A Household Solar Water Heating System uses Solar Collectors to capture solar energy and uses such energy to heat water for household use.
We would install a Twin Coil Solar Cylinder with one coil being heated by solar energy and the other coil, a top up, provided by your existing boiler.
Sensors on the roof and on the cylinder relay temperature readings to a solar controller. When the temperature on the roof is higher than that of the water in the base of the cylinder a pump is automatically turned on and the heated water from the roof is pumped down to the bottom of the cylinder. The water is pumped through a coil and the heat is dissipated into the water in the cylinder. This cylinder water is then used for washing, bathing and showering.
When the temperature out on the roof is less than the cylinder the pump is automatically switched off. In cooler periods when Solar cannot provide all of your hot water needs the cylinder will be topped up by your boiler or immersion heater.
Most people can soley rely on Solar for hot water for around 6 months of every year.