How Much Electricity Does a Geyser Consume? A Cost-Saving Guide

Posted by

Bijli Bazar

January 22, 2026

On September 23, 2025

That hot shower is a wonderful way to start or end the day, but have you ever seen your electricity bill and wondered, “Is my geyser the culprit?” You’re not alone. For many households, the water heater is one of the largest contributors to the monthly electricity cost.

But how much power does it really use? And more importantly, what can you do to reduce it? At Bijli Bazar, we’re here to clear the confusion and help you make smart, energy-efficient choices that save you money.

The Short Answer: It Depends on Three Key Factors

There’s no single number for everyone. Your geyser’s electricity consumption depends on:

Geyser Capacity (Litres): A 15-litre instant geyser will use less energy than a 25-litre one, which in turn is much smaller than a 100-litre storage geyser for a family.
Wattage of the Heating Element: This is the power rating. Common wattages are 1000W, 1500W, 2000W, 2500W, and 3000W. Higher wattage means faster heating, but also higher power draw.
Your Usage Patterns: How many people shower? How long are the showers? Do you use hot water for laundry or dishes? This is the most important factor you can control.

Let’s Do the Math: A Simple Calculation

Understanding your consumption is easy. Here’s the formula:

Units Consumed (kWh) = (Wattage of Geyser ÷ 1000) × Hours of operation

Let’s take a common example:

You have a 2000W (2kW) storage geyser.
It runs for about 2 hours a day to heat and reheat water.

Daily Consumption: 2 kW × 2 hours = 4 kWh (or 4 Units)
Monthly Consumption: 4 Units × 30 days = 120 Units

Now, multiply this by your electricity rate per unit (say, ₹6/unit in many areas):
Monthly Cost: 120 Units × ₹6 = ₹720 per month.

As you can see, the cost adds up quickly! A higher-wattage geyser or longer usage time will increase this number significantly.

Proven Tips to Reduce Your Geyser’s Electricity Bill

The good news is that you have significant control over this cost. Here are our top tips:

Switch to a 5-Star Rated Geyser: This is the most effective step. A BEE 5-star rated geyser has better insulation and a more efficient heating system, consuming significantly less power to heat the same amount of water. It’s a long-term investment that pays for itself.
Optimize the Thermostat: Setting your geyser temperature too high (e.g., 70°C+) wastes energy. A setting of 50-60°C is perfect for most uses and reduces standby heat loss.
Use a Timer: Don’t heat water 24/7. Use a timer to switch the geyser on only 15-20 minutes before you need it. Turn it off for the rest of the day, especially when no one is home.
Insulate Your Water Pipes: Insulating the hot water pipes from the geyser to your bathroom/kitchen reduces heat loss, meaning the water stays hotter for longer and the geyser doesn’t need to reheat as often.
Choose the Right Type and Size: An instant geyser (3-6 litres) is ideal for a kitchen sink or a single person. A storage geyser (10-25 litres) is better for bathrooms. For a family of 3-4, a larger storage geyser (50-100 litres) is more efficient than running multiple small ones.

Find an Energy-Efficient Geyser at Bijli Bazar

If your geyser is old or inefficient, upgrading to a modern, star-rated model is the best way to slash your electricity bills. At Bijli Bazar, we offer a wide range of energy-efficient geysers from top trusted brands like Canon, Midea, Golden Fuji, Nasgas etc.

Why shop with us?

Clear Comparison: Easily compare wattage, capacity, and star ratings to find the most efficient model for your needs.
Best Prices & Deals: We bring you the most competitive prices and special offers on energy-saving appliances.
Expert Guidance: Our product descriptions and filters help you make the perfect choice.

Frequently Asked Questions (FAQs)

Q1: Is it cheaper to turn the geyser off when not in use?

A: Yes, absolutely. Especially for storage geysers, switching it off after use prevents it from constantly reheating to maintain temperature, saving a significant amount of energy.

Q2: Which is more efficient: a storage geyser or an instant geyser?

A: It depends on usage. Instant geysers are more efficient for small, quick tasks (like washing hands) as they heat only what you use. Storage geysers are generally more efficient for larger, simultaneous needs (like family showers) as heating a larger volume of water at once can be more effective than an instant geyser running continuously.

Q3: What is the ideal temperature to set my geyser?

A: A temperature between 50°C and 60°C is ideal. It’s hot enough for comfortable use but not so high that it causes excessive scaling (mineral buildup) or energy waste.

Q4: How does a 5-star rating save me money?

A: A 5-star rating from the Bureau of Energy Efficiency (BEE) means the geyser uses advanced technology and better insulation to heat water with less electricity. This directly translates to lower units consumed on your electricity bill.