| Sr. |
Name of company |
"AVIN"® |
Company X |
Company Y |
|
1 |
Experience in solar water heaters in years |
Since 1980 |
? |
? |
|
2 |
Quality of hot water |
Hottest |
Hot |
Warm |
|
3 |
Highest Temperature at which? |
60 to 80 deg. C. |
50 to 60 deg. C. |
30 to 40 deg. C. |
|
4 |
Quantity of water / collector |
100 to 150 litres |
80 to 100 litres |
60 to 80 litres |
|
5 |
Area of collector |
2 sq. mtrs |
? |
? |
|
6 |
Chemical change in water after heating |
Better for health, salts removed, demonized |
? |
? |
|
7 |
Life Span of System |
15 years |
? |
? |
|
8 |
Life Span of Collector |
15 years |
? |
? |
|
9 |
Basic material used |
Bit higher-copper |
? |
? |
|
10 |
Maintenance per year Plumber friendly |
Every 5 years yes |
Unbearable no |
100 % replacement |
|
11 |
Life span- according to water quality |
10 to 15 years |
? |
? |
|
12 |
Resale value after life span |
Scrap value of copper on that day : good |
? |
? |
|
13 |
Payback period of system |
2 – 3 years |
? |
? |
Company established by Mr Avinash Brahmbhatt. Operations of the firm date back to 1969 when the firm was engaged in manufacturing and marketing of chemicals, petrochemicals, engineering goods and electricals. In 1980 the firm entered the field of non-conventional energy.