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New Products

Daikin ALTHERMA 3 H HT air-to-water heat pump

The air-to-water heat pumps extract heat energy from the outside air and transfer it to water for space heating and optional domestic hot water.

Daikin ALTHERMA 3 H HT air-to-water heat pump
Image courtesy of Daikin.
April 27, 2026

The Daikin ALTHERMA 3 H HT provides a 3-in-1 plumb-and-play solution that can provide heating, cooling and optional hot water, even in low-ambient temperatures. That adaptability makes it an option for replacing fossil fuel equipment like boilers, furnaces, and gas domestic hot water (optional). The compressor developed by Japan’s Daikin Technology and Innovation Center and Daikin Europe can deliver high-leaving water temperatures as high as 158°F (70°C). It utilizes low-GWP R-32 refrigerant that releases fewer CO2 emissions than R-410A. Engineered for extreme climate applications, the Daikin ALTHERMA 3 H HT can operate down to -18°F (-28°C) while still delivering space heating and optional domestic hot water. It can provide cooling even when outdoor temperatures reach 109°F (43°C). 

Daikin ALTHERMA 3 H HT is an all-electric air-to-water heat pump that can provide home heating and optional domestic hot water without burning fossil fuels directly by the system. Daikin ALTHERMA 3 H HT air-to-water heat pumps extract heat energy from the outside air and transfer it to water for space heating and optional domestic hot water. ALTHERMA 3 H HT’s air-to-water heat pump technology can also reverse its cycle, chilling water to cool a home. 

To learn more, visit https://www.northamerica-daikin.com/.


KEYWORDS: air-to-water heat pumps new products sustainability

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