Solar Infra Systems SIS25M 1848 Operating Instructions

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.
Also the perfect answer to
heating sheds, garages,
cottages, and stored boats and
RV's where there is limited or
no electricity.
Patented technology and
international patents pending.
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
IMPORTANT
This SIS
heater is designed for
interior installation behind
a single pane window for
best efficiency.
pane, low-E, argon, and
triple pane will reduce this
efficiency to less than 40%
to 65%. .
The SIS Solar
Heater, mounted inside
the room, behind
window glass,
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
entire house. For more
information call 1 855 535
2056 or
at info@solarinfrasystems.
com
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.
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
info@solarinfrasystems.com
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. Rooms and home areas usually are planned for 1 to 2 air changes every three
hours.
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
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
8. 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
Solar Infra Systems Int. Ltd Issue 10/1/2013
solar air
Double
Air
the
reverses
an
Window Construction Loss
email us
Single Pan Clear
Double-PanClear
Double-PanLow-E
one heater or a larger
and we will help you size the solar heating.
75 cu ft/min x 60 min/hr

OPERATING INSTRUCTIONS

SOLAR THERMAL AIR HEATER
Consumer Model SIS25M 1848
Don't forget to fill out the
Warranty Card and the Solar
Energy Payback Estimator
Radiative Conductive Total
Heat Heat Heat
Loss Loss
(Btu/hr/ft2) (Btu/hr/ft2) (Btu/hr/ft2)
35 21 56
21 13 34
5 15 20
model. Please contact
= .66 air changes per hour
(~2 air changes every 3 hours)
Issue 9/15/2013e
Compared to
Single Pane
Heat Loss
----
65%
36%
us at