Heatstack is suited for process heating for zones within large buildings requiring up to 180°F (82°C) water. The highly efficient stand-alone heat pump water heaters require minimal floor space while providing up to 340,000 BTU per hour hot water. They are available in single-phase power models up to 5 tons capacity. All non-modular configurations use R-410A or R-134a refrigerant and provide up to 40 tons capacity.

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