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   Solar Domestic Hot Water
   Airhandler, HRV
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Airhandler Unit (replaces conventional furnace)

The air-handler selected for use in the Drake Landing solar homes has a larger heat exchanger surface, an integrated heat recovery ventilator (HRV) to efficiently bring in fresh, outdoor air, and uses high efficiency, variable speed motors (ECM™ – electronically commutated motor – from General Electric) to drive both the main blower and the ventilator. The ability to automatically vary the blower speed as heating conditions change is required to achieve resident comfort.

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