Heat Pumps
Australia's most complete hot water range. Backed like no other.
Solar, heat pump, gas — whatever your water heating needs, Envirosun has a system for it. Every product is Australian-designed for Australian conditions, backed by industry-leading 10-year transferable warranties* and engineered to ensure serious long-term savings. One range. One local team. No runaround.
Heat pumps
Air-source technology delivers hot water at up to 73% less running cost than standard electric. No gas connection required. R290 eco-friendly refrigerant. Works down to −7°C. Two models — next-gen M9 or proven Classic.
HP Plus M9 - 200L / 330L
Next-gen inverter · R290 · 42 dBA · Ground-mounted
Two years in development. Inverter technology with R290 eco-refrigerant delivers up to 73% energy savings vs standard electric. At 42 dBA — one of the quietest heat pumps in Australia. Available in 190L and 330L.
Key Features
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Inverter technology
Fast recovery, higher efficiency
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R290 eco-refrigerant
Low GWP, eco-friendly
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42 dBA quiet operation
One of the quietest in Australia
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Solar-ready
Store up to 21kWh with rooftop PV
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Triple anodes
Maximum corrosion protection
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3 modes
Eco · Mute · Fast recovery
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Frost-proof to -7°C
Reliable in all Australian climates
At-a-Glance
| ES200M9 / ES330M9 | |
|---|---|
| Capacity | 190L · 330L |
| Suits | 2–4 · 4–6 people |
| Noise | 42 dBA |
| Refrigerant | R290 |
| Operating range | -7°C to 45°C |
STC comparison — Zone 3
New M9 STC data in progress — placeholder until confirmed
HP Plus 250L
Established platform · R134a · 46 dBA · 246L
Manufactured by the world's largest appliance manufacturer, proven in European conditions for over a decade. In Australia's warmer climate, efficiency and recovery times are even better. Backed by 11 how-to videos for fast installer confidence.
Key Features
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Up to 71% energy savings
COP 3.41 at 15°C vs standard electric
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Solar-ready
Maximises daytime solar PV use
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Dual magnesium anodes
Double corrosion protection
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Legionella protection
Automatic periodic heat cycle
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11 how-to videos available
Full install & setup series, ready now
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Frost-proof to -7°C
Proven in colder European conditions
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Smart Vacation mode
Saves energy while property is empty
At-a-Glance
| 250ES1-15 | |
|---|---|
| Tank volume | 246L |
| Suits | 3–5 people |
| COP @ 15°C | 3.41 |
| Noise | 46 dBA |
| Refrigerant | R134a / 0.9kg |
STC comparison — Zone 3 energy savings
Data valid at time of publishing. Values reduce 10% each calendar year.
| Specification | ES200M9 | ES330M9 | 250ES1-15 |
|---|---|---|---|
| Total water capacity | 190L | 330L | 246L |
| Rated voltage / frequency | 220-240V/50Hz | 220-240V/50Hz | 220-240V/50Hz |
| Tank max pressure | 850kpa | 850kpa | 850kpa |
| Corrosion protection | Magnesium rod | Magnesium rod | Magnesium rod |
| Waterproof grade | IPX4 | IPX4 | IPX4 |
| Performance (20°C/15°C Ambient air temperature, 15°C–55°C water temperature) | |||
| Power input of electric element | 1500W | 1500W | 1500W |
| Rated power input of heat pump | 780W | 820W | 495W |
| Maximum power input of heat pump | 1500W | 1500W | 865W |
| Maximum power input | 1500W | 1500W | 1500W |
| Average heating capacity by heat pump | 3200W | 3300W | N/A |
| Default temperature setting | 60°C | 60°C | 55°C |
| Temperature setting range — with heater | 60°C – 75°C | 60°C – 75°C | 35°C – 75°C |
| Max working pressure of refrigerant | 1.0/3.3MPa | 1.0/3.3MPa | 0.8/2.8MPa |
| Refrigerant type / weight | R290/0.42kg | R290/0.47kg | R134a / 0.9kg |
| Sound pressure level @ 2m | 42dB(A) | 42dB(A) | 46dB(A) |
| Ambient temperature for heat pump and element | -7~45°C | -7~45°C | N/A |
| Ambient temperature of heat pump | -7~45°C | -7~45°C | -7–45°C |
| Water inlet and outlet connection | Rp ¾" | Rp ¾" | G3/4" F |
| TPR valve connection | Rp ¾" | Rp ¾" | G3/4" F |
| Drain & Water inlet connection | Rp ¾" | Rp ¾" | G3/4" F |
| Product dimensions | 580×620×1746mm | 710×740×1923mm | 600×629×1987mm |
| Packing dimension with pallet | 695×695×2060mm | 745×745×2263mm | 736×695×2250mm |
| Net / Gross weight | 93/119kg | 119/148kg | 102/115kg |
| Filled weight of the appliance | 282kg | 449kg | N/A |
Right here for Aussie plumbers.
Just good, local expertise on tap. No offshore call centres. No runaround.