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Back up heaters for solar heaters

Solar Water Heaters have only one handicap that during no Sunshine days there may not be enough Hot water for usage.  Kraftwork incorporates the following back up systems to take care of this eventuality. These systems also can be installed without solar collectors as stand-alone systems wherever it is not feasible to fix up collectors for want of space, clear sky etc.

a)Electric Heaters.
b)Gas Geysers.
c)Heat Pumps

Electric Heaters

Immersion type electric heaters can be fixed on the main calorifier tank or on auxiliary small tank positioned in series with the main tank.

Gas Geysers

Individual high performance gas geysers connected through plumbing lines, circulation pump and automatic temperature controller to the calorifier tank.  An auxiliary tank can also be used in series with the main calorifier tank. Yellowstone 8 lit./ min gas geysers are used in two to four in one tank.  Details…

Heat Pumps

The heat pumps work on the principle of reverse carnot reverse cycle principle with a compressor and heat transfer fluid.  The heat from the atmosphere is transferred to the water using the compressor and heat exchanger.  The power requirement is reduced to 30% of that being used by electric heaters.  The heat pump receives the water from the calorifier tank and send back water at 55 deg. C to the tank. The storage tank is an insulated tank which can be the same as the solar calorifier tank or an auxiliary tank.  

Products
Solar Water heaters
Solar Driers
Solar Photo Voltaic Systems



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