Altherma
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Air-to-Water Heat Pumps
Should residential designers consider using an air-source chiller for space heating and cooling?
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Split-System Heat-Pump Water Heaters
Japanese ‘Eco Cute’ water heaters will soon be available in the U.S.
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A ‘Magic Box’ For Your Passivhaus
Can Americans buy a combination appliance incorporating an HRV, heat pump, and water heater?