Enviroflo AR Series Heat Pump
Enviroflo AR Series Heat Pump
Proudly designed and built in Australia
The Enviroflo AR Series electric integrated heat pump hot water system is your go-to solution for dependable and efficient hot water.
Offered in two large capacities, 300L and 340L (the largest capacity for an integrated residential heat pump in Australia), and available with standard or hard water anodes, these systems will meet any site requirements.
Enjoy the benefits of the single element boost feature, guaranteeing hot water availability even during peak usage or cold weather.
The Enviroflo AR Series is an environmentally stable choice, utilising R290, a sustainable refrigerant, and featuring Solar PV Panel compatibility that allows you to harness solar energy for enhanced efficiency and savings. Built to endure Australia’s tough climate, these systems can handle water pressures up to 1000kPa, ensuring long-lasting performance.
Their lightweight design also facilitates quick and safe installation, providing you with hot water with minimal hassle and environmental impact.
Federal Government Grants (excl. ACT) plus State Government Grants for VIC/NSW available - more information can be found below.
Ideal for up to 7 people (depending on unit size)
Australian designed and built
As seen on Love it or List it (2025) TV show
Large capacities at 300L and 340L
Largest integrated residential heat pump in Australia
Quiet operation at a low 45dB(A)
Built in Wi-Fi for control via SmartLife App+
Federal Government Grants for all regions (excl. ACT) available
State Government Grants for VIC/NSW available
7 year cylinder warranty*
Energy efficient
- Innovative controller to maximise hot water availability while using more than 70% less energy**
- High efficiency R290*** refrigerant with a low Global Warming Potential (GWP) of just 0.02
- Can be networked with Solar PV Panels for enhanced efficiency and savings
- Option to run only at off-peak times, when the electricity cost is lower
Superior technology
- Multiple operating modes - Standard | ECO | Hybrid | Electric | Vacation
- Standard and hard water anode options available
- Quiet operation levels at 45dB(A)#
- Operates in ambient air conditions ranging from -7°C to 45°C
- Built in anti-frost function to protect the evaporator in colder climates
- Inbuilt electric element to ensure you always have a reliable supply of hot water
- Auto disinfection preventing the potential growth of legionella
- Higher compressor performance improves water heat up time
- Auto restart function - in the event of a power outage it will automatically restart once the power is re-instated
- The built in Wi-Fi module via the SmartLife App+ allows for convenient control from anywhere (App available from the Apple Store or Google Play)
Rinnai quality
- 7 year cylinder warranty*

Federal Government Grants - Small-Scale Technology Certificate (STC’s)
- Enviroflo’s innovative design allows it to be eligible for Grants through the Federal Government’s Small-Scale Renewable Energy Scheme, generously covering a proportion of the up-front costs of purchasing and installing the system.
- These grants are called Small-Scale Technology Certificates (STCs) and are offered based on how sustainable a hot water system is.
- Your STC rebate value will depend on your installation location, see the map above for your geographic zone locations.
| Certified System Code | STC 2026 | STC 2027 | ||||||||
| Heat Pump Model | Zone 1 | Zone 2 | Zone 3 | Zone 4 | Zone 5 | Zone 1 | Zone 2 | Zone 3 | Zone 4 | Zone 5 |
| EHPA300VM / EHPA300VMH | 13 | 12 | 15 | 16 | 16 | 10 | 10 | 12 | 13 | 13 |
| EHPA340VM / EHPA340VMH | 13 | 12 | 15 | 16 | 16 | 10 | 9 | 12 | 13 | 12 |
| STC - 10 Years Deeming (2021 registered) | ||||||||||
| Zone 1 | Zone 2 | Zone 3 | Zone 4 | Zone 5 | ||||||
| EHPA300VM | 26 | 25 | 31 | 33 | 33 | |||||
| EHPA340VM | 26 | 24 | 30 | 33 | 32 | |||||
State Government Grants
Victoria
- For Victorian consumers there are additional rebates available for replacing inefficient hot water systems with Heat Pumps.
- Victorian Energy Efficiency Certificates (VEECs) plus a Solar Victoria rebate are offered for eligible installations on top of the Federal STC grants - making the conversion to a Rinnai Enviroflo Heat Pump the obvious low-cost choice.
New South Wales
- For New South Wales consumers there are additional rebates available for replacing inefficient hot water systems with Heat Pumps.
- Energy Savings Certificates (ESCs) are offered for eligible installations on top of the Federal STC grants - making the conversion to a Rinnai Enviroflo Heat Pump the obvious low-cost choice.
The value of STCs and State Grants are a tradable, market driven commodity. Values are subject to daily variation and are valid as of 12.12.2025.
