Nuetech Heat Pump Water Heater

What is a Heat Pump Water Heater, And What Are Its Components?

Nowadays when energy costs are inflating rapidly, Heat Pumps are just perfect for all your hot water needs. Surpassing the traditional water heating methods including electric water heaters and fossil fuels, heats pumps are in-expensive and eco-friendly too. Other than providing 24/7 hot water, heat pumps can save you up to 70% on electricity bills. So, what is a heat pump water heater, its components and how does it work? Heat pump water heaters don’t generate heat, instead, they use electricity to move heat from one place to another. Therefore, they are 2-3 times efficient than regular (electric) water heaters. Simply put, heat pumps work like a refrigerator in reverse to move heat.

Heat Pump Basics

If you are planning to buy heat pumps, you need to understand that heat pumps do not generate heat, instead, they transfer heat from one place to another. Unlike a furnace, heat pumps extract heat from outside and transfer it indoors. Regardless of weather conditions, heat pumps work in all climates. Here’s more about Air source heat pumps. However, heat pumps are yet an under-appreciated home appliance. There are different types of heat pumps and they account for roughly 25% of all your energy bills for a thousand dollar job. Here is more about heat pumps, what they include and how they work.

Heat Pump Components

An air-source heat pump usually comprises two major components including an outdoor unit and an indoor air handler unit. These are the major systems & components that are used in heat pumps:

  • Evaporator
  • Refrigerant
  • Compressor
  • Condenser
  • Expansion Valve
Mechanism
  • The operation begins with air transferred through an ‘evaporator’ which contains liquid ‘refrigerant’, using the fan
  • The refrigerant then evaporates into a gas and extract heat from the air
  • The warm gas (refrigerant) then transfers through the compressor, resulting in increased pressure and becoming a hot gas
  • This hot gas passes through the heat exchanger *(condenser) and transfers the heat to the attached water tank
  • The gaseous refrigerant then cools down in the condenser and turns into a warm liquid
  • This warm liquid then goes into an expansion valve - becomes cool - and transfer to the evaporator again
  • The cycles continue in the same manner
  • Heat pumps continue absorbing heat from the air and transfer it to the water tank till it reaches the desired temperature
  • How Heat Pump Works

    If you are planning to buy a heat pump, it is better to understand how it operates. For example, an air-source water heater absorbs heat from the surrounding air and transfers it into a tank to heat water. That’s just a quick summary. Here is how the heat pump works:

    Operation begins when a fan placed on the top of the heat pump water heater transfers air across a radiator-like grid filled with refrigerant (cool liquid) in a closed tubing system. The refrigerant right now has a low boiling point, and heat air raises its temperature to convert it into a gas.Another pump transfers & circulates the tubes filled with hot compressed air down and around the water tank to heat water. This procedure heats the water and converts the gas back into liquid when it is pumped back to the radiator, and the fan starts again. In short, traditional water heaters produce heat but a heat pump water heater just transfers it from one place to another.

    Heat pump water heaters consume electricity to provide 24/7 hot water, but the amount of electricity consumption is typically less than a regular electric unit. Grid power is required to run the fan and the compressor. Additionally, most heat pump water heaters (hybrid water heaters) come with an electric heating element in the water tank that provides back-up hot water during very heavy usage. Though, Air-source Heat Pumps provide enough hot water eliminating the need for back-up electric power.

    An LED control panel on the top of the HPWH allows the users to set the water temperature and choose between multiple modes, such as heat-pump only mode, all-electric mode, and hybrid mode. The last comes as a combination of two and often used during high demands of hot water.

    Air Source Heat Pump Water Heater

    An air-source heat pump water heater is perhaps the most efficient way to get 24/7 heat water at a low cost. It simply absorbs heat from the water and transfers it to the water tank to heat water. Also, the mechanism of the air source heat pump water heater is simple:

  • The air source heat pump absorbs the air from the outside air to heat the cool liquid refrigerant.
  • The pump consumes electricity to compress the liquid to increase its temperature. Later it condenses back into a liquid to release stored heat.
  • It transfers around the tank and heat water

  • An air-source heat pump water heater uses the air in the house to produce hot water, therefore, it is more efficient than the electric water heater. If you are planning to buy a heat pump water heater, check out the guide.


    Selecting the Right Heat Pump

    Here are a few things to keep in mind to pick the right pump. Heat pump water systems may have a higher installation cost than traditional water heaters. However, they have lower operating costs, which can offset purchasing and installation costs. You can choose from different types of heat pump water heaters ranging from built-in water tanks and back-up resistance heating elements. Though the best among them is the air source heat pump water heater that combines heating, cooling, and water heating. While they are removing heat from the air, any type of air-source heat pump system works efficiently.

    Before buying a heat pump water heating you may consider the following:

  • Size and first-hour rating
  • Fuel type and availability
  • Energy efficiency
  • Overall costs
  • Being the best heat pump company in Bangalore, we can help you in selecting and installation of the right heat pump as per your needs. You can call us but gauge through the benefits of heat pumps first.

    Are Heat Pumps Worth The Investment

    The advantages speak loud that “Yes, the heat pumps are worth investment”. Additionally, if you are currently using gas or oil-based heaters to provide heat to your home, opting for heat pumps will not just be more energy efficient but also help you save electricity bills. Heat pumps are way better than traditional ways to heat water including electric heaters.

      Unique Benefits Of Heat Pump Water Heater
    1. An Eco Friendly Alternative : Increasing energy costs of gas, oil and electrical conventional heating systems , coupled with the need to meet CO2 emission targets has resulted in the growing interest for dedicated heat pumps. Rather than burning fossil fuels to produce heat and consequently CO2 emissions, dedicated heat pumps use renewable energy from the environment like air, ground and water. They consume up to 70% less primary energy and therefore drastically reduce the pollution resulting from the use of fossil fuels.
    2. Energy Efficiency : Heat pump water heater offers the highest levels of energy efficiency with the ability to provide 3-4kW of heat energy for every 1kW used.
    3. Weather Compensation : Weather compensation can detect changes in outdoor ambient conditions, allowing the heat pump to adjust the water temperature. This ensures the right comfort temperature. This ensures the right comfort temperature is produced without excess energy wastage.
    4. Low Running Costs : The more energy efficient a heating system is, the cheaper it is to run. Heat pump water heater offers the cheapest available kW/h rate for hot water heating.
    5. Applications : It can be best used in domestic and household, hospital, industries, swimming pool heating, restaurats and other requirements.

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