The home is a test bed for a variety of HVAC devices:
-Main floor heating and cooling: ECR DX 4-ton geothermal.
-Original heating throughout the house: baseboard hot water. Now fired by a Monitor Products FCX condensing oil boiler.
-Additional main floor heating/cooling: Fujitsu 12RLS mini-split heat pump
-Additional basement heating/cooling: Fujitsu 12RLS mini-split heat pump
-Stirling Systems energy recovery ventilator.
This is a test case for a potential wider scale implementation of WEL for monitoring the performance of a number of home energy efficiency retrofits.