Energy and Thermal data for Our Southington Residence - WEL0444

Our Southington Residence : Southington, CT USA

We have a ground source heat pump (GSHP) Envision Series from WaterFurnace that was installed in the fall of 2008 to heat & cool our home. The system has a closed loop with a pressurized GeoLink Flow Center FC2-FPT with two Grundfos pumps (TYP UP 26-99) and 3 vertical bores at 225 feet each with 1.25'' HDPE pipe. The geothermal loop is running with methanol diluted at 20%. The GSHP is controlled by a TZ-4 TotalZone Zone Control panel from Honeywell. The Envision unit is running with the IntelliStart component to preserve the life of the compressor,reduce light flicker, and diminish start-up noise from the unit by reducing the start-up current to just 30% of normal starting amperage.

We also have a Marathon (MR50245) 50 Gallon 4500 Watts Electric Water heater.

Our house was built in 2002. The house is 2500 square feet with 2'' by 6'' framing on exterior walls and R19 insulation. The attic has R49 insulation. The basement floor joists were recently insulated with R19 insulation. The house has Andersen Windows with high performance glass. We also installed recently solar panels in our roof. A total of 40 panels were installed. This array will provide over 90% of our power needs. We also Aerosealed our ductwork and were able to cut the air leakage by 90 %.

The geothermal heat pump replaced an inefficient Hallmark oil fired furnace. The Marathon water heater replaced a Bock oil water heater. We have cut our dependency on fossil fuels as we no longer need oil to heat our home or our domestic hot water.

The WEL is helping us get a better understanding of how our system is performing and helps us monitor in greater detail our temperature sensor data and monthly heating and cooling costs.

(Posting since 2010)

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