Heating water is one of the largest contributors to household energy costs. In many homes, it accounts for up to 30% of total electricity use.
Heat pump hot water systems dramatically reduce this cost by using renewable heat energy from the air instead of generating heat directly. This makes them one of the most efficient ways to produce hot water in Australian homes.
With federal incentives and South Australian REPS rebates currently available, eligible households can significantly reduce the upfront cost of upgrading.
This process uses far less electricity than conventional systems and can deliver up to four units of heat for every unit of electricity consumed, depending on conditions and usage.
The combination of STCs + REPS can significantly lower the cost of switching from electric or gas hot water.
Our team will confirm eligibility and apply all available incentives as part of the installation process.
Feature | Viva (Best Value) | Midea (Most Popular) | Hisense (Premium) |
Positioning | Cost-effective efficiency | Balanced performance & scale | Advanced features & control |
Typical Household | Small–medium homes | Medium–large families | Tech-focused homes |
Energy Savings | Up to ~77% | Up to ~77% | Up to ~77% |
Noise Level | ~43 dB (very quiet) | ~45–48 dB | Low noise operation |
Refrigerant | R290 (low GWP) | R290 (low GWP) | R290 (low GWP) |
Solar Compatible | Yes | Yes | Yes |
Smart Controls | Wi-Fi enabled | Wi-Fi enabled (model dependent) | ConnectLife app |
Hygiene / Sterilisation | Standard protection | Auto disinfection | Smart sterilisation + anti-legionella |
Durability Focus | Proven reliability | Large-scale global manufacturing | Dual corrosion protection |
Government Incentives | STCs + SA REPS | STCs + SA REPS | STCs + SA REPS |
Best Suited For | Value-focused upgrades | Most households | Premium performance |
Use renewable heat from the air to heat water efficiently, reducing electricity use and ongoing hot water costs compared to traditional electric systems.
Heat pump systems transfer heat rather than generate it directly, delivering high efficiency with significantly less energy input.
Designed to provide consistent hot water for everyday household use, even during colder conditions when properly sized and installed.
No gas combustion, no flue, and no open flame, making heat pump hot water a safer alternative to gas systems for modern homes.
Supports home electrification goals and works well with rooftop solar, helping households reduce reliance on fossil fuels over time
No. Modern systems are designed for residential use and operate quietly.
Most models produce around 43-48 decibels, which is comparable to a fridge or light rainfall.
With proper installation and normal household use, most systems are designed to last 10-15 years or more.
Advanced corrosion protection and smart monitoring help extend system lifespan.
PAYS allows eligible homeowners to install an energy-efficient system with no upfront cost, spreading repayments over time.
The goal is to offset repayments with reduced energy bills.
Eligibility is assessed during your hot water assessment.
Eligible systems qualify for:
SunEnergy manages the rebate process as part of installation.
Yes. Heat pump hot water systems are solar compatible and pair extremely well with rooftop solar.
Many households choose to heat water during the day using solar-generated electricity, further reducing costs.
Most South Australian homes are suitable, including replacements for:
Our team will assess household size, usage patterns and installation location to recommend the correct system.
