Posted by:


NGBS Emerald Certified Home: Geothermal Heat Pump

What You Need to Know


Geothermal heat pump Emphasis on Indoor Air Quality, Water Efficiency & Energy Efficiency. Geothermal Heat Pump and Heat Recovery Ventilator. Renewable Energy purchased through NHEC's renewable choice program. All WaterSense (low flow) plumbing fixtures and dual flush toilet. 90% of lighting fixtures use LED bulbs or are LED fixtures/10% CFL. Air Sealing with Owens Corning Energy Complete latex spray foam (Greenguard for Children and School certified). Insulation is BIBs system with Certainteed (no formaldahyde) blown-in fiberglass. Energy Star certified (score of 5+) Waterfurnace Geothermal System for heating and cooling. Marathon hot water tanks with desuperheater. HERS score of 47. Rainbarrel collection systems for outdoor water use. All sustainable flooring (cork, bamboo, reclaimed heart of pine, and porcelain tile with recycled content). Kitchen cabinets by Executive Kitchens, sustainable wood, low VOC coatings. Kitchen counters by Cambria + Richlite. Pine ceilings are from locally grown, milled and finished wood. ICF Foundation & Huber Zip System Wall and Roof sheathing. This mountain lodge style house bordering the White Mountain National Forest has 4 bedrooms and 3 1/2 baths. It is NAHB National Green Building Standard verified Emerald level

Other Benefits:

We monitor our electricity use with the TED 5000 and visitors are fascinated to see usage in "real-time" as the geothermal operates. the system helped us achieve a HERs of 40. It also provides very even heating and cooling

Efficiency or Sustainability Improvements:

Loose Fill Fiberglass air PLUS, Energy Star Appliances, Energy Star rated, Local Materials, NGBS (National Green Building Standard) Certified, Non-Toxic Products, Rain Barrels, Recycled Materials, Water Sense

Experience with Installer:

We had a lot of information and compared several installers. we were very satisfied with AGB systems.

Additional Notes:

The house has a 40 HERs score and is NGBS Emerald certified. We initially wanted solar and designed the house orientation and roof for it but we just had too much shading. Geothermal was a good 2nd option. we have Renewable choice with our utility NHEC and offset 500kwh/ month with renewable energy credits.

Open House Info:

A slideshow will be available of the building process and samples of products used. Examples and technical specifications on products will be available.

View Other Case Studies

Solar Energy House - Maynard - MA: Solar Space Heating
annual savings
Solar Energy House - Maynard - MA: Solar Space Heating

Single-Family Residence|Solar Space Heating

Solar Energy House - Maynard - MA: Solar PV
annual savings
Solar Energy House - Maynard - MA: Solar PV

Single-Family Residence|Solar PV

Search for Other Case Studies

The EnergySage Marketplace

Get the best deal on solar.