The Envirosun® HP Plus is a cutting-edge air source heat pump that combines efficiency, innovation, and sustainability like never before. Designed with Australian families in mind, Envirosun® HP Plus delivers performance and reliability, setting a new standard in efficiency.

Australian plumbers trust Envirosun® for industry-leading innovation and quality manufacture. With Envirosun® HP Plus, you can enjoy a hot water solution that exceeds expectations, backed by reliability and performance.
Key features
Environmentally friendly: Say goodbye to harmful refrigerants! Envirosun® HP Plus utilises natural R290 refrigerant, making it a responsible choice for the planet, a choice more customers are demanding.
Efficiency redefined: Powered by inverter technology, the Envirosun® HP Plus ensures faster recovery times and higher efficiency, so you can enjoy hot water whenever you need it.
Whisper-quiet operation: Experience peace and tranquillity with Envirosun® HP Plus's super-quiet operation. Emitting just 42dBA during operation, guarantees your customer peace and neighbourly harmony.
Innovative design: Two years in development and decades of experience makes HP Plus the clear choice for Australian homes.
Versatile capacity: Available in 200L and 330L models, Envirosun® HP Plus offers the largest capacity range on the market, catering to families of all sizes with ease.
User-friendly interface: Intuitive TFT LCD control screen makes customising the operation of the Envirosun® HP Plus unit a breeze.
Extended lifespan: With triple full-length anodes, Envirosun® HP Plus ensures maximum durability and longevity, giving you peace of mind for years to come.
Customisable modes: Choose from four operating modes to suit your preferences and lifestyle; All Electric, Fast Recovery, Eco, and Mute mode for silent overnight heating — wake up to a hot shower every morning!
Specifications:
| Heat Pump Model |
330l (ES330M9) |
| Total water capacity |
330L |
| Rated voltage / frequency |
220-240V/50Hz |
| Tank max pressure |
700kPa |
| Corrosion protection |
Magnesium rod |
| Waterproof grade |
IPX4 |
| Performance (20°C/15°C Ambient air temperature, 15°C -55°C water temperature) |
| Power input of electric element |
1500W |
| Rated power input of heat pump |
820W |
| Maximum power input of heat pump |
1500W |
| Maximum power input |
1500W |
| Average heating capacity by heat pump |
3300W |
| Default temperature setting |
60°C |
| Temperature setting range- with heater |
35°C – 75°C |
| Max temperature of the heat pump only |
65°C |
| Max working pressure of refrigerant |
1.0/3.3MPa |
| Refrigerant type / weight |
R290/0.47kg |
| Sound pressure level*² @ 2m |
42dB(A) |
| Ambient temperature for heat pump and element |
-7~45°C |
| Ambient temperature of heat pump |
-7~45°C |
| Water inlet and outlet connection |
Rp ¾” |
| TPR valve connection |
Rp ¾” |
| Drain & Water inlet connection |
Rp ¾” |
| Product Dimensions |
710 x 740 x 1923mm |
| Packing dimension with pallet |
745 x 745 x 2263mm |
| Net/Gross weight |
119/148kg |
| Filled weight of the appliance |
449kg |