Energy Star Certification

March 10th, 2011

Energy StarWilmington, NC home builder Mark Johnson Custom Homes recently completed an Energy Star certified home in Landfall. The home received a 61 on the HERS (Home Energy Rating System) index, meaning it is 39% more efficient than a code minimum home.

The estimated ANNUAL energy cost for the 3100 sf home is $1,897. After the final calculation, the homeowner stated, “Wow, we would have spent that amount in 4 months at our last home.”

Basically, being 39% more efficient than code for this home equals $700+ savings PER YEAR. MJCH’s standard framing techniques, insulation package and HVAC system not only accommodate, but exceed Energy Star requirements. The return on investment is less than 15 months. If the homeowner stays in the home for 15 years, that’s $10,500 in savings and as our energy costs rise (and they will), the savings will be even greater. This also results in a more marketable home when it comes time to sell.

At the end of construction, our Energy Rater, Above and Beyond Energy, removed the front door, added pressure to the house and calculated the air leakage. This test, along with various field visits, ensured a 5 STARS PLUS rating which is the highest level attainable.

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