Solar Water Heater

If you’re looking for a way to save a little bit of money on your monthly bills, you may want to look at investing in a solar water heater. A solar water heater, sometimes called a solar domestic hot water system, uses solar energy to power your hot water heater. This cuts down on your electricity bill while at the same time helping save resources and the environment since it’s a green form of energy.

Solar water heaters come in two varieties: there are active solar water heaters that include a circulating pump, and there are passive solar water heaters, which do not feature controls or a circulating pump. Both types include a storage tank and a solar collector panel. In addition to these two types of solar water heaters, each type can be divided into one and two tank systems. A single tank system uses a well-insulated tank in which water is heated and stored. A two tank system preheats water in one tank before moving it to the standard water heater. Two tank systems have a separate back-up heater, while a single tank system combines the back-up heater with the storage tank.

But wait, there are even more options when it comes to solar water heaters. There are actually three different types of solar collectors you can purchase for a residential solar water heater. The first is the flat plate collector. This is a waterproof, insulated box that features absorber plates. These plates may be located under a plastic or glass cover or, like those used for solar pool heaters, may be uncovered.

The second type of solar heating system is called an integral collector-storage system. These ICS systems are made up of a tank and tubes that are placed in an insulated box. Cold water flows through the solar collector and is heated. Then the water is passed along to a more conventional water heater. However, these types of solar water heaters should only be used in mild climates because there’s a chance the outdoor pipes could freeze and burst in very cold weather.

The third type of heating system is an evacuated-tube system. These solar water heaters are made of parallel rows of tubes. Each tube features both an outer tube and a metal absorber tube that is attached to a fin. The fin accumulates solar energy and heats the actual water. These collectors are generally used more for commercial businesses instead of residential homes, although some larger homes do use evacuated-tube systems.

When it comes to active solar water heaters, there are two types: direct circulation systems and indirect circulation systems. Direct systems circulate the water through the solar collector and then into the house. They work best in areas that rarely have freezing temperatures. Indirect circulation systems, on the other hand, do not actually circulate water. Instead, they circulate a heat-transfer fluid through the solar collector and into a heat exchanger. The exchanger then heats up the water. Indirect circulation systems are ideal for areas that often have freezing temperatures because the heat-transfer fluid is non-freezing.

Passive solar water heaters, on the other hand, are not as efficient as active systems, but they are cheaper. They’re also somewhat more reliable and generally last longer. There are two types of passive solar water heaters: integral collector-storage passive systems and thermosyphon systems. Passive integral collector-storage systems are usually only used in areas that do not frequently have freezing temperatures. They’re also used in houses that require significantly more water during the day and evening.

Thermosyphon systems are quite reliable, but they’re somewhat more difficult to install. The storage tank is quite heavy, so the roof must be able to hold up the weight. Thermosyphon systems are the more expensive type of passive solar water heaters.

This Solar Water Heater Review is Written/Updated on Feb 27th, 2009 and filed under Home Appliances. Both comments and pings are currently closed.

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