sun provides heat all year round, so
why not use solar in the winter too!
Solar air heating can supplement
your regular heating system and can
dramatically reduce your heating
costs. Air in your home is
circulated through a collector on
the exterior wall where it can gain
up to 15 degrees Celsius before
being vented back into the room. The
collector looks like a large door
(about 1.2 x 2.4 meters) and should
be mounted on a sunny south facing
wall or roof. The collectors weigh
about 45 kilos.
exchange air with the inside of the
house through two 12.5 cm holes to
be situated in the exterior walls.
On a sunny day, the air heater will
produce heat which will be stored in
the furniture, rugs, curtains, etc.
(We call that "thermal mass.") That
heat will be dissipated throughout
the evening. Solar air heating
systems can be used with duct system
or without, and there are systems
that can be used for multi-rooms,
and in conjunction with water
One collector is
recommended to heat about 75 square
meter and will typically last 25-30
years! You may need to replace the
fan during that time