Low power direct heaters like this foot mat heater heated blankets and heated throw rugs.
High efficiency solar air heater.
If you don t have it in you to make one yourself solar air heaters for sale are also available online for purchase with a bit of internet digging.
However the thermal efficiency of this type of collector is significantly higher than the thermal efficiency of conventional air heaters.
Diy solar air heater videos are a big hit on youtube with a couple of main staple ideas recycled pop can solar collectors downspout solar collectors screen or sheet metal solar collectors.
The thermal efficiency of the suggested collector exceeds 75 under normal operating conditions.
The thermal efficiency of a counterflow air heater without a porous matrix is between 10 and 18 higher than that for a double glazing conventional air heater for b 2 5 and 5 0 cm respectively.
However your solar box is probably not as efficient as a space heater so the energy heat you get out is actually less.
So a sheet of plywood sized solar box can give you 2 space heaters of energy in theory.
About our solar air heaters our patented revolutionary technology provides effective supplementary heat for up to 150 sq.
The heater is most efficient in rooms that are 150 square feet or smaller.
Although it will need to be placed in a space where it can collect sunlight it will function even in partly cloudy conditions.
Notice that the space heaters you get at like home depot or walmart pull about 1 500 watts each out of the wall.
When positioned in a southern facing window the solar panel s 3 dimensional collector cells will absorb infrared rays in sunny and partial cloudy.
Apart from that insulation draft proofing and good orientation we recommend.
The most energy efficient heater is a well insulated and draft proofed home that also lets in solar radiation at the right time.
During daylight hours equivalent to a 150 to 500 watt electric heater.
Just as the sun s energy can be put to work heating water or producing electricity it can also heat air to keep your house warmer on cold clear days.
3 dimensional stacked heat absorbing collectors under good winter sun conditions up to 30 degrees f 17 degrees c may be added to the ambient temperature in the room with a maximum air flow from the solar fan of 80 cfm.