Based on heating 100 liters of water from 15° to 65° C
No.
Fuel
Calorific value of Fuel
Efficiency Considered (%)
Price (Rs.)
Cost to produce 100 ltrs. Warm Water (Rs.)
Total expenses per day for an average requirement of 20 ltrs. of hot water per person (Rs.)
1.
Wood (Dry)
3900 Kcal / Kg.
60 %
2-50/kg
5.35
1.07
2.
Charcoal
5500 Kcal/kg.
70 %
9.00/kgs
11.68
2.33
3.
Kerosene
9110 Kcal/kg.
65 %
28.00/kgs
23.62
4.72
4.
Cooking Gas
11700 Kcal/kg.
75 %
22.00/kgs
12.55
2.51
5.
Electricity
860 Kcal/Kwh
95 %
4.50/Kwh
27.54
5.51