What are Heat Pump Hot Water Systems?

What are Heat Pump Hot Water Systems?

If you are looking for an energy-efficient and environment-friendly hot water system but you do not have the space for solar hot water collectors, a heat pump hot water system is the best hot water heater option for you. Heat pump hot water heaters only use about one-third of the energy that electrical hot water systems use. There are many available heat pump hot water heaters in the market. The hot water industry leader has the Rheem MPi-325 Series II Heat Pump. While with many review sites, Evoheat Evo270 heat pump hot water system is a customer favourite. Other mostly searched brands also include Sanden Heat Pump and Bosch Heat Pump Hot Water.

What are the benefits of a heat pump hot water system?

  • Electricity enables the heat pump hot water system to operate. However, it uses less power in kilowatt-hours than typical electric hot water systems. It also produces as much as 5 times more renewable energy compared to the amount of energy it uses to run the system.
  • You won’t need a large roof space to accommodate solar panels.
  • Heat pump hot water installation allows easy changeover when you are replacing an electric hot water system because it uses the same setup and connections.

What are the parts of a typical heat pump hot water system?

  1. Hot Water Storage Tank – it stores the hot water 
  2. Heat Pump Module – It contains the fan, evaporator, refrigerant, and compressor

How does a heat pump hot water system work?

When you buy a heat pump hot water heater, it is important to understand how does a heat pump hot water system work. 

  1. The system’s fan extracts heat from the surrounding air and transfers it to the evaporator.
  2. The evaporator stores the refrigerant. The air comes in contact with the refrigerant and heats it. The refrigerant has a boiling point of -26°C. Thus, the air drawn into the system can transform the refrigerant from a liquid into a gas state.
  3. As air warms the refrigerant, the gas refrigerant or vapour moves towards the compressor. The compressor increases the pressure on the vapour which further turns it from gas to a superheated liquid. 
  4. The heating coil receives the superheated refrigerant. It is important to note that the heating coil surrounds the hot water tank. The heating coil transfers the heat from the superheated refrigerant to the cold water.
  5.  After the refrigerant transfers all its heat, it returns to its gas state and up towards the evaporator. The heating processes from 1-4 repeats until all the hot water in the tank reaches the set hot water temperature.
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What is the best heat pump hot water system?

In order to choose the best heat pump hot water system, you need to consider the following factors, as you would also do with other hot water system types:

  • The Capacity of the Storage Tank.
  • Availability of Electricity to Operate the Heat Pump Hot Water System
  • Installation and maintenance costs. Installation costs would vary depending on your location. It is important to remember that your location would be an essential factor for an installation of a heat pump hot water system. Locations with colder climates, particularly those who maintain less than -5 degrees are not compatible with heat pump hot water systems. Thankfully, the ACT and New South Wales have warmer climates that can sustain heat pump hot water services.
  • Rebates. Like solar hot water systems, the Australian Government also offers rebates on heat pumps. Visit the Clean Energy Regulator Website to learn more about heat pump hot water rebates. 

How much does a heat pump hot water system cost?

The price of the heat pump hot water system largely depends on the capacity of the tank. Heat pumps with capacities from 250L up to 325L can cost you around $3,000 to $4,000. That is already inclusive of rebates and installation costs. 

Are you thinking of installing a heat pump hot water system?

Proper installation of heat pump hot water systems will ensure that your system optimises its energy efficiency. We need to look into the location, safety measures and state requirements to ensure your heat pump hot water system will be working properly for a long time, giving you the maximum return of your investments and offsetting your upfront costs. Consult with our heat pump hot water specialists in Hot Water 2Day to choose the best heat pump hot water heater for your home. Send us a quick chat or reach out to us via our hotline: 1300 513 630.