
The Rinnai EnviroFlow GR Series 300L EHPG300VM10 is designed for larger Australian households needing efficient, reliable hot water. It uses R290 refrigerant, a 15A plug connection, smart operating modes and solar PV compatible performance.
The EnviroFlow GR 300L captures heat from ambient air and transfers it into water, helping reduce electricity use compared with traditional electric hot water systems.
With 300L storage, 46dB(A) operation and a wide operating range, it is suitable for homes with higher daily hot water demand.

Low-GWP refrigerant for modern efficient hot water heating.
Heat pump technology helps lower hot water energy usage.
Designed to work alongside rooftop solar PV systems.
Listed sound level of 46dB(A).
| Specification | Details |
|---|---|
| Brand | Rinnai |
| Series | EnviroFlow GR Series |
| Model | EHPG300VM10 |
| Tank Volume | 300L |
| Suitable For | Up to 6 people / 2 bathrooms / 4 bedrooms |
| Diameter | 640mm |
| Height | 2055mm |
| Hot Outlet Height | 1322mm |
| Cold Inlet Height | 112mm |
| Net / Filled Weight | 124kg / 424kg |
| Sound Level | 46dB(A) |
| Ambient Operating Range | -7°C to +45°C |
| Ingress Protection | IP24 |
| Water Connections | ISO 7.1 ¾” RP |
| PTR Valve Connection | ISO 7.1 ½” RP |
| PTR Valve Rating | 1000kPa / 10kW |
| Refrigerant | R290 / 395g |
| Electric Element Input | 2.4kW |
| Refrigeration Module Input | 1.1kW |
| Total Rated Input | 3.3kW |
| Maximum Energy Output | 7.0kW |
| Power Supply | 220–240V AC / 50Hz |
| Rated Current | 13.5A |
| Power Connection | 15A plug fitted or hardwired |
| Refrigerant Circuit Max Pressure | 3091kPa |
| Heat Output | 4.0kW |
| Package Size | 725 × 725 × 2100mm |
| Warranty |
Domestic Use Cylinder Refrigeration Components |

Prioritises efficient heat pump operation.
Uses heat pump with electric element support when needed.
Provides extra heating support for high demand.
Can be used with rooftop solar PV generation.
The system captures heat from ambient air.
R290 refrigerant absorbs available heat energy.
The compressor increases refrigerant temperature.
Heat transfers into the 300L storage cylinder.
Hot water is ready for your household.
Yes. It is suitable for larger households of up to 6 people.
The model number is EHPG300VM10.
It uses R290 refrigerant with a 395g charge.
The system is supplied with a 15A plug, or it can be hardwired.
The listed sound level is 46dB(A).
Yes, it is suitable for use with solar PV energy strategies.
Get high-capacity, efficient and solar-friendly hot water for your home.