It is estimated there are currently over one million domestic and 200,000 commercial solar water heaters installed within the United States. Though there are different types of solar water heating systems, their basic technology is quite simple. It begins with sunlight striking and heating an absorber area within the solar collector or storage tank. Solar heaters are typically roof-mounted and can supply 80% of the required hot water for your home. The portable will flow via the tubes attached to the absorber surface. The heat is collected from it. Systems using a different heat-transfer loop have a heat exchanger which will heat up the potable water. This heated water is then stored separately in a preheat or conventional water tank until required. If the water requires additional heating, fossil-fuel energy or electricity can be applied.
If you’re shopping for a solar water heater Florida, learn the different types that are out there. These include:
#1 Thermosiphon Systems
This system heats an antifreeze fluid called glycol. This fluid will rise via natural convection from the collectors to the storage unit, which is typically placed on a higher level. Pumps are not required in this system. Fluid movement and heat transfer increases as the temperature rises. Thermosiphon systems work best in areas with large amounts of solar radiation.
#2 Direct Circulation Systems
In this system, water is pumped from the storage tank to the collectors during sunny periods. Protection from freezing is obtained by recirculating the hot water from the tank or flushing out the collectors. Since the recirculation system requires increased energy use while the flushing component reduces hours of operation, this type of solar water heater Florida is best used in areas that do not receive freezing temperatures.
#3 Drain-Down Systems
This is an indirect heating system. Untreated/treated water is dispersed via a closed loop. The heat is transmitted across a heat exchanger. If solar heat is not available, the collector fluid drains by gravity to prevent freezing.
#4 Indirect Water-Heating Systems
Freeze-protected fluid is transmitted via a closed loop. Heat is added to the potable water using a heat exchanger. Substances such as water-propylene glycol and water-ethylene glycol are used for freeze protection. This system has an 80-90% efficiency rate.
#5 Air Systems
This is an indirect system of water heating. Collectors will heat up the air and move it to an air-to-water heat exchanger using a fan. This water is then used for domestic purposes. The efficiency of a heat exchanger in air systems lies within the 50% range. Thermosiphon, pump-activated and direct circulation solar water heaters require higher maintenance. A majority of the solar water heaters in the United States are indirect air/water systems.
If you’re considering getting a solar water heater Florida, contact PS Solar System.