Fall 2012 installation at Eagle Mount's equestrian arena
Above Panel Dimensions 80' x 12'
Building size 80'x120'
Size is always customized to the available wall space, generally 10% of sq
ft area of building
"The Choice Energy Hot Solar Air system that was installed in
the fall of 2012 performed amazingly for us this winter. With the addition
of the insulation and the hot solar air panels our participants, volunteers
and horses were comfortable throughout the winter riding sessions. We only
turned the gas hot air heater on once and left it on for a very short period
of time - just to take the morning chill off." Eagle Mount,
"To Whom It May Concern,
I was already acquainted with Mr. House when that referral was made, as I am
a volunteer riding instructor at Eagle Mount, where he installed a passive
solar heating system in late 2012. He has since installed a small passive
solar air system on my building in Bozeman, with construction completed in
early February, 2013. In these recent cold days, I have been delighted with
the performance. Mr. House was prompt in responding to my questions and
concerns, completed the project when scheduled, and has been available to
answer questions and concerns well after his final payment was made."
Betsy, Johnson Road, Bozeman, MT February 2013
Feb 2013 Installation on Johnson Road near Bozeman
Above Panel Dimensions 25' x 12'
Building size 60'x80'
HERE for a time lapse video of the installation
How It Works
Watch our demonstration video:
There are two versions of solar air heating:
active and passive. In the passive version, no fans are used and openings are created through your
existing wall at top and bottom, allowing heat as well as daylight to enter
while retaining the vast majority of the inside wall space in its original
version utilizes at least one highly efficient duct fan to push the cool
intake air through the heating panel. This requires some minor electrical
installation but allows the hot air to be delivered to locations other than
the immediate room or space that the heater is mounted to, and also greatly
reduces the amount of labor in creating the wall passages along the top and
bottom of the passive heater.
In either version, the exterior surface can remain its original color, or painted the sun's
favorite color (black) for additional heat output.
framing is attached to the outside of
the building onto which clear polycarbonate panels are attached. The end result is a sealed 6- to 8-inch thick
greenhouse that pumps warm air inside.
It makes heat when you most need it -
winter - and turns off in the summer. The panel receives very little
direct light during the summer months because of the high angle of the sun,
however, during winter the low angle sun comes in at full strength and extra
sun is reflected onto the panel by snow covered ground which can nearly
double the output.
In the he passive version, backdrafting during night time or cloudy
weather is prevented with simple flaps on the inside of the passages. With
the active version backdrafting is prevented by use of a simple one-way duct
flap installed on the return air side.
Installation takes only a matter of days.
Emailfor a price estimate or
to schedule a site visit.
the heater shown at top left of page
Heat Output: Considering
a 20x8 collector, 160 sq ft *(Pictured
at Top Left of page)
Building insulation: R19
in walls and ceiling of 700 sq ft room Temp rise between intake and output vents: 50-60
degrees Btu of peak output: 25,000
Btu/hour, total daily heat gain 130,000 Btu, or 38 kWh (kilowatt hours) Petroleum fuel equivalent of 130,000 Btu: 2
gallons Indoor air temp achieved on sunny day: 60-75 degrees F
Time required to raise indoor air temp from 35 to 65 degrees: 3
hours Cost per sq ft of collector (materials only, Jan 2009): $3.50/sq
ft Cost per sq ft of installed collector: $15-25/sq
ft Cost of commercially available collector: $61.59/sq
and installation (includes solar fan)
* Taken by permission from Gary Reysa,Build
A Simple Solar Heater, Mother Earth News, December 2006/January 2007