Solar collectors (panels) are typically integrated into the slope of the roof. This gives the solar collector the appearance of a sleek, low profile glass skylight. The site survey will determine on which side of your house the solar collector will be located, and will verify that you will not have any collector shading problems. You typically need only about 4 hours of direct sun per day to produce your hot water supply.
Solar hot water systems act as a pre-heater to heat water before it is drawn into the cold inlet of your electric water heater. On sunny days the sun will heat 100% of the hot water you need. On cloudy days, there is usually sufficient solar energy to provide the required hot water. On some occasions such as prolonged overcast periods or when your hot water demand is very high, your existing electric hot water heater will kick in and ensure that you always have hot water. A Solar hot water system turns your home’s existing water heater into a backup system.