Don’t Get Burned: 10 Things to Check Before Buying a Solar Water Heater

Buying a solar water heater can be one of the smartest decisions for your home, your wallet, and the environment. But just like any big purchase, you don’t want to rush into it blindly. After all, you wouldn’t buy a car without a test drive—so why gamble with your solar system?

If you're in the market for the best solar water heater, you must evaluate the right factors to make sure you don’t get "burned" — figuratively and literally!

Let’s walk through the 10 essential things you need to check before buying a solar water heater, so you make a confident, informed, and cost-effective decision.

✅ 1. Know the Types: ETC vs FPC Solar Water Heaters

There are two main types of solar collectors used in water heaters:

• ETC (Evacuated Tube Collector): Works great in low sunlight and is cost-effective.
• FPC (Flat Plate Collector): More durable and performs better in hard water conditions.

🔍 Which is better?
If you're in colder regions, go for ETC. For long-term durability, especially in hot climates, FPC is more efficient.

Still confused? Varistor Solar offers expert guidance on selecting the right system for your location and needs.

✅ 2. Storage Capacity: Size Matters

Ask yourself:

• How many people will use the hot water daily?
• What appliances will it support (showers, washing machines, etc.)?

📦 Suggested Sizes:

• 100 Ltr – for 1-2 people
• 200 Ltr – for 3-4 people
• 300+ Ltr – for joint families or commercial use

Knowing your capacity ensures you never run out of hot water—or pay extra for capacity you don’t use.

💡 Tip: Varistor Solar has a variety of sizes including the popular solar water heater 200 ltr price starting from ₹25,000.

✅ 3. Check the Water Quality

Is your area prone to hard water? That means more minerals that can clog or corrode regular systems.

For hard water areas, choose:

• FPC with heat exchanger
• Systems with anti-scaling coating

Also look for a solar water heating system with glass-lined or stainless steel tank to prevent rust.

✅ 4. Warranty & Brand Reputation

Would you trust a random brand for something that lasts over 15 years? Of course not.

✅ Look for:

• 5+ years warranty on the tank
• 1+ year on accessories & installation
• A known brand with solid reviews

🎯 Varistor Solar is a trusted name in India with decades of experience in solar water heating systems for homes, hospitals, PGs, and more.

✅ 5. Understand the Cost Breakdown

Don't be fooled by a cheap upfront cost. Check for:

• Installation fees
• GST inclusion
• Maintenance support
• Tank insulation quality

📊 Solar water heater price range:

• 100 Ltr: ₹18,000 – ₹25,000
• 150 Ltr: ₹22,000 – ₹28,000
• 200 Ltr: ₹25,000 – ₹32,000

Ask for a detailed quotation that includes everything—even the "hidden" charges.

✅ 6. Is It BIS Certified?

Always choose BIS-approved (ISI-marked) systems. This ensures:

• Safety
• Government subsidies (if available)
• Better quality materials

Without certification, your solar geyser may be risky and inefficient.

✅ 7. Roof Space & Placement

Before you buy, check:

• South-facing roof (best for sunlight)
• Sufficient area (each panel needs 2–4 sqm)
• Shading from trees/buildings?

Also, confirm the weight-bearing capacity of your roof, especially if you're considering a solar water heater tank of 200+ liters.

✅ 8. After-Sales Service Matters

Good customer support means:

• Timely maintenance
• Quick replacement of faulty parts
• Expert guidance when needed

🔧 Look for service centers near your city. Try searching “solar water heater near me” and pick brands that offer local support—Varistor Solar does this brilliantly across India.

✅ 9. Compatibility with Backup Systems

What if it’s a rainy week?
You’ll need a hybrid solar water heating system with electric or gas backup.

Check for:

• Inbuilt backup rod
• Gas heating compatibility
• Timer-based control panel

This helps ensure hot water is always available—even during monsoons.

✅ 10. Energy Efficiency & Payback Time

Most solar water heaters save 60–80% on water heating bills.

🎯 Ask the seller:

• What’s the daily output in liters?
• How long does it take to heat water?
• How many sunny hours does it require?

The best solar systems offer payback in 3–5 years, after which you enjoy free hot water for life.

🌟 Bonus Tip: Buy from a Trusted Supplier

The biggest mistake? Buying from unreliable or unknown sellers.

👉 Varistor Solar provides:

• Free installation
• Genuine warranty
• Wide range of solar water heaters for homes, apartments, PGs, guest houses, and hospitals
• Transparent pricing with zero hidden charges

Whether you're in Mysore, Mumbai, or anywhere in India—Varistor Solar is a name you can count on.

📌 Final Thoughts: Make a Smart, Safe, and Sustainable Choice

Buying a solar water heater is not just about price—it's about trust, safety, and long-term comfort. Whether you're looking for the best solar water heater in India, or just want to lower your electricity bills, these 10 checks will guide you to the right choice.

Don’t compromise. Don’t get burned.

Take your time. Choose wisely. And when in doubt, contact Varistor Solar for honest advice and top-quality service.