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Jain Solar Water Heating System - Frequently Asked Questions


What is Solar Water Heating System ?

What is the maximum possible temperature it could attain ?

Can it be installed any where ?

Does it generate hot water on all days and in all seasons of the year ?

Can we use any type of water such as municipality treated water, bore well water or tank water ?

What about pipelines ?

Are there different types of SWHS ? If so, how to select the best one ?

You said that the hot water will be available for 300-325 days in year. How about the rest of the days.

How much money do we have to spend for maintenance ?

Are there any governmental incentives, subsidies, loans etc. ?

How many hours are required to heat the water ?

What are the various capacities available ?

• What is Solar Water Heating System ?

The system which turns cold water into hot water with the help of sun's rays is called Solar Water Heating System (SWHS).

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• What is the maximum possible temperature it could attain ?

About 60 to 80º C. The rise in temperature depends on:-
- Solar Radiation
- Weather Conditions
- No. of Solar collector

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•Can it be installed any where ?

Yes, it can be installed on.
- Roof tops
- Building terrace
- Open Ground

There should be :
- No shadowing
- South orientation of the collectors
- Collector Tilt = Latitude + 150 thereof
- Over head tank above SWHS system

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• Does it generate hot water on all days and in all seasons of the year ?

It generates hot water on
- Clear sunny day - Maximum
- Partially cloudy day - Moderate

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• Can we use any type of water such as municipality treated water, bore well water or tank water ?

Only soft and potable water.
- hard water with special jacket type heat exchanger or with softener.

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• What about pipelines ?

Galvanized steel pipes of class "B" for cold water line & precast PUF insulated. HDPE Pipe with "B" class Galvanized pipes for Hot Water Lines

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• Are there different types of SWHS ? If so, how to select the best one ?

Yes the best systems are those with
- high quality material for long life,
- good workmanship to make collector water proof and dust proof,
- high efficiency.
- For more details, please see comparison sheet.

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• You said that the hot water will be available for 300-325 days in year. How about the rest of the days ?

Every SWHS can be provided with auxiliary back up heating system by Electrical heater at extra cost.

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• How much money do we have to spend for maintenance ?

Maintenance is negligible
- Periodic glass cleaning
- Check for leakages and valve functioning, if any.

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• Are there any governmental incentives, subsidies, loans etc. ?

Yes
- Soft loans from Bank & BAFL at low interest.
- 100 % depreciation tax relief for profit making companies.
- No Sale Tax, Excise & Octroi on SWHS

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• How many hours are required to heat the water ?

- Normally, 6 to 7 hours of normal solar radiation is required to heat the water upto 60°C.

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• What are the various capacities available ?

- 75, 120, 150, 250, 300 & 450 LPD
- 100, 200, 300, 400 & 500 LPD.
Higher capacity systems as per specific requirements can be supplied in above model

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