Instructions / Assembly

Solar Infra Systems Int. Ltd Issue 12/12/2012
What is an Air Solar Heater
This SIS air solar heater uses the sun’s
solar energy to heat air through a window in
the home, apartment, cottage, boat, RV, and
circulate this heated air in the room. This is
not a solar PV panel or solar water heater.
The heater is hung or placed in a south
facing closed window inside the room or
space to be heated.
This SIS model air solar heater heats air.
It is like an electric room convection air space
heater except it is operated by the sun’s solar
energy. Hang or set it in a sun facing window,
or side-ways, or even upside down, and it will
maintain heat in a large room or area in the
home. The heating capacity is equivalent to a
150 to 500 watt electric heater, depending on
the daytime sun and cloud cover.
The model air solar heater is also
transparent and will still let most of the
window sunlight into the room.
Sunlight and a PV panel also operate a
fan on the heater. The fan draws the room air
into the heater and then pulls the air through
metal solar energy collectors heated by the
sun. The solar heated air is recirculated back
into the room. The fan has a speed control so
the air exchange in the room can be set,
usually to 1 to 1-1/2 hours, at up to 75 cubic
feet per minute.
Patented technology and
international patents pending.
IMPORTANT
This SIS solar air
heater is designed for
interior installation behind
a single pane window for
best efficiency. Double
pane, low-E, argon, and
triple pane will reduce this
efficiency to less than 40%
to 65%. .
The SIS Solar Air
Heater, mounted inside
the room, behind the
window glass, reverses
this heat loss, collects the solar heat coming
through the glass, and heats the air in the
room. Ordinary single glazing works best with
an interior Air Solar Heater.
SIS has a range of exterior mount models
that are not affected
by glass obstruction
and are capable of
heating an entire
house. For more
information call 1 855
535 2056 or email us
at
[e-mail]
Also the perfect answer to
heating sheds, garages,
cottages, and stored boats and
RV’s where there is limited or
no electricity.
Solar-Infra Systems International Ltd
209-19138 26
th
Avenue, Surrey, BC, V3S 3V7
Canada. Toll Free 1-855-535-2056
T-604-535-2056 F-604-535-0681
www.solarinfrasystems.com
OPERATING INSTRUCTIONS
SOLAR THERMAL AIR HEATER
Consumer Model SIS C25M 1848
Issue 1/6/2013e
The SIS Air Solar Heater Installation
1. Hang, or set on the sill, in a south facing window. The window should be
ordinary single glazing. Turn the speed control knob to maximum.
2. Large glass areas, such as solariums, can have too much heat loss through the
glass to the air outside, for this size of SIS air solar heater. It may require more
than one heater or a larger model. Please contact us at
[e-mail] and we will help you size the solar heating.
3. The Solar Heater can be mounted between the window and a venetian blind.
Make sure the blind is open enough to allow fan recirculation into the room.
4. Use the fan speed control to adjust the room temperature. The slower the air
flow, the higher the outlet temperature, because of the increased air retention
time in the heater. Rooms and home areas usually are planned for 1 to 2 air
changes every three hours. Turn the knob clockwise to increase the air flow.
5. The fan capacity is 75 cubic feet of air per minute. Divide this into the volume of
the room or heated area and this will show the number of air changes per hour.
6. For example:
Air changes = Room 20ft x 15ft x 10 ft high = 3000 cubic feet volume.
Air Changes= 3000 cubic ft = .66 air changes per hour
75 cu ft/min x 60 min/hr (~2 air changes every 3 hours)
7. Cloudy, low sunlight, or rain conditions may not produce enough Photovoltaic
Panel energy on the front of the heater to operate the fan, even though there
may be enough solar energy for the heater to add 3-4 degrees to the room
temperature. Use the AC adapter to operate the fan from household power. (a
timer can schedule the fan for day use only). The cost is minimal.
8. For cottages and homes without power, an optional large PV panel will be
available for increased sensitivity for low sunlight conditions.
9. WHAT IS YOUR PAYBACK: We use a NASA/Government program that
calculates the energy savings and heating output in most locations in the world.
Email your location, home area, electricity cost per kWh, heating fuel and unit
cost, and we will send you the time payback estimate on the savings in energy
by using an air solar heater or fill in form at www.solarinfrasystems.com
Don’t forget to fill out the
Warranty Card and the Solar
Energy Payback Estimator
Radiative
Conductive
Total Compared to
Heat Heat Heat Single Pane Indoor
Window Construction Loss Loss Loss Heat Loss Glass
(Btu/hr/ft2) (Btu/hr/ft2) (Btu/hr/ft2) Reduction Temp(°F)
Single Pane Clear 35 21 56 ---- 26
Double-Pane Clear 21 13 34 39% 44
Double-Pane Low-E 5 15 20 41% 54
Double-Pane Low-E Argon 2 16 18 47% 56
Triple-Pane Low-E 2 11 13 62% 59
Triple-Pane Low-E Argon 1 11 12 65% 60