Solar Water Heating

Proven Efficient Technology

The Technology behind Solar Water Heating is simple, effective and reliable. The Sun’s free light energy is converted to heat energy and transferred into the water. This process will continue to deliver economical Hot Water year round. Obviously these Solar systems work on hot summer days, but they are also designed to work effectively on a cold, but sunny winter day. Outside the temperature may be below freezing, but a properly designed system will provide 100 plus degree water.

How it works!

Solar Tubes

We use evacuated-tube collectors, since it is more efficient and maintainable over the flat-plate collector. The rounded tubes can collect sunrays more efficiently throughout the day. The tubes passively track the sun and maintain a right angle with the sun for longer.
Additional benefits of the evacuated tube design exist in their maintenance. One of the tubes can easily be exchanged without the need of replacing a whole plate or shutting down the system.

An evacuated tube consists of two glass tubes made from extremely strong borosilicate glass. The outer tube is transparent allowing greater than 90% of the light rays to pass through with minimal reflection. The inner tube is coated with a special selective coating. This has a better per area absorption of solar radiation when compared to conventional flat plate collector systems. The top of the two tubes is fused together, while any air in between is removed, essentially forming an excellent thermos. Inside this “thermos” is inserted a copper heat pipe. The solar radiation that turned into heat then transfers that heat to the heat pipe.
The end of the heat pipe is inserted into the manifold where the heat exchange into the circulating fluid (water or glycol solution) takes place.

The storage tank then holds the hot water. We use a very well-insulated water tank with coil of copper tubing inside to heat up the water around it.
Our water heating systems are active systems. These systems are amongst the most commonly used, since they are considered more efficient for home and commercial uses. Active systems rely on pumps to move the liquid between the collectors and the storage tank(s). In contrast to active systems are passive systems; those rely on gravity and the tendency for water to naturally circulate as it is heated.

Basic Concept of a Solar System