Heat Water Using Heat Pump’s Advanced Technology

Are you tired of paying high electricity bill every month? Have you heard about heat pumps? A heat pump is a water heater. It’s advanced technology helps it to work efficiently while consuming significantly less amount of electricity. It is eco-friendly and energy-efficient alternative to meet your hot water needs. 

In this blog, we will discuss in detail about heat pump systems, and why it the best solution for every Indian home. Let’s get started!

What is a Heat Pump?

A heat pump is a water heating device, to meet your daily hot water needs. It is energy-efficient, as it uses less electricity than other traditional water heaters. The difference lies in the working principle. Any traditional water heater, like a geyser, uses direct electricity to heat water. Whereas, a heat pump uses electricity to only transfer heat from one place to another. This heat is used to produce hot water, rather than electricity. 

What is a Heat Pump? How does a heat pump work?
Install a Heat Pump

How Does a Heat Pump System Work?

A heat pump works on the principle of transferring heat from one place to another.

This system consists of two main components: an indoor unit and an outdoor unit.

The outdoor unit has two parts – an exhaust fan and a compressor. The indoor unit is the storage tank, where water is stored.

The exhaust fan absorbs heat from the surrounding air, while the compressor compresses the refrigerant gas, increasing its temperature. This heated refrigerant gas then passes through a spiral condenser inside the indoor unit, transferring its heat to the water stored in the tank. This process continues until the desired water temperature is reached.

Unlike traditional geysers that use a significant amount of electricity to generate heat, heat pumps consume less energy by simply moving heat from one place to another. This advanced technology makes them more energy-efficient and cost-effective in the long run.

Why Choose Heat Pumps Over Other Water Heaters?

In India, there are mainly 3 types of water heaters that are used largely – geysers, solar water heaters and heat pumps. Let’s discuss each water heater to understand why heat pump would be the best choice for your home. 


Geysers are the most popular choice of water heater for most Indian homes, as it has a lower upfront cost. But it is actually very costly. This is because it consumes huge amount of electricity to work efficiently. this makes it very costly in the long run. It uses direct electricity to heat water. it not only increase your expenses, it also affects the environment negatively. Using geysers result in many serious environmental issues like greenhouse gas emissions, carbon footprint, global warming, pollution and many more.

So it is very important to replace the geyser and install an energy-efficient water heater, which not only will save cost, but also help achieve sustainability for ourselves and the generations to come. 

Now let’s discuss about solar water heaters and heat pumps, why they are better than geysers.

Solar Water Heaters

Solar Water Heaters do not use electricity at all. It is 100% renewable. It has a solar panel, which absorbs sunlight, which is used to heat water. While it is a great choice to save money and achieve sustainable goals, it does have a few drawbacks. Firstly, it is dependent on sunlight. If you live in an area where there isn’t enough sunlight, or there is a cloudy day, solar water heaters aren’t efficient. Due to lack of sunlight, solar water heaters will not be able to provide hot water.

Also, these systems take 6 long hours to heat water. It takes the entire day time to heat water, when there is sunlight. So it can only provide you with a fixed amount of hot water, which is the capacity of the tank. 

So solar water heaters will save you a lot of cost and has a positive environmental effect, but may not always be efficient in meeting your hot water needs. 

Heat Pumps

These systems do use electricity, but when compared to geysers, they consume 75% less electricity. This will save you bucks on your monthly electricity bill. It may have high upfront cost, but it is justified given its lower electricity consumption. This is actually cost-effective in the long run. 

Comparing it with solar water heaters, heat pumps are not dependent on sunlight. It’s advanced technology allows it to absorb heat from the surrounding air even in extreme cold climates. Not just that, it takes only 3 hours to heat the water. Plus, heat pumps are regenerative. Which means that its capacity is not fixed. It will keep producing hot water, once the storage tank is empty.

There is also another type of water heater which is the hybrid water heater. It is basically a combination of both heat pumps and solar water heaters. It uses heat pump’s advanced technology and solar water heaters’ advantages. To learn more about the water heater types, and which one would be best for your home, watch the video below:

What are the benefits of Heat Pump Water Heaters?

Heat pumps offer numerous benefits, making them an excellent choice for sustainable and cost-effective water heating:

1. Cost-Effective

Heat pumps have high upfront cost. However, they make up for it through lower operating costs. Heat pumps transfer heat rather than generating it directly. This uses far less electricity – up to 75% less. Over its 10-15 year lifespan, a heat pump can save you hundreds or even thousands in energy costs. So it is actually a cheaper alternative to other traditional water heaters like geysers. By leveraging the latest technological advancements, heat pumps can save a significant amount of energy and cost.

2. Long Lifespan

With proper maintenance, heat pumps last 15 years or more – significantly longer than standard electric geysers (8-10 years). So there is no need for replacement for a long time. This extended life cycle also contributes to it being a cost-effective option.

3. Reduced Water Wastage

Traditional water heaters constantly heat and reheat the same water, leading to significant energy losses. Heat pumps heat water more efficiently, so you don’t have to run the tap as long waiting for hot water. This conserves water, especially in households with long pipe runs.

4. Positive Environmental Impact

By consuming significantly less electricity than conventional water heaters, heat pump water heaters have a lower carbon footprint and contribute to reducing greenhouse gas emissions. This positive environmental impact is achieved by relying on renewable energy sources (ambient air) and minimizing the use of fossil fuels for power generation. Additionally, the longer lifespan of these systems further reduces the environmental impact associated with manufacturing and disposing of water heaters.

5. Efficient in Cold Climates

One common misconception about heat pump water heaters is that they may not perform well in colder climates. However, modern heat pump water heaters are designed to be efficient even in low temperatures. They can effectively extract heat from the surrounding air, even when the temperature drops below freezing. This makes heat pump water heaters a viable and energy-efficient option for hot water needs in various climates, including colder regions.

6. Manual Temperature Setting

Most heat pumps allow you to change temperature as per your requirements. This ensures you have hot water when needed without wasting energy by overheating the water beyond your requirements.

7. Availability in Different Sizes

Heat Pumps normally have an indoor and an outdoor unit. But many homes in India, specially in big cities, may not have that space available. For that, a single-unit heat hump is designed. It is also called Integrated Heat Pump.


By embracing the advanced technology of heat pumps, you can not only meet your daily hot water needs but also contribute to a more sustainable and energy-efficient future. Solar Water Heaters and hybrid water heaters are also a great choice for your homes, but heat pumps are the most efficient ones. It is now time for India to invest in heat pumps for a sustainable future. 

Visit SolarClue® to see the best heat pump water heaters. SolarClue® is an online marketplace where solar energy products are sold at discounts up to 50%.

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