How pumps work


Solar Boilers - Have the sun pay your energy bill

Residential hot water is a significant energyeasely build simple systems yourself all you
consumer for most households. In fact, hotwill need are parts that you can find in any
water is sometimes the largest single energyhardware  store.
cost. Using solar energy to provide at least
some of the hot water in your household canActive systems make use of pumps to circulate
result  in  significant  savings.the water. In some systems, the pumps can be
powered with solar energy; otherwise they
There are several ways that solar energy canmust be connected to the household electrical
be integrated into a hot water system.supply. In both systems a storage tank is
Although solar boilers can be used on theirneeded  to  hold  the  heated  water.
own, they are most often used in conjunction
with traditional water heaters which areOn hot days with plenty of direct sunlight
powered by gas or electricity. In this kindsolar systems can heat water with surprising
of system, the water heated with solar energyefficiency. During this kind of weather,
can be used on its own (if it is hot enough)there may be no need to use electricity or
or as preheated water for the traditionalgas as a backup. When the weather is colder,
water heater. Pre heated water will alsothe solar heaters can preheat the water which
dramatically  decrease  your  energy  bill.passes into the traditional water heater.
This preheated water requires much less
Solar boilers can be used in any type ofenergy to bring to proper temperatures which
climate but are most practical in areas whichcan result in significant savings on your
don't have freezing weather during theenergy  bills.
wintertime. Solar hot water systems in
colder climates can use indirect heatingAs with all alternative energy systems there
systems which do not expose the water to theis a lot of room for your own imagination if
freezing temperatures. Instead, a fluid thatyou like that. If you don't you don't and
resists freezing circulates through the solarjust use the technology, but for those who
panels and is used to heat the water.like to play around with technology like
Southern climates can use direct heatingmyself these systems offer a myriad of
systems where the water itself passes throughpossibilities  to  think  about.
the  solar  panels  installed  on  the  roof.
For example, a stirling engine converts
There are two basic types of solar hot waterchanges in temperature into mechanical
systems -- active and passive. Passivemotion, for example to generate electricity.
systems rely on gravity and the natural flowMmm, that's a nice thought. A change in
of water from hot to cold. They are simpletemperature is something this system will
systems and require very little maintenance.provide, but it will also heat your water. A
They are durable and long-lasting. You candouble benefit?



1 A B C D E F 89 90 91 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 131 132 133 134 135 136 137 138