Best Water Heater for Hard Water

  • 13 September

  • 3 Minutes Read

Best water heater Best water heater

When picking the right water heater for your house, it is essential to consider various factors. You want the best geyser for your space, one that lasts you for a longer time and one that efficiently heats the water. While we already shared a guide on picking the best water heater, before you make a purchase, you must also decide whether you want a storage water heater or an instant geyser for your residence. However, one of the biggest factors to consider when selecting a water heater would be picking the best geyser for hard water. You most definitely need the right geyser for hard water if you get water from different sources like borewells, tankers, and rivers. Before we talk about the perfect water heater for hard water, let’s understand what hard water is and how it affects the life of your geyser. 

Hard Water

The water is considered hard if it has a large proportion of calcium, magnesium, and other minerals dissolved in it. This means that high mineral content makes the water hard, which can damage your geyser internally as well as externally if you don’t have the best water heater for hard water installed. 

You can measure the hardness of the water in parts per million (ppm). If the water is between 60-120 ppm, it is moderate. If it is beyond 120 ppm, it is hard. 

How Hard Water Damages the Geyser?

Hard water could be one of the reasons why you need to replace your water heater. Here’s how hard water can affect your geyser’s health:

1. It can cause scaling: Hard water can cause scaling in your water heater. Due to this, the thermostat may cease to function. Besides this, scaling could also hamper the heating efficiency of the water heater. This means that your geyser would take longer than usual to heat even a small quantity of water, leading to higher electricity bills. Sometimes, scaling could even lead to a complete failure of the heating element. 

2. It causes corrosion: Hard water can ruin the geyser tank through the tangible parts’ corrosion. Salty water or excessive chlorine content in the water can deteriorate the surface coating leading to tank leakage and tank corrosion. This could severely affect the health of the geyser.  

3. Increases electricity bill: Hard water takes a long time to heat. This means your geyser would have to run for longer to heat the water. This entire process leads to higher electricity bills. 

4. It can lead to sedimentation in your water heater: When hard water is heated, it leaves the mineral residue on the tank’s surface in the form of sediments. As a result of this, your water may make a rumbling sound every time you switch it on. 

Factors to choose Geysers for Hard Water

1. Energy Efficiency: If you are looking at buying a new water heater, then one of the features that the best electric geyser for hard water would have is energy efficiency. Pick a geyser with a higher Bureau of Energy Efficiency (BEE) star rating. Ideally, a 4-star or 5-star rated product can optimize energy usage and positively impact your electricity bill. 

2. Tank Quality: A glass-lined tank is better than a metal-lined tank. In the case of hard water, this will prevent corrosion, thereby increasing the life of the geyser. You must also buy the geyser from a reputed brand that offers a minimum warranty on the product and assists you with good after-sales service. 

3. Family Size: Another aspect where we often get mistaken in selecting the best geyser for salty water is the size of the geyser. For a family of 2-3 people, 10-15 litres of tank storage should be okay. For more than 4 people, 25 litres and above is recommended. 

4. Weather Conditions: Weather is another factor that should be considered while selecting the best gas geyser for hard water. If you face moderate temperature, like around 15-20 degrees, 6-10 litres of tank storage is sufficient; however, if you live in an extremely cold place, 50 litres capacity is suggested. 

How to Maintain a Geyser’s Health?

Water Heater for Hard Water

While hard water can be damaging to your geyser, there are certain preventive measures that you must carry out to increase its lifespan:

1. Service the water heater regularly: One of the best ways of preventing corrosion is to get your water heater serviced twice a year. Servicing your water heater every six months reduces the chances of corrosion on the rod. This results in efficient heating, durability and greater savings. 

2. Use water softeners: A water softener softens the magnesium and calcium content in hard water. Softeners can prevent salt formation on geyser walls. Moreover, hard water is not even good for your hair and skin, so the softener will eliminate any damage to you too. 

3. Opt for geysers with corrosion-resistant features: If you live in a hard-water-prone area, then it is best to choose geysers that boast corrosion-free bodies. Look out for features that protect the tank and healing element from rusting. Crompton’s Amica storage water heater comes with a specially designed sacrificial anode rod which has a stainless steel core that is designed to protect the inner tank from corrosive elements. 


Crompton’s water heaters are smart, efficient and safe. They boast features that ensure you don’t rake up your electricity bill and get hot water efficiently. The Solarium Qube Storage water heater comes with an advanced 3-level of safety to prevent any hazard like electric shocks. All Crompton water heaters provide faster water heating while being energy efficient. Both, the Amica storage geyser and Solarium Qube storage geyser, have been given 5-stars for saving energy. They both have a rust-free body so you no longer have to worry about things like corrosion. 

Get yourself these smart water heaters and drive away the worries of hard water heating at home!