Roof top solar space heaters are gaining popularity in the mid USA.  This home owner choose a roof top space heater over a solar PV system because the cost and payback just made more sense.  With solar space heaters under $1000.  There are no expensive electrical permits and costs required to install them.  The solar space heater uses a small solar panel that regulates the speed of a turbo fan based on the intensity of the sunlight.  On sunny days the unit can produce 1 kW (1000 watts) of heat energy.  In the Midwest were winters can get cold, the solar space heaters are a great supplement to rising heating cost without breaking the bank.  For more info on the performance of these air collectors visit

This mobile home owner in New Hampshire uses a SA34 solar air heating panel to assist with heating bills in the winter. The south facing wall is ideal for any solar air collector. The unit can draw fresh air from the outside or use the air in the home and recirculate it provide great heat even below zero. The home owner is so impressed with the performance that they are planning to install a second collector as soon as the snow melts. For more information on how solar air collectors work visit

This newer house in Virginia USA installed a single solar air collector to heat their 3 season room. Customer says the solar air heater works very well and they actually have to turn it down in the middle of the winter. Any snow on the roof is quickly melted off as the collector heats up quickly. The integrated air vent on the ceiling can be opened or closed to stop heat or the customer can simply turn down the temperature which causes the solar fan to stop.

Using 123 Zero Energy’s SAH34 Solar Air Collector this customer is able to heat their shop without turning on their hydronic heater in the spring and fall.   Even in March with temperatures below zero the unit supplies consistent heat to the shop on sunny days.    The digital controller only turns on if the air temperature in the Solar Air Heater is greater than the air temperature in the shop.  Without using any energy or auxiliary wiring the unit was installed in hours.