Heat Pump Hot Water Systems in Australia

Last updated on March 28, 2025

What is a heat pump hot water system?

A heat pump hot water system is an energy-efficient way to heat water for domestic use. It works by extracting heat from the surrounding air and transferring it to the water stored in the tank.

A heat pump system’s key components are an outdoor unit containing the compressor, evaporator, and condenser coils and an insulated storage tank holding the heated water.

Unlike traditional electric or gas hot water systems that generate heat by burning fossil fuels, heat pumps use electricity to power a refrigeration system that absorbs ambient heat.

Also read: Finding the best size hot water system

This makes them much more energy efficient, with some units having over 300% efficiency.

Review of the five best heat pump hot water systems

Now that we’ve looked at what to consider when buying a heat pump hot water system let’s review some of the best units available in Australia:

1. Ecogenica Heat Pump

The Ecogenica 245L heat pump water heater offers high efficiency and quality construction at an affordable price point. This unit has an appealing modern design and includes a useful digital display and programmable timer functions.

Pros

Energy rating of 4 stars
Large 245L storage capacity
Quality weather-resistant casing
User-friendly digital controls
Quiet operation

Cons

Only one year warranty on some components
Low ambient compressor performance could be better

Who is this product right for?

The Ecogenica 245L is ideal for households with 3-5 people looking for an attractive and well-performing heat pump water heater. Thanks to its upgraded compressor and fan, it works well even in cool climates.

2. Emerald All-in-One Heat Pump

This integrated unit from Emerald combines a 300L vitreous enamel tank with an efficient heat pump in one seamless cabinet. The neat, all-in-one configuration allows for simple installation.

Pros

High energy efficiency with a 4.7-star rating
Large 300L storage capacity
Integrated modern design
Quiet operation
10-year warranty on all parts

Cons

Higher upfront cost
Unit height is not suitable for some spaces

Who is this product right for?

The Emerald All-in-One is ideal for a family of 4-6 people that wants a single integrated heat pump water heating solution. It’s great for a new installation where height is not an issue.

3. Emerald 270L Split Heat Pump

The Emerald 270L split system couples an efficient outdoor heat pump unit with a 270-litre indoor storage tank. This allows flexible installation with the option to have the tank either floor or wall-mounted.

Pros

High 4.7 star energy rating
Large 270L tank capacity
Flexible installation options
Operates in ambient temperatures as low as -15°C
10-year comprehensive warranty

Cons

Installation requires connecting refrigerant lines
Higher initial cost

Who is this product right for?

The Emerald 270L Split is great for households with 2-4 people who need a very energy-efficient heat pump with superior cold climate performance. The split tank configuration allows installation flexibility.

4. iStore Heat Pump

The iStore 270L heat pump water heater delivers excellent energy efficiency along with useful smart features. It can integrate with home automation systems for remote monitoring and control.

Pros

High 4.5 energy star rating
Large 270-litre tank
Built-in WiFi for app control
Scheduled operation
Quiet fan operation

Cons

Only 5 years tank warranty
Installation of optional accessories is complex

Who is this product right for?

With its smart connectivity options, the iStore 270L suits tech-savvy households who want to integrate their water heater with home automation systems. Convenience features make hot water management easier.

5. Reclaim Energy Heat Pump

This locally-made system from Reclaim Energy offers a large 315L tank coupled with an efficient heat pump capable of operating in freezing conditions. A 10-year warranty across all components backs it.

Pros

High energy efficiency with a 4-star rating
Large 315L tank capacity
Advanced frost-resistant technology
Durable and corrosion resistant stainless-steel tank
10-year comprehensive warranty

Cons

Higher purchase price
External ball valve can leak over time

Who is this product right for?

The Reclaim Energy 315L is ideal for a family of 4-6 that needs a high-capacity heat pump water heater that can cope with cold climates. It’s a good long-term investment backed by strong warranty terms.

Conclusion- heat pump hot water systems in Australia

Heat pump hot water systems provide an energy-efficient and environmentally friendly solution for domestic hot water heating needs. When choosing a system, key factors to consider are capacity, energy rating, performance in colder conditions, tank type, and warranty terms.

The Ecogenica 245L provides an attractively priced option with generous tank capacity. For larger families, the Emerald All-In-One 300L is a seamlessly integrated solution. The Emerald 270L Split offers maximum installation flexibility.

Those who want smart features should look at the iStore 270L. For cold climates, the Reclaim Energy 315L utilizes advanced frost protection.

Consider your hot water requirements, climate, and budget when selecting the heat pump water heater that can best meet your needs. With their exceptional efficiency and green credentials, heat pumps are a smart investment that pays back through energy savings over time.