round.

Pretty cool.

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