Solar Direct Injection

Solar Hot Water Systems

Solar water heating systems usually save owners 50-80% off their water heating bills. The sun provides free energy that won't be subject to a rate increase!
Solar Direct Injection

How Solar Water Heating Systems Work

Solar water heating systems use south-facing solar collectors to capture solar energy in the form of heat which is transferred to water or a high heat transfer fluid such as propylene glycol.

The solar collectors can be arrays of evacuated tubes or flat panels, and can be installed on roofs, accessory buildings, or free standing mounts. Active systems use circulating pumps (which may also be solar-powered) to produce hot water up to 195 degrees F. Active systems can produce more hot water per day than passive systems. Passive systems do not have any pumps, controls, or moving parts. They simply use gravity and in-line water pressure to move heated water to a storage tank.

Download the Dept. of Energy's Heat Your Water With the Sun document below to learn more, there's an excellent graphic & explanation on page 2:
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