Cost Saving in
Heat Pump Water Heater vs Other Water Heater

Capacity in Litres

Cold water Temperature

°C

Power Cost per Kwh

₹/kWh

Diesel Cost per Litre

₹/L

Wood Cost per Kg.

₹/kg

Number of days working

Days

Setting Temperature

°C

Temperature to be increased

°C

Water Heater Type	Amount in Rs.	Savings in Rs.	Savings in %
Heat Pump Water Heater	12732.56	0.00	0%
Electric Water Heater	50930.23	38197.67	75%
Diesel Boiler	29017.50	16284.94	56%
Wood Boiler	12775.00

1. The Customers have to enter the following:

2. The Savings calculated for One year.

3. Assumed the Setting temperature as 55°C.

4. The COP of Heat Pump is considered as 4.

5. The calorific value for Diesel is considered as 10000 Kcal per Litre.

6. The Calorific value for Wood is considered as 3000 Kcal per Kg.

7. Assumed the Solar water heater is worked 30% of days in a year with backup heating element.

The values are applicable subject to specific test conditions only.