Solar Thermal Water Heating (also called domestic hot water) is a simple, reliable, and cost-effective technology that harnesses the sun's energy to provide for the hot water needs of homes and businesses. A Federal Rebate allows you receive a tax credit worth 30% of the system cost! This is the best time to reap the numerous benefits of solar power!
There are two basic types of Solar Water Heaters: Passive Solar Water Heaters (for warm climates) & Active Solar Water Heaters (for moderate and cold climates). Active systems utilize a circulating pump and some type of temperature control. Passive systems do not have any moving parts and rely on the basic principle of physics - that hot water rises & cold water falls.
Active systems all function basically the same; however, there are different configurations depending on your climate zone. Passive systems come in two basic types: Thermosyphon & Batch. Each system has its distinct advantages.