Featured Weatherization Project: Jacob and Michelle, Lyman NH

October 16, 2014

This article originally appeared in the October issue of the Green Energy Times.  This article and the entire issue is available online here: http://www.greenenergytimes.net/2014/10/15/weatherization-in-new-hampshire-easy-and-affordable-2/

 

Jacob and Michelle own a home in Lyman, NH. The home is post-and-pier construction and is heated by a kerosene furnace and a wood stove. Jacob and Michelle enrolled in the Home Performance with Energy Star program through Public Service Company of New Hampshire.

 

During the initial energy audit, the blower door test in the 1,190 square foot home measured 5,541 cubic feet per minute (CFM50) of air flow. After air sealing and insulation improvements were completed, the final blower door test measured 3,800 CFM50. This is a substantial reduction in uncontrolled air leakage and heat loss in the home.

 

The floor of the home was under-insulated and was a large source of air infiltration. The floor was air-sealed using spray foam and insulated with dense-pack fiberglass insulation. On the interior of the home, a crawl space at the eaves had spray foam insulation installed on the underside of the roof, to insulate and prevent heat loss at the soffits. According to Jacob and Michelle, “we could tell the difference in the heating after the first day, before the crew was even finished! I think the biggest difference was the insulation under the house, specifically under the bathroom, and that attic space.”

 

In addition to insulation in the floor system and crawl space, a low-flow showerhead was installed, six CFL light bulbs, hot-water-pipe insulation, a CO monitor and a dryer vent. With a rebate of $200, an inefficient refrigerator was replaced with an ENERGY STAR, reducing consumption from 1401 kwh/year to 652 kwh/year. “The audit was thorough and clearly explained. The best part is that they explained all the things we could do to improve the efficiency of our home, and what each renovation would entail. We were then allowed to pick and choose those improvements we felt would be best for us and also coincide with our budget.”

 

The total project cost was $4,465.06, reduced to $1,758.94 by the rebates available through the Home Performance with Energy Star program. The projected annual savings are one cord of wood, 77 gallons of kerosene, and 1395 kWh of electricity. This is also projected to reduce carbon dioxide emissions by 3,581 pounds per year and save the Jacob and Michelle $718.31 annually.

 

 

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