A Pacific Northwest National Laboratory (PNNL) research team has gained new insights about heat pump water heaters (HPWHs), an energy-efficient technology that extends the benefits of heat pumps to the task of warming domestic water.
A Pacific Northwest National Laboratory (PNNL) research team has gained new insights about heat pump water heaters (HPWHs), an energy-efficient technology that extends the benefits of heat pumps to the task of warming domestic water.
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