What is a heat pump water heater and how does it work?

Heat pump water heaters

Winter is the favorite season of many. But do you remember those chilly early mornings when you had to bathe before going to work? How desperately you waited for the hot water then. The significance of hot water is understood during the wintry days.

With the advancement of technology, several devices made their mark in the market and have been a boon to humanity. Be it geysers or water heaters—however, every time the heating water has to lead to substantial pollution on the environment. Besides, corruption in the cost of the generation of hot water has been enormous. Even today, many families use vintage archaic technology to heat water.

And ultimately, a few years back, the most efficient technology stepped into the market; the hot water heat pumps.

What is a heat pump water heater?

They are devices that help in cooling or heating rooms. They transfer heat from one location to another without the generation of heat directly. They are the newest up gradation in the world of heaters. They also use the refrigeration mechanism in reverse order to transfer the heat.

How does a heat pump water heater work?

The concept of heat pump water heaters is unique in itself. The primary operating principle is the same as a heat pump modified as absorption of calories present in the outside air and incorporating the energy to heat water.

The steps involved in the entire operation are:

  1. A fan is fitted in the device that draws in surrounding air and shifting its energy to a refrigerant present in the evaporator.
  2. By the above process, the moisture is converted to gas.
  3. The gas from there is further subjected to heat by compression in the condenser.
  4. The total heat from the previous steps is transferred to a water tank where it gets converted to liquid again due to its coldness.
  5. The expansion valve controls the excessive pressure of the water.
  6. There is an electrical heating mechanism that acts like a back system for emergency scenarios.

Heat pump water heater efficiency

To judge a heat pump’s performance, a measurement procedure is developed known as the energy factor (EF). The value is obtaining by monitoring the generation of hot water per unit a day. EF also consists of:

Recovered efficiency- it is referred to the efficiency in transferring heat from source to the destination.

Standby losses are referred to as the amount of heat lost per hour compared to the original heat content of stored water.

Cycling losses- this component of the process encounters for the loss of heat due to flow of water through the various outlets.

If you are looking for a practical heat pump, do not forget to check its efficiency. The average EF of a heat pump is 2.0 compared to the gas storage system’s EF of 0.65.

Adding on to your surprise, these heaters are electric heat pump water heaters. Thus, you will not only get water at a cheaper rate but also in the purest form. Even by using electricity, the chances of burning exhaustible resources decreases; thus, pollution decreases.

How much will you save from a heat pump water heater?

Heat pumps are ubiquitous and are found in almost every in the United States of America, the quantity of them being less than 55 gallons. Reportedly, the energy expense savings can go up to $8 billion in a year.

For a family of four, a heat pump can save up to $330 per year.

How much a heat pump will cost you?

When it comes to money, everyone desires to own a cost-effective and superior device in performance. But, rarely do you find such a combination in one machine. However, an electric heat pump water heater is one such device of your choice. A heat pump less than 55 gallons might cost you $1,000. If you buy an older version, then it can be as less as $300.

Ways to reduce the usage of hot water

Fixation of leakages:

The minor leaks in pipelines can turn major fault with time. A considerable loss of water takes place through these leak areas. Therefore, do not neglect them.

Usage of low-flow fixtures:

Modification in showerheads and faucet openings can help you save a huge amount of water from day-to-day. By the union standards, the flow cannot exceed more than 2 gallons flowing every minute. The new innovative fixtures cannot exceed the set standards are even pocket-friendly.

Final words

By now, you might have understood the role-play of heat pump water heaters and the way they are superior to the traditional heating devices. With that viewpoint, it’s your time to take a small step towards a long term saving future. The initial cost of the establishment might be high, but you will save more than you expect over the years. Happy buying.

Author: Kristin Klane

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