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Feasibility study of a roof top Solar room heater

The present work describes a low cost solar space heater. The device is the replacement of the concrete cantilevers used above the windows in houses facing the south direction. An experiment was conducting by making a suitable device for use for the purpose. It has been observed that the device can be used to heat the space for the south facing room windows directly and for the other directions by circulating the air through the device kept at the roof top making an angle of about 38 degree with the roof top.