How a Solar Hot Water Heater Works
Your solar thermal system will be designed to fit your home or business, saving you money as it captures heat from the sun for hot water, radiant floor heating, or space heating.
THERMAL COLLECTORS TRAP HEAT FROM THE SUN
When sunlight strikes any surface, its light energy is converted directly into heat. Components known as ‘thermal collectors’ or ‘solar collectors’ are specifically designed to maximize the conversion and transfer of heat captured from sunlight. Most collectors are constructed with a transparent glazing that permits sunlight to pass into the collector but blocks the escape of captured heat back out (collectors for heating swimming pools do not require glazing).
SOLAR HEATED WATER IS PUMPED TO A STORAGE TANK
Beneath the glazing is a system of piping, usually made out of copper, that transfers the captured heat to a solution of water and antifreeze which is then circulated into a storage tank. This fluid can also be circulated through tubes below your floors for radiant floor heating or to a forced air heating system.
TEMPERATURE SENSORS CONTROL CIRCULATION
Temperature sensors on the collector and in the storage tank are analyzed by a control that determines when there is enough heat gained in the collector to transfer to the tank.. An activated pump then circulates the fluid through a heat exchanger in the tan. In this closed loop system, the glycol solution stays isolated from the potable water in the tank. The cooled fluid returns to the collectors for additional heating.
YOUR SOLAR HEATED WATER IS READY TO USE!
Water in the solar storage tank is then ready for domestic use, resulting in less electricity or gas being used to meet the hot water needs of your home or business.