
TL;DR: With rising electricity prices and generous government incentives, there has never been a better time to upgrade your home's hot water system. Heat pumps — particularly trusted brands like Rheem — can cut your water heating costs by up to 70%. Queensland homeowners can access significant upfront discounts through the federal Small-scale Renewable Energy Scheme (STCs). As local hot water experts, Scarborough Plumbing installs, services, and repairs all types of hot water systems across the Redcliffe Peninsula.
The True Cost of Heating Water in Queensland
Heating water is typically the single largest source of greenhouse gas emissions in an Australian home, accounting for around 21% of the average household's energy use. For decades, most homes on the Redcliffe Peninsula relied on standard electric storage hot water systems. While reliable, these older systems are notoriously power-hungry. As energy costs continue to climb, homeowners in Scarborough, Redcliffe, Margate, and surrounding suburbs are looking for smarter, more efficient ways to keep the hot water flowing.

How Do Heat Pump Hot Water Systems Work?
If a traditional electric hot water system is like a giant kettle, a heat pump is more like a refrigerator working in reverse. Instead of using electricity to generate heat directly, a heat pump uses a small amount of electricity to extract ambient heat from the outside air and transfer it into the water stored in the tank. Because it is moving heat rather than creating it from scratch, a heat pump is incredibly efficient — using up to 70% less electricity than a conventional electric water heater.
With Queensland's warm and humid climate, heat pumps perform exceptionally well year-round. If you also have rooftop solar panels, you can set your heat pump to run during the middle of the day, effectively heating your water for free using the sun's energy.

Rheem AMBIHEAT: The System We Recommend
At Scarborough Plumbing, we install and service all major hot water brands, but we frequently recommend the Rheem AMBIHEAT heat pump to our local customers. Rheem has been manufacturing hot water systems for Australian conditions for decades, and the AMBIHEAT is their flagship heat pump — built tough to withstand the coastal salt air of the Redcliffe Peninsula.


The model we installed in the photos above is the Rheem AMBIHEAT 270L (Model 551E280RS) — a 270-litre air-sourced heat pump with a rated heat pump input of just 690W, compared to 2,400W for a conventional electric element. That is a massive difference in running costs for a family home.
Understanding the Government Rebates (STCs)
The biggest barrier to upgrading to a heat pump has traditionally been the upfront cost. However, the Australian Government's Small-scale Renewable Energy Scheme (SRES) has changed the equation completely. Installing an eligible, highly efficient heat pump generates Small-scale Technology Certificates (STCs), and the value of these certificates is applied as an upfront discount on your installation quote — meaning you never have to wait for a government cheque. Depending on the system you choose, this STC discount can reduce the purchase and installation cost by hundreds, sometimes over a thousand dollars.


We Install and Repair All Hot Water Systems
While heat pumps are currently the most popular upgrade, they are not the only option. Scarborough Plumbing is fully licensed and experienced in installing, repairing, and servicing all types of hot water systems — electric storage, gas continuous flow, solar hot water, and heat pump. We can assess your household's water usage, explain the STC rebates available for your specific address, and recommend the perfect system for your needs and budget.


Frequently Asked Questions
How much can I save with a heat pump?
A quality heat pump uses up to 70% less electricity than a conventional electric water heater. For an average Queensland family, this can translate to savings of $500 to $1,000 per year on energy bills, depending on your current system and usage.
Is my home suitable for a heat pump?
Most Queensland homes are ideal for heat pumps due to our warm climate. The Rheem AMBIHEAT is approved for outdoor installation and performs well even on cooler winter nights. The main requirement is adequate space around the unit for air circulation.
How long does installation take?
A standard heat pump installation by Scarborough Plumbing typically takes half a day. We handle all the plumbing connections, electrical connections (in coordination with a licensed electrician if required), and the STC rebate paperwork.
Does the STC rebate apply in Queensland?
Yes. The federal Small-scale Renewable Energy Scheme applies across all of Australia, including Queensland. The rebate is applied as an upfront discount by your installer — you do not need to apply for it separately.
Ready to Upgrade Your Hot Water?
Contact Scarborough Plumbing today on 0400 322 335 or get in touch online to arrange a no-obligation quote for a Rheem heat pump or hot water system installation.
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