How does solar water heaters work?
Just how does sunshine become heat for your water? Here’s an overview of the solar thermal energy facts, the process, and the equipment that can help you generate your own clean, more affordable energy to heat your water.
1. Solar Collector Panel
The solar collector panels are either
evacuated tube type or flat plate type.
They convert sunlight into heat energy
throughout the year.
2. Hot water Storage tank
Hot water is stored in an insulated tank at
high temperatures so that even when the
weather outside is cold the water remains
3. Cold Water in
The cold water from your plumbing
system gets into the tank to receive the
heat collected in the solar collector
4. Hot Water out
The hot water is taken from the tank to
the utilities, taps and showers for use.
You can opt to have an electrical element or gas
burner for your backup heating when there is
excess water usage or it’s too cold for a long
period of time.
Our exclusive controller system monitors the
temperature of the collector and
automatically determines when to heat the
water. It even allows you to set exactly what
temperature you want and at what time.
SOLARVED offers a wide range of water heating solutions. For our solar water heater class, we have three major categories: Thermosiphon systems, Split systems and Low pressure systems
1. Thermosiphon systems
For this category both the collector panel and the water tank are placed on the roof and connected to the plumbing pipework via connections on the system tank. Proper roof analysis must be done to ensure the roof can support the weight of the system when filled with water. The system does not require any pump for its operation. You still have more options, you can choose either flat plate or evacuated tube for your collector for these systems. View Products >
2. Split systems
In Split systems you are able to place the water storage tank far away from the collector panel and still get water heated to high temperatures. They give you more freedom to place the tank to a location of your choice and even avoid too much weight on the roof. This kind of systems use a low power pump to get the water heated by the collector panel on roof. The collector panel can be evacuated tube or flat plate. View products >
3. Low-pressure systems
Low pressure systems can either be one of the above categories, thermosiphon or split systems. They are classified separately for use in low water pressure applications. The systems work well for systems with pressures in the range of 0.05 bars, which may work well for some gravity fed systems. SOLARVED insists to provide a site survey for these systems to ensure long life service for your project. View Products >
EXERCISE CAUTION WITH LOW PRESSURE SYSTEMS
Low-pressure systems require the water supply pressure to the system to be less than 0.05bar. Let’s advice you for which projects the low-pressure systems can work.
Evacuated tube or flat plate collector
Solar thermal technology has evolved over time to high efficiencies with flat plate blue titanium collector having absorptivity values of above 95% while the evacuated tube has efficiency values of over 97% which means more heat is captured from the sunshine, which translates to affordable heating of high volumes of water. Evacuated tube type is cheaper and more efficient than the flat plate type, while the latter is less fragile compared to the tube type