Geyser Running Cost Calculator
See what your water heater actually costs to run. Enter the hot water you use, the inlet-to-target temperature rise and your ₹/unit tariff — get the electricity used and the running cost per day, month and year, then compare electric, gas, heat-pump and solar. Indicative India 2026 — confirm your own tariff.
Your hot water & heater
Comparison assumptions
Heating 160 L by 30°C needs about 5.58 kWh of useful heat per day. Electric storage adds standby tank loss; gas is priced on LPG; heat-pump and solar cut the electricity drawn. Indicative — confirm your tariff, LPG rate and usage.
Electric storage — running cost / month
₹0
about ₹51/day · ₹18,633/year
Energy / day
6.4 kWh
electricity per day
Cost / day
₹51
at your tariff
Cost / year
₹18,633
running cost
Savings
baseline
vs electric storage
Running cost per year by heater type for the same hot-water demand. Solar payback ≈ 1.9 yr vs electric storage (₹25,000 indicative install). Confirm your own numbers.
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Go deeper
Estimates are indicative for India 2026 and depend heavily on your real usage, inlet temperature, tariff slab and appliance efficiency. Standby loss, heat-pump COP and solar fraction vary by model, climate and season. Treat this as a planning guide and confirm your actual electricity tariff, LPG rate and geyser rating before deciding — the cheapest option on paper still needs the right capacity and safe installation.
Frequently asked questions
- How does the geyser running cost calculator work?
- It works out the energy needed to raise your water from the incoming (inlet) temperature to the target temperature, based on how many litres of hot water you use. Heating one litre by one degree needs a fixed amount of energy, so the tool multiplies your daily hot water by the temperature rise, converts that to electricity units (kWh), then multiplies by your ₹ per unit tariff to give cost per day, month and year.
- What inputs do I need and what tariff should I use?
- You need your daily hot water use in litres, the inlet water temperature (roughly 15 to 25 degrees in winter, higher in summer), the target temperature (a comfortable 40 to 45 degrees is usually enough for bathing) and your electricity tariff in ₹ per unit. Tariffs vary widely by state and slab, typically around ₹6 to ₹9 per unit, so check your latest electricity bill for the exact figure that applies to you.
- How accurate is the running cost estimate?
- Treat it as an indicative planning figure, not an exact bill. Real cost depends on standing (tank) heat loss, thermostat cycling, geyser star rating and efficiency, and how hot you actually set the water. Solar and heat-pump savings also depend on weather and usage patterns. Use it to compare options and size expectations, and verify against your own metered readings and manufacturer efficiency data.
Related Guides — Deep-dive reading
Heat Pump Water Heaters in India: The Most Efficient Way to Heat Water
How a heat pump water heater moves heat out of the air to warm your water at roughly a third of a geyser's electricity bill — integrated vs split units, tank sizing, where it suits, install needs, and the real payback.
PlumbingGas Water Heaters (LPG & PNG Geysers) in India: Instant Hot Water — Done Safely
How instant gas geysers make endless hot water on demand, LPG cylinder versus piped natural gas, sizing by litres-per-minute and temperature rise, and the ventilation and flue rules that keep carbon monoxide out of your bathroom.
PlumbingHot Water Systems Guide (India): How to Choose the Right Water Heater
Electric, gas, solar or heat-pump? Central or point-of-use? A homeowner's how-to-choose overview that compares every water-heating option on upfront cost, running cost and where each one actually suits an Indian home.
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