
How Do Heat Pumps Work
Hot water heat pumps operate by extracting heat from the air and transferring it to the water in the tank. This process is similar to how a refrigerator works but in reverse. The heat pump contains a refrigerant that evaporates at low temperatures, absorbing heat from the air. This vapor is then compressed, raising its temperature, and the heat is transferred to the water.
A size to suit every household
We offer two heat pump models, the 220L and 270L, both feature an optional built-in electric heater. This feature serves as a backup for faster heating, guaranteeing a continuous supply of hot water even in cold weather conditions!
For households of up to four people, we recommend the Emerald 220L Heat Pump. Larger households with four or more people would benefit from the Emerald 270L Heat Pump.

Our Product




Sorted by latest reviews
I’m so glad we did this
by Sandor
Sales people fantastic. Claiming rebates was an easy process. Installation went without issue. Hot water has never been better. Glad we’ve got one mo read more
Nice looking unit with good performance
by Serge S.
So far extremely happy with the unit. Installed about 4 month ago. For 3 people family I am heating water between 11am and 2pm. Using about 1.5kw of pow read more
Love my Emerald Hot Water Heat Pump
by Jules
I upgraded from an older gas hot water system in where I live in Melbourne, did my research & found that the Emerald Electric Hot Water Heat Pump was read more
Emerald helping save the planet for our children
by Marcel
I am so far absolutely happy with the system and glower the company that installed it. I am now recommending this system to all my family and friends read more
FAQs
A hot water heat pump, or a heat pump water heater, is a specialized appliance designed to provide hot water for residential or commercial use through an energy-efficient process. It transfers heat from one location to another rather than generating heat directly.
Heat-pumps have an Energy saving of 74-78% compared to standard electric hot water.
A heat-pump hot water system uses much less electricity than an electric storage hot water system. This is because it only uses electricity to drive the compressor and the fan, instead of using electricity to heat the water directly with an electric element.
Made from premium components for optimum performance and reliability.
1. Manufactured using quality products such as Grundfos; the number one water pump brand, and Toshiba JV compressors with a larger 3.6kw heating capacity for higher efficiency.
2. Back-up element as standard
3. It is fitted with an E-heater for quicker hot water in winter – unlike some other heat pumps on the market.
4. Durable 2.5mm thick enamel water tank
The Emerald Home App allows you to manage your Emerald Heat pump remotely. A part of this remote control is the ability to set Smart Actions.
Here is an example of setting up a Schedule Smart Action.
1. In the Emerald app, click Smart Actions
2. Create and name your new Smart Action. Select ‘Trigger‘ and add a ‘Schedule‘.
3. Set your desired ‘Start Time’, and select the days you would like the trigger to be activated.
4. Set the ‘Action’ as your Heat Pump device and set it to turn ON.
5. Repeat these first four steps again, but set your ‘Trigger’ for the desired end time, and your ‘Action’ for the Heat Pump to turn OFF rather than on.
Emerald heat pumps can operate in ambient temperatures of -7°C to +40°C.
Heat pumps are more energy efficient than standard electric resistance hot water systems; as they use air source heating to heat and cool refrigerant which is cycled through the system and heats the water using a heat exchange system.
Because of this; electricity consumption is very low as it is only used to power the fan and internal electronics and has a low draw on the electrical grid.
The average kWh usage of an Emerald Heat Pump is 3-4 kWh per day (0.85 kW) compared to the kWh usage of a standard electric standard hot water system, which is 14-18 kWh per day(3.6 kW).
Please note; that these figures are based on average usage and will vary depending on how often the system needs to heat large amounts of water in the tank.