Geothermal Radiant Floor Heat - Retrofit - Sanbornton - NH

Single-Family Residence - October 2010

It is comfortable and quiet all the time.

Quick Facts

Energy Needs Met

100%

or more of space heating

Property

Owner:: Scott Piddington
Type:: Single-Family Residence
Address:: 45 Kaulback Road, Sanbornton, NH 03269
Size:: 815 sq ft
Energy need met:: 100% or more of space heating
Designations:: Deep energy retrofit
Event Participation:: NESEA Green Buildings Open House 2013 Host

Technology

Type:: Geothermal
Installed:: October 2010
Size of System:: 25000 BTU
Purposes:: For space heating

Financial Details

Gross Cost of System:: $22,532
Additional Financial Notes:: Half the cost was to drill my well from 200 feet to 500 feet deep and upgrade the pump and controller. This provides me with a much better water supply.

Professionals & Suppliers

Products:: WaterFurnace
Installers:: Seely Plumbing, Heating, & Air Conditioning; Gilford Well Company

What You Need to Know

Description:

This is a geothermal radiant floor system. The heat pump uses water from my domestic water well. The well was drilled an additional 300 feet from 200 to no 500 feet deep. I installed the radiant heat plates and PEX tubing under the floors myself. I also installed the insulation. Professionals made all the connections. We also repurposed my old 40 gallon gas fired hot water tank as the geothermal heat storage tank.

Maintenance Requirements:

Periodically a spin-down filter needs to get cleaned.

Efficiency or Sustainability Improvements:

I sealed the attic, sills, floors, window frames & door frames. I had foam insulation injected into the walls bringing them to R-16. I added insulation in the attic, now up to R-49.

My Motivation:

I want to stop using fossil fuels. My goal is for the house to be net zero. It's not quite there but it is close.

Open House Info:

From exit 20 on I-93 head N&E on US-3 & NH-11 for 4.8 miles. Turn Left at light onto Bay Rd. Go 0.5 miles. Turn right onto Lower Bay Rd. Go 3.2 mile. If you think there is a fork in the road, bear right. (It turns to dirt at about 3.1 miles.) Turn right onto Kaulback Rd (dirt). 3rd drive on right. WARNING: Some GPS systems puts my address on an undriveable abandoned road in the middle of the woods about a mile away. PS. I am a terrible housekeeper but the energy stuff is cool.

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