Costion uses solar water heater to heat water and several greenhouses at his home east of Snowflake. During this workshop, he'll help you get a better understanding of sun angles, heat transfer, thermal design, glazing and insulation. Other topics will include proper sizing of your solar collectors, positioning and freeze protection.Enroll in the "Solar Water Heater," (BOC 099x-95035) workshop at least a week before the class starts to ensure it is not cancelled due to insufficient enrollment. A solar water heater costs around Rs. 20,000 for each school and funds are always a problem.