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"It was comfortable as soon as we walked in."

DOE Tour of Zero: Cottle Zero Net Energy Home by One Sky Homes infographic: San Jose, CA; oneskyhomes.com. 3,198 square feet, HERS score -1, $20 average monthly energy bill, $2,900 annual savings, $123,000 saved in the first 30 years.
Key features list: High-performance insulation system for enhanced quiet and comfort, comprehensive draft protection, fresh air system for cleaner indoor air, high-efficiency comfort system, energy-efficient appliances and advanced lighting technology for
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"What jumped out initially more than anything was the comfort level of the house. It was comfortable as soon as we walked in."

–  Homeowners Bill and Michelle

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DOE Tour of Zero: Cottle Zero Net Energy Home by One Sky Homes floorplans.