A Rheem heat pump is a smart solution for energy-efficient hot water.
We are licensed and qualified to install, replace and repair all Rheem heat pump hot water heaters. Call or SMS us for fast, same day service on 0410 693 532.
We recently replaced one of our Hornsby customer’s old solar hot water system with a brand-new Rheem Solar Heat Pump, installed in the exact same position for a smooth, hassle-free upgrade.
This solution combines advanced heat pump efficiency with the reliability of modern solar technology, helping households reduce their energy bills while enjoying a consistent supply of hot water year-round.
How do heat pumps work?
A heat pump works a little like a reverse refrigerator. Instead of creating heat directly (like a traditional electric or gas system), it absorbs heat from the surrounding air and transfers it into the water tank. Because heat pumps use renewable heat from the air, they consume far less electricity than conventional water heaters, making them one of the most energy-efficient ways to heat water.
The benefits of heat pump hot water:
- Works day and night, rain or shine.
- Uses ambient air temperature, not direct sunlight.
- Reliable performance in a wide range of climates.
Further reading: How heat pumps work »

Solar hot water versus heat pump hot water
Both solar and heat pump systems offer enormous benefits for households, delivering reliable hot water while helping to reduce energy bills and environmental impact. As hot water specialists, we supply and install both technologies, and the best choice for your home often comes down to practical factors such as budget, roof aspect, shading, household size, hot water usage patterns, climate, and available space.
Our role is to guide you through these considerations and recommend the solution that provides the best performance and long-term value for your needs — not to promote one system over the other.

Solar Hot Water Systems
Pros
- Harnesses free energy from the sun.
- Delivers excellent long-term savings with very low running costs.
- Eligible for Government rebates and incentives.
Cons
- Dependent on direct sunlight, often requires a booster in cloudy or rainy weather.
- Higher upfront installation costs, especially if roof panels and storage tank both need replacing.

Heat Pump Hot Water Systems
Pros
- Highly energy efficient — can cut electricity use by up to 65%.
- Reliable hot water supply in all weather conditions.
- Straightforward installation with no need for rooftop collectors.
- Eligible for Government rebates and incentives.
Cons
- Performs best in well-ventilated outdoor areas.
- Can produce some operational noise, similar to an air conditioner.

The process of switching from solar hot water to a heat pump
If you currently have a solar hot water system with rooftop collectors and a ground storage tank, switching to a heat pump is straightforward:
- Assessment – We will inspect your existing solar tank, roof collectors, and piping to determine what can be retained in the new installation.
- Removal – Drain, disconnect and remove your old ground tank. If not working or beyond economical repair, remove your original rooftop solar panels. Take away for recycling.
- Installation – Install a new solar heat pump. If possible, do this in the same position to ensure there are minimal changes required to existing plumbing (also saving you money).
- Setup & Testing – Safely and efficiently connect your new heat pump. Test to ensure everything is working correctly.
Typically, installing a new heat pump takes less time that installing a new solar hot water system.
Features of Rheem heat pump hot water systems
When it comes to choosing a hot water solution that’s both efficient and reliable, Rheem heat pumps stand out as one of the smartest options for Australian households. Designed to harness renewable heat from the air, they deliver the comfort of a steady hot water supply while keeping energy use and running costs low. With advanced features, strong environmental credentials, and generous warranty support, Rheem heat pumps are a long-term investment in comfort, savings, and sustainability.
Exceptional Energy Efficiency
Rheem’s MPi Series II heat pumps use only about one-third of the electricity required by a conventional electric water heater. Their high Coefficient of Performance (COP) means they can deliver 4–5 times more heat energy than the electrical energy consumed. This translates into significant long-term savings on household energy bills.
Reliable Hot Water in All Conditions
Unlike solar systems that rely on direct sunlight, Rheem heat pumps work day and night, rain or shine, as long as there’s ambient air available. Many models are fitted with backup electric elements and active de-icing technology, ensuring dependable hot water delivery even in cold or frosty weather.
Simple, Space-Saving Installation
Rheem heat pumps are designed for outdoor installation and don’t require rooftop collectors. This makes them ideal for homes with limited roof space, shaded properties, or those wanting a more straightforward upgrade from an older system.
Environmentally Friendly Performance
By drawing heat from the surrounding air, Rheem heat pumps significantly reduce carbon emissions compared to traditional water heating systems. Models such as the Rheem AmbiPower 280e use refrigerants with ultra-low Global Warming Potential (GWP), further supporting environmentally sustainable living.
Built to Last with Strong Warranty Support
Rheem backs its heat pumps with robust warranty options, offering peace of mind for years to come:
- 7 years (parts only) on the tank
- 3 years (parts & labour) on the compressor
- 1 year (parts & labour) on all other components
This durability, combined with comprehensive support, makes Rheem heat pumps a trusted choice for Australian households.
Government rebates. Making the switch more affordable.
Both solar hot water systems and heat pumps qualify for Government rebates and incentives, which are designed to encourage Australian households to move towards more energy-efficient solutions. Depending on your eligibility, these rebates can cover a significant portion of the upfront installation cost, making the upgrade far more affordable than many people expect.
How we can assist with Government rebates:
- Check your eligibility.
- Debit your rebate amount for the purchase price of your new water heater.
- Maximise your savings when upgrading.
Heat pump installation advice and service
If your solar tank is showing its age, switching to a Rheem Solar Heat Pump could be the perfect upgrade to boost performance and savings without major changes to your existing setup. Contact us today to learn more about this efficient solar hot water solution that suits your needs and budget and the Government rebates that may be available to you.

