In terms of the most eco-friendly and cost-effective ways to offer household hot water, the use of hot water heat pumps is ideal. While the majority of hot water heating units for residential applications makes use of resistance element technology, they tend to lack somewhat when it comes to energy efficiency.

To derive maximum savings, you must go for a hot water heating system or solar heat pump system, which has far more advanced and efficient design.

Some of the most fascinating features of a hot water heat pump are discussed below:

Compressor mechanisms, like those used in refrigerators, save for the fact that their configuration is in opposite direction. While a fridge flows heat from internal to the external direction, a heat pump pushes heat from atmosphere to the water tank.

How a hot water heat pump operates

One of the major benefits of a heat pump or solar heat pump over traditional electric heaters is that they are highly energy efficient. While a traditional heater requires 100% of its energy for generating heat, a heat pump is 5 times as effective and energy efficient.  This is referred to as a COP (coefficient of performance)

It’s down to the fact that, unlike a traditional water heating system, a heat pump does not require energy to make heat, but it transfers heat from one surrounding to the other. Working like a fridge in the reverse direction, a heat pump channels heat from the surroundings to the water container.

Therefore, a heat pump can easily transmit far more heat by consuming a lot less energy as compared to a conventional electric heater. Various studies reveal that an accurately installed heat pump can reach up to an efficiency level of 500 per cent.

Here is a general working overview of heat pumps and its benefits.

The heat pump absorbs air from its immediate surrounding and then stores it in a dedicated vessel called the evaporator. Within the evaporator, there’s an ozone-friendly refrigerant material such as Co2, which is used to generate heat.  

The refrigerant vaporizes.

The refrigerant has a low boiling point of -78 Degrees Celsius. Therefore, the air coming in direct contact with the refrigerant is good enough to boil it then converts in into vapours inside the tubes of the heat pump.

Refrigerant vapor is compressed

The vapourised refrigerant is pushed via a small valve. During this process, the gas is compressed, which results in generating a large amount of heat.  As the gas is pressurized, the volume is less and the amount of heat stay the same so the temperature goes up.

Heat transfer to the water container

During the next stage of a heat pump’s working, the heat generated by the refrigerant is passed on to the water container through a heat exchanger.

The refrigerant cools

While the heat gets transmitted from the heating tubes to the vessel, the temperature of the refrigerant starts to drop, falling back into its earlier state of liquidity. Then the refrigerant returns to the heat pump to repeat its customary cycle and generates heat continuously.

Solar augmented heat pumps

You can further boost the performance of your hot water system by attaching it to a solar panel to max out the capacity of the entire system as a whole. It’s a dream combination that can simply outscore all other types of heat pump systems by a fair margin.

During summers or warmer days when there’s nominal heating demands in residential properties, the solar panel can be utilised for providing heat, hence cutting significant dollars to your power bills.

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