*7 year extended Inner Storage Cylinder warranty available subject to participating in the Rinnai scheduled service program. For full terms and conditions please refer to the related warranty booklet.
**Energy saving based on a Rinnai Enviroflo AR Series Heat Pump when compared to a standard electric water heater of the same capacity during peak winter load in Zone 3 and 4 based on AS/NZS4234. Savings will vary depending on location (Zone 1-5), type of water heater being replaced, hot water consumption and associated fuel tariffs.
***R290: is a refrigerant used in air conditioning units that delivers high energy efficiency while reducing environmental impact. Its superior performance makes it a cost-effective alternative to traditional refrigerants.
#A noise level of 45 dB(A) is considered very quiet - comparable to the sound of a modern dishwasher or air conditioner, and noticeably quieter than a normal conversation.
+Rinnai uses a third-party application (App) to enhance your experience of the Rinnai product. You may use the App at your sole discretion. Please note that when you download and use the App and its services, the third-party’s privacy policy and terms and conditions of service will apply. By using the Rinnai product through this App, you acknowledge and agree that: The third-party App may collect, store, and process your personal information according to its own privacy policy and App terms and conditions. Rinnai does not control and are not responsible for the content, policies, or practices of the third-party App and its services. Rinnai strongly recommends that you review the App privacy policy before using its features. The use of the third-party App is optional. For further information or clarification, please contact us at 1300 555 545 and [email protected]
Product codes: 300 - EHPA300VM / EHPA300VMH | 340 - EHPA340VM / EHPA340VMH
H = Hardwater Anode
| Rinnai – Enviroflo AR Series Heat Pump Models | Unit | EHPA300VM / EHPA300VMH | EHPA340VM / EHPA340VMH | ||
| Tank Volume | L | 300 | 340 | ||
| Number of People | up to 6 | up to 7 | |||
| Dimensions | Unit | Height | mm | 1925 | 2095 |
| Diameter | 652 | 652 | |||
| Package Size | Height / Width / Depth | 2136 x 713 x 713 | 2306 x 713 x 713 | ||
| Hot Outlet | 1259 | 1429 | |||
| Cold Inlet | 116 | 116 | |||
| Weight | Empty / Filled | kg | 128 / 428 | 138 / 478 | |
| Sound Pressure Level# | dB(A) | 45 | |||
| Ambient Temperature Limits (for heat pump operation – element will operate beyond these limits) |
°C | -7 to 45 | |||
| Ingress Protection | IP24 | ||||
| Storage Cylinder Connections | Hot Outlet / Cold Inlet | RP | ISO 7.1 ¾” | ||
| Pressure and Temperature Relief (PTR) Valve | ISO 7.1 ½” | ||||
| PTR Supplied Valve Settings / Ratings | kPa / kW | 1000 / 10 | |||
| Expansion Control Valve (ECV) Fitted | Fit Pressure Limiting Valve (PLV) if mains pressure exceeds | kPa | 680 | ||
| Recommended PLV pressure rating | 500 | ||||
| ECV Not Fitted | Fit PLV if mains pressure exceeds | 800 | |||
| Recommended PLV pressure rating | 500 | ||||
| Refrigerant Type / Mass | R / g | 290 / 380 | |||
| Rated Input | Factory Wired | Electric Element | kW | 2.4 | |
| Refrigeration Module | 1.2 | ||||
| Wired by Installer | Total | 3.4 | |||
| Energy Output | Use to size PTR | Maximum | kW | 7.5 | |
| Power Supply | V AC / Hz | 220-240 / 50 | |||
| Rated Current | Maximum | Amps | 15 | ||
| Refrigerant Circuit Pressure | kPa | 3000 | |||
| Coefficient Of Performance (COP)## | kW | 8.4 | |||
| Heat Output | 4.4 | ||||
Warranty*
| Type of Use | Cylinder** | Refrigeration Components 1 | Other Components 2 | |
| Domestic Use | Parts | 7 years | 5 years | 1 year |
| Labour | 5 years | 5 years | 1 year | |
| Commercial Use | Parts | 1 year | 1 year | 1 year |
| Labour | 1 year | 1 year | 1 year | |
#Sound Pressure Level tested @1.5m. Sound Levels on installations can be higher due to noise reflections from nearby surfaces and structures.
##32.6°C ambient 21.1°C cold water inlet
*Please refer to the Warranty Booklet for more information.
**Inner Storage Cylinder
1. Refrigeration Components include but are not limited to: compressor, condenser, expansion valve, heat exchanger, evaporator and associated pipe work.
2. Other Components include but are not limited to: sensors, thermostats, valves, electric heating elements, anodes.
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