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Solar Water Heater – The Smartest Way to Heat Water in India

With electricity and gas prices rising every year, Indian households are switching to solar water heaters — a clean, cost-free, 25-year solution for hot water.

A solar water heater uses sunlight to heat water and supply it directly to:

  • bathrooms
  • kitchens
  • washing machines
  • overhead tanks
  • commercial buildings

Once installed, it gives you free hot water for decades.

Why Choose a Solar Water Heater?

Zero electricity cost

Heats water purely using sunlight. Completely free.

Works even on cloudy days

Retains heat using special insulated tanks.

Perfect for Indian homes

Designed for hot climate, dust, and hard water.

25+ year lifespan

One-time installation → decades of savings.

Ideal for both home & business use

Homes, hotels, PGs, hostels, restaurants, schools.

Saves ₹2,000–₹8,000 per month

No geyser usage = major savings.

Types of Solar Water Heaters in India

Evacuated Tube Collector (ETC) Solar Water Heater

Most popular in India.

ETC systems use glass tubes that heat water directly.

Best For:

Pros:

  • Low cost 
  • Fast heating 
  • Works in winter 
  • Easy maintenance 

Cons:

  • Not ideal for commercial heavy usage

Flat Plate Collector (FPC) Solar Water Heater

FPC systems use metal plates + copper pipes for faster heating.

Best For:

Pros:

  • Works well with hard water
  • Very durable
  • Long life
  • High efficiency

Cons:

  • Costlier than ETC

Pressurized Solar Water Heater

Best for multi-story homes, villas, and high-pressure bathroom fittings.

Pros:

  • Supports rain showers / Jacuzzi
  • Ideal for multi-floor water pressure
  • Premium performance

Cons:

  • Higher price, but longer life

Solar Water Heater Price in India (2025)

Most homes in India choose 150L or 200L systems.

Capacity ETC Price (₹) FPC Price (₹)
100 Liters 18,000 – 28,000 32,000 – 45,000
150 Liters 24,000 – 32,000 42,000 – 55,000
200 Liters 30,000 – 40,000 55,000 – 75,000
250 Liters 40,000 – 55,000 75,000 – 95,000
300 Liters 50,000 – 65,000 95,000 – 1,25,000

Which Solar Water Heater Size Do You Need?

Family Size Recommended Capacity
2–3 people 100–150 liters
4–5 people 200 liters
6–8 people 250–300 liters
Hotels/Hostels 500–5000 liters

Solar Water Heater Installation – What’s Included?

How Much Can You Save?

A solar water heater can reduce your electricity bill by:

For families with geysers, savings are much higher.

Maintenance Requirements

Solar water heaters are low-maintenance:

Apna Solar offers AMC packages too.

Solar Water Heater vs Electric Geyser

Feature Solar Heater Electric Geyser
Running Cost ₹0 High
Life 20–25 years 5–7 years
Hot Water All day Limited
Environment Eco-friendly High power use
ROI 2–3 years None

Solar Water Heater – Ideal for These Properties

FAQs About Solar Water Heaters

Yes. ETC and FPC both give hot water even in cold months.

You get hot water stored in the insulated tank, usable at night.

Yes — the system retains heat and still works with diffused sunlight.

Choose FPC type, perfect for hard water areas.

Normally 2–4 hours depending on sunlight.

Want to Reduce Your Electricity Bill?

Get a FREE solar savings report within 30 minutes.

Why Choose Apna Solar?

Ready to Install a Solar Water Heater?

Get FREE home visit + best price quote today. Apna Solar – Apna Ghar, Apna Power.