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cedar91

Utility Cost Savings and Near Zero Carbon: Come see what an array of renewable energy and energy efficiency projects can do for an existing dwelling.

What You Need to Know

Description:

To complement the PV power system, a Water Furnace 7 Series Continuously Variable GSHP was installed. This system includes a closed loop, horizontally-trenched Ground Heat Exchange (GHEX) pipe, with 5 x 125' trenches, 5000' of pipe, unpressurized variable speed flow center, slaved to the GSHP system. De-superheater DHW, MERV11 Air Filter and Performance monitoring options.

Other Benefits:

Replaced noisy external compressor unit, freed space adjacent to house.

Maintenance Requirements:

Semi-annual filter replacement, had to add some water to flow center.

Efficiency or Sustainability Improvements:

External sun screen, lighting upgrade to LEDs, upgraded interior blinds, insulated garage door, bamboo flooring, upgraded windows, etc.

My Motivation:

(1) Sustainable future concern (2) Energy cost savings

Advice:

Had to go beyond local contractors to get significant systems. Some extra effort and time required to work with Building and Safety, due to uniqueness of system.

Experience with Installer:

Excellent team. Worked with me on hiring local backhoe operator. Primary goal was to obtain most efficient system available.

Additional Notes:

Due to lack of local climate/soil data, I did extensive research prior to signing the contractor. Trenching was very challenging due to step slopes and tough digging (decomposed granite).

Open House Info:

9:00 AM to 5:00 PM on Saturday, 3 October 2015 and Sunday, 4 October 2015, The house is on a ridge several hundred yards off of Munz Ranch Rd on a private road. Limited parking right at the house, but we will ask neighbors to assist in providing overflow parking.

View Other Case Studies
$3,208
annual savings
1720 Federal Colonial Rehab - Weymouth - MA
1720 Federal Colonial Rehab - Weymouth - MA

Residential|High Efficiency HVAC

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