Solar collectors

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When it is said that solar collectors can be either glazed or unglazed, it may seem like the person speaking may have meant to say donuts instead of solar collectors. But, it is true. These are the two main types of solar collectors.
The similarities are many, but there are some distinct differences that set these two kinds of collectors apart from one another.
• Glazed – These are likely the more popular and more frequently used of the two kinds. That is because they are best suited for places with moderate temperatures that fall somewhere in between 80-150 degrees Fahrenheit. Although 150 degrees may seem very hot, it should be remembered that this temperature refers to the roof of a home and not the air temperature. There are liquid-based as well as air-based collectors.
These liquid-based solar collectors are mist often used for doing things such as heating hot water in homes, businesses or swimming pools. The air-based collectors, on the other hand, are more often used for heating buildings through ventilation.
• Unglazed – These solar collectors are not as popular, but they serve a particular need. For the most part, they are used to heat up cooler surfaces. They are often used for outdoor pools where the temperature is 85 degrees or less.
Typically, these kinds of collectors are made of black plastic that have been created to be able to absorb and withstand the ultraviolet light that it receives all day. Because there is no glazing involved, it allows these collectors to capture more of the sun’s pure energy without any problems of other things getting in the way.
Even though they collect heat well, one of the major problems arise soon after because they are not able to keep hold of that heat after they have collected it if it is warm and windy outside.
Knowing which of these solar collectors is best to use depends largely on the climate in which it will be used.

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