Modulating Geo Heat Pump

Schematic of the vertical wells beside the CCHT Reference House

Schematic of the vertical wells beside the CCHT Reference House

One CCHT twin house has been retrofit with a modern, variable capacity geo source heat pump that can emulate the performance of a variety of commercially available designs, including full output, two or more output levels, and full variable operation. The heat pump can make use of up to three existing vertical ground wells at the facility. The energy performance of the heat pump was compared to a high-efficiency condensing gas furnace during the 2011-2012 heating season, and will be compared to a 13 SEER air conditioner in summer 2012.

Funding for this project is provided by: NRCan, CMHC and ecoEII.

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