Solar Water Heater Cost Estimator
Estimate the price, capacity, and yearly savings of a solar water heater for your home. Enter your family size and your current gas or electricity bill to get a recommended tank size in liters, a typical installed price range in PKR, estimated yearly savings, and the payback period in months.
These are estimates based on typical market rates in Pakistan for standard evacuated-tube systems. Final prices depend on brand, tube quality, tank insulation, and installation conditions. Savings assume about 35% of the entered bill goes to water heating and that the solar system covers about 75% of that.
How to use
- Enter the number of people in your family — the calculator uses about 35 liters per person per day to pick the nearest standard tank size.
- Choose what currently heats your water (gas, electric, or both) and enter your average monthly bill in PKR.
- See your recommended tank size, the typical installed price range in PKR, estimated yearly savings, and the payback period in months.
- Use the results to compare brands and ask installers for quotes — treat the figures as planning estimates, not final quotes.
Note: capacity uses 35 liters per person per day, rounded up to the nearest standard size (80 / 100 / 150 / 200 / 250 / 300 / 400 / 500 liters). Payback = estimated system cost divided by estimated monthly savings. Results are planning estimates only.
Related tools
- Solar Payback Calculator Pakistan — find the payback period of a full solar panel system.
- Winter Solar Output Estimator — see how much solar output drops in winter.