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Solar Water Heater

SALIENT FEATURES OF SOLAR WATER HEATING SYSTEM

• Around 60 deg. – 80 deg. C temperature can be attained depending on solar radiation, weather conditions and solar collector system efficiency
• Hot water for homes, hostels, hotels, hospitals, restaurants, dairies, industries etc.
• Can be installed on roof-tops, building terrace and open ground where there is no shading, south orientation of collectors and over-head tank above SWH system.
• SWH system generates hot water on clear sunny days (maximum), partially

clouded (moderate) but not in rainy or heavy overcast day

• Solar water heaters (SWHs) of 100-300 liters capacity are suited for domestic application
• Larger systems can be used in restaurants, guest houses, hotels, hospitals, industries etc.

SAVINGS by use of SOLAR WATER HEATER:

• Fuel Savings : A 100 liters capacity SWH can replace an electric geyser for residential use and saves 1500 units of electricity annually.
• Avoided utility cost on generation : The use of 1000 SWHs of 100 liters capacity each can contribute to a peak load shaving of 1 MW.
• Environmental benefits: A SWH of 100 liters capacity can prevent emission of 1.5 tones of carbon dioxide per year
• Life : 15-20 years

BENEFITS of SOLAR WATER HEATER

• It can be used in snow bound areas
• Heat exchanger is not required in the system even where there is hard water
• Can be used up to 10 degrees C ambient without water freezing in the tubes
• Pay back period is 2-3 years depending upon the extent of use and type of utilization