Jain Solar Water Heating System - Frequently Asked Questions

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).

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

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

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

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.

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

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.

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.

How much money do we have to spend for maintenance ?

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

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

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.

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