Solar water heater absorb sunlight to heat the water though pipes or panels to be used for your kitchen,bathrooms etc.The equipment installed on the roof with a tank to store hot water.It passes this heat to a water tank. This swap is triggered by the thermal regulator, but only when the collector is hotter than the water in the tank. When there is insufficient sunlight, the water is preheated and a back-up system takes over to bring the water to the required temperature.This hot water cuts out the electricity bill to heat the water.
In the closed couple SWH system the storage tank is horizontally mounted immediately above the solar collectors on the roof. No pumping is required as the hot water naturally rise into the tank through thermo siphon flow.
In a pump –circulated system the storage tank is ground or floor mounted and is below the level of the collectors; a circulating pump move water or heat transfer fluid between the tank and the collectors.
SWH system are designed to deliver to hot water for most of the year. However, in winter there some times may not be sufficient solar heat gain to deliver sufficient hot water. In this case a gas or electric booster is used to heat the water, water heated by the sun is used in various ways. While perhaps best known in a residential setting to provide domestic hot water, solar hot water also has industrial applications.
Two types of solar water heater we are selling 1.) Flat Plate Collector 2.Evacuated Tube Collector.
Flat plate Collector
These are the most frequent type, is an insulated, weather-proofed box containing a dark absorb-er plate under one or more crystal clear or translucent covers.
These are made up of rows of parallel, crystal clear glass tubes. Each tube consists of a glass outer tube and an inner tube, or absorb, covered with a selective coating that absorbs solar energy well but inhibits radioactive heat loss. The air is withdrawn “evacuated” from the space between the tubes to form a vacuum, which eliminate conductive and convective heat loss.
What is solar water heater?
A Solar Water Heater is a device which provides hot water for bathing, washing, cleaning. Using solar energy. It is usually installed at the terrace or where sunlight is available and heats water during day time which is stored in an insulated storage tank for use when required including mornings.
Choose a company that has experience installing the type of system you want and servicing the applications you select.
How does it work?
Solar Water Heater comprises of an array of solar collector to collect solar energy and an insulated tank to store hot water. Both are connected to each other. During the day time, water in solar collectors gets heated which is either pumped or flown automatically on thermosyphon principle to the storage tank. Hot water then stored in the tank can be used for various applications.
The more better experience request your installer to provide a list of past customers and discuss with him they will share the exact product feedback.
Why should I go for a Solar Water Heater? What do I save from it?
200 liter per day capacity system suitable for 6-8 people can save upto 3000 units of electricity in a year, depending on hot water used. Higher capacity systems will save higher amount of electricity moreover reducing higher amount of Green House Gas (GHG) emissions. Electricity is expensive and is not available due to power cuts in many areas when required for heating water.
What happens on cloudy or rainy day? Do I still get hot water?
On cloudy days also, if it is for a day or two, you still get warm water as water gets heated due to diffused radiation available in the environment. The system, however, is either connected to an electric geyser in the house or an electrical back-up is provided in the storage tank of the system which is switched on when water is not sufficiently hot. So, you get hot water all the time even on rainy days.
How to decide about the size or capacity of the system to be installed?
For a house with one bathroom and 6 to 8 members, 200 liter per day capacity system should be sufficient. For more numbers of bathrooms, the capacity will increase accordingly due to pipe losses & more number of family members. Generally the capacity is decided based on hot water required in mornings for bathing. If the usage is in evening & at other times also, the capacity is decided accordingly.
Is your company licensed or certified?
Having a valid plumber’s and/or solar contractor’s license is required in some states. Contact your city and county for more information. Confirm licensing with your state’s contractor licensing board. The licensing board can also tell you about any complaints against state-licensed contractors.
Water heater service is important?
Water heaters are sensitive appliances and must be taken care of and maintained regularly. It is very important to have a good after sales service support to repair the geysers in case of damage.