Energy Efficiency and Cost Effectiveness of Solar Water Heaters

Abstract

There are different opinions on the question of energy and economic efficiency of solar water heaters. Some researchers believe in high effectiveness of solar water heater application while others questions their cost effectiveness. In this arti¬cle detailed investigations have been accomplished to discover energy and economic real efficien¬cy of different types of solar water heaters on the base of suggested procedure for their real payback periods determination. It’s proved that flat type solar water heater has much longer payback than newly suggested cylindrical shell and tube type solar water heater.