DOE Tour of Zero: Clinton Two-Story (Kaltenbach) by Clifton View Homes
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Clifton View calls this 2,408-square-foot solar electric home a positive energy home because it produces enough energy from the roof-mounted 9.945-kW PV system to power the home and an electric car. The completed home with PV yields a calculated negative annual utility bill of -$187 per year!
High-efficiency ENERGY STAR-certified appliances are installed throughout the home, while an ultra-efficient geo heat pump provides heating and domestic hot water.
The concrete slab construction used on both the first and second floors serves as a natural comfort balancing system, absorbing passive solar heat from large south-facing windows during the day and later radiating warmth to the interiors at night.
The walls and roof are constructed with a structural insulated panel (SIP) thermal blanket system that assembles quickly and provides quiet, comfort, and energy savings.
The combination of insulated concrete form (ICF) and SIP construction provides a continuous thermal blanket for significant energy savings along with enhanced comfort and comprehensive draft protection.
Advanced ICF technology, which is made of foam-insulation blocks filled with steel-reinforced concrete, is used for the foundation walls. This results in a quiet, highly insulated wall. In addition, 4 inches of rigid foam is also installed under the floor slab to hold the heat from radiant loops in the concrete slab for barefoot-friendly floors.
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"Shortly after moving in [in summer], a painter opened up all the windows while painting some trim. The home heated up to 83˚ by the time the painter left. We closed the windows and within 45 minutes the thermal-mass floors had sucked the heat right out of the room, so it was just 71.˚ This house is amazing!”
– Homeowner Reed