By using solar to heat water, you save up to 80% energy per year, and therefore money.
With a lifespan of about 15 years, it is perhaps the ideal medium for heating water, especially in our sunny country most months of the year.
In order to choose the right water heater according to your needs, it would be good to pay attention to the following points:
Solar water heater categories:
1. Double energy where the solar can operate through two sources, the sun and the current.
2. Triple energy where in addition to the above two sources the solar panel can also operate in collaboration with the central heating system of the house. The advantage of solar triple energy is that in case it has no sunshine or you have a problem with the burner you will be able to have hot water through the boiler of the radiator. Collector type: 1.Black paint This collector is of the old type and has a lower efficiency than the new technology collectors. 2.
Selective
The selective collector is the evolution of the black collector. It absorbs about 95% of the sun's rays, minimizes heat loss and offers high efficiency and energy savings. Selective collectors always have a transmission rate of less than 5%.
3. Vacuum Pipe Collector
These collectors are new technology, maximizing energy absorption and heating the water faster. The purchase cost is higher than the selective ones, but they are more suitable for areas with less sunshine over time.
Tank capacity: For example, for a family of four, solar panels with a capacity of 200 liters and above are the most common choice. For a couple without children, a 120 liter solar panel meets the needs for hot water. Maintenance:
To determine the size of the tank, calculate about 40 to 50 liters for each person.
In any case, it is better to buy a solar with a larger capacity than you need.
The family can grow and the extra hot water produced is used not only for bathing but also for various household chores such as washing dishes or even the next day.
For proper maintenance of the solar system and the extension of its lifespan, it is advisable to do the proper maintenance once a year.
Maintenance may include the completion of the special coolant, the change of safety valve as well as other work depending on the model of each solar panel.
It is very important that both the installation and the maintenance of the solar system are done by certified and specialized professionals in order to ensure the correct operation, the maximum efficiency but also to extend its lifespan.
Installation:
Finally, before buying your solar water heater, depending on where the installation will take place, you will choose the ideal solar panel based on the place where you will place it on the roof or the tiled roof. Usually the solar models are suitable for both. Using the corresponding support base depending on the mounting point you don't have to worry about it will fit in your new home.
Tips: 45 ° degrees from the mounting surface and facing east at sunrise.
The ideal place to place the solar for maximum energy utilization is inclinedIn the summer when the temperatures are very high, it is good before you go on vacation to cover your sun with a cover or a special cloth as the hot water that is produced is not channeled somewhere. This way you will not have to worry about any damage and you will be able to enjoy hot water when you return. See here solar water heater covers.