Solar Hot Water Systems

Asking price; $100-500.

History Behind It

The first solar water heater was patented in 1891; Within 5 years about 30% of homes in Pasadena and California had solar domestic hot water systems installed. Then spreaded to Florida in the 1930´s, copper shortages in world war 2 crippled the burgeoning solar hot water industry.

What Is It ?

A gas or electric booster is used to heat the water, solar water heating systems compromise several innovations and many mature renewable energy technologies that have been well established for many years.

How It´s Used

Solar water heating systems include large tanks/solar collectors and two types of solar water heating. One is active (direct), which has circulating pumps and controls, and then passive (indirect) which does not. Direct Circulation ~ Pumps circulates household water through the collectors and into the home. They work well in climates where it rarely freezes. Indirect Circulation ~ Pumps circulate a non-freezing heat transfer fluid through the collectors and a heat exchanger. This heats the water that then flows into the home. They are popular in climates prone to freezing temperatures.

How Efficient ?

On average your water heating bill should drop about 50-80%. Adding solar hot water systems to a 30 year mortgage should be about 13-20$ a month, with tax deduction it should be 3-5$ a month.
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  • Use the free energy from the sun to heat your water.
  • Lower monthly electric (or gas) utility bills.
  • Great for climates that receive a lot of sunshine.
  • Federal tax credits help lower upfront cost and there are often local incentives that also help offset part of the initial investment.


  • Tank takes up more space than tank less units, but comparable to (or slightly larger than) ¨normal¨ tank type units.
  • Higher upfront cost for equipment and installation.
  • May not have a great of performance in climates that do not receive a lot of sunshine.
  • Tank can produce a significant amount of heat, so its location will need to be planned accordingly.
  • More equipment = more maintenance.

Why You Should Buy It...

I honestly think this would be a great idea to get because your saving money on water bills and/or electric bills. Also, you will always have good source of energy from the sun. Your saving money and never have to worry about where your getting your source of energy and your also being "Green".