Enviroflo S 5.0kW Split Electric Heat Pump
Enviroflo S 5.0kW Split Electric Heat Pump
Efficient Comfort, Engineered for Australian Homes
The Enviroflo S 5kW Split Electric Heat Pump is a reliable, energy-efficient hot water solution designed for Australian homes.
Combining a Japanese-made 5kW heat pump with durable Australian-made storage tanks, it offers long-lasting performance and is available in 250L and 315L capacities to suit a variety of household needs. The split system design separates the heat pump from the tank, providing flexible installation options and easier maintenance.
Engineered with R32 refrigerant for excellent efficiency and lower environmental impact, the Enviroflo S operates quietly, manages water pressures up to 1000kPa, and is built to withstand Australia’s tough conditions. Blending Japanese innovation with local manufacturing quality, it’s a smart, sustainable choice for dependable hot water.
Federal Government Grants (excl. ACT) plus State Government Grants for VIC/NSW available - more information can be found below.
Ideal for up to 6 people (depending on unit size)
Tanks are Australian designed and built
Large capacities at 250L and 315L
Environmentally friendly R32 refrigerant
Quiet operation down to 45dB(A)
Control via Rinnai Link mobile app
Federal Government Grants for all regions (excl. ACT) available
State Government Grants for VIC/NSW available
10 year cylinder warranty
Energy efficient
- Using up to 75% less energy to heat your water than a standard electric storage tank*
- R32 refrigerant**, known for its high energy efficiency and lower Global Warming Potential (GWP) than older refrigerants
Superior technology
- Available in 250L and 315L capacities to suit your hot water needs
- Operates quietly down to a low 45dB(A),*** quieter than the average noise level of a household dishwasher
- With its small footprint, our heat pump fits neatly into tight spaces, making it ideal for homes with limited installation areas without compromising on performance
- Standard and hard water anode water tank options available
- Inbuilt electric boost element to ensure you always have a reliable supply of hot water
- Multiple operating modes (Heat Pump/Economy/Hybrid/Element/Boost/Vacation)
- Operates in ambient air conditions ranging from -10°C to 45°C
- Built in anti-frost function to protect the evaporator in colder climates
- The built in Wi-Fi module allows for convenient control from anywhere with the Rinnai Link App (App available from the Apple Store or Google Play)
- Auto disinfection preventing the potential growth of legionella
- Auto restart function means in the event of a power outage it will automatically restart once the power is re-instated
Rinnai quality
- Enviroflo S tanks are designed and built in Australia, paired with a high-quality Japanese-made heat pump you can rely on for lasting performance
- 10 year cylinder warranty#
- 5 year compressor warranty#
- 1 year parts 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 from Jan 1st to Dec 31st 2025 | STC from Jan 1st to Dec 31st 2026 | |||||||||
Heat Pump | Litres | Zone 1 | Zone 2 | Zone 3 | Zone 4 | Zone 5 | Zone 1 | Zone 2 | Zone 3 | Zone 4 | Zone 5 |
KSHP250M24R50 / KSHP250M24R50H | 250L | 