National Solar Tour


81. October 28, 2006


Kevin, Marty & crew of Hewitt Stucco (Lakeville, MN) apply stucco base coat.
East end of south side. Base coat is complete!!

82. November 27, 2006


Roof window shafts framed, ceiling sheetrocking begins (Triple-E Construction).

83. December 5, 2006


Rick & Emmitt (Triple-E Construction) finish hanging sheetrock.

84. December 14, 2006


Spray foam insulation.
Installed Building Solutions of Farmington, MN.

85. December 14, 2006


Spray foam insulation.
Installed Building Solutions of Farmington, MN.

86. December 16, 2006


Spray foam insulation.
Installed Building Solutions of Farmington, MN.

87. December 30, 2006


Ceiling sheetrock taped by Scott Pauly, Shakopee, MN.

88. January 4, 2007


Fiberglas insulation installed above the spray foam insulation.
Installed Building Solutions of Farmington, MN.

89.


Hot water heater with built-in insulation and solar tubing inputs.

90. July 6, 2007


Kevin and Marty Hewitt & crew return (Hewitt Stucco, Lakeville, MN)
to apply the Parex finish coat. Starting on the west end of house.

91. July 6, 2007


Close up of the Clay Powder Parex finish. Marty Hewitt is an artist!

92. July 6, 2007


Applying stucco finish to the south side.

93. August 1, 2007


Finished stucco. Thank you, Hewitts!!

94. Solar Design: Inputs


Solar collectors circulate glycol mixture, gaining BTU's in the solar panels and transferring
them to the heat-exchanger for distribution. The heat distribution system is flexible, with the
ability to transfer the BTU's to a 2-foot subterranean sand bed for storage, or the solar/electric
water heater, or to any combination of 5 radiant heat loops within interior walls for selective and
more instantaneous spot heating. Heat within the sand bed is constantly migrating to the surface,
heating the entire slab.

95. Solar Design: Outputs


On cloudy days, and overnight, when there is no solar input, interior heating continues as
thermal energy stored in the subterranean sand bed radiates up through the slab into the
living space. Additionally, stored solar energy can be recovered by reversing the flow
through the 4 subfloor sand bed loops, picking up stored BTU's and redistributing them
to the hot water heater or any of the 5 zones of wall radiant loops.

96. August 22, 2007


Solar system, a work in progress...

97. August 24, 2007


Solar drain-back tanks.

98. August 30, 2007


First day of solar system operation!

99. September 1, 2007


Solar system electric work begins.

100. September 1, 2007


Solar control panel being built.


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