Cold climate air-to-water heat pumps—Part 2, 2016-07-27

Cold climate air-to-water heat pumps—Part 2, 2016-07-27

Last month, in the first part of this article we discussed the rationale and emerging market potential of air-to-water heat pumps designed for cold climate applications. We also took a look at the enhanced vapor injection (EVI) refrigeration cycle that allows these heat pumps to operate at sub-0º F temperatures with reasonable performance. This month we’ll look at the technical issues associated with applying these heat pumps. Performance variations The heating capacity and coefficient of performance of any heat pump are strongly dependent on the . . ..

An emerging renewable heat source for North American hydronic systems.

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Cold climate air-to-water heat pumps—Part 2, 2016-07-27

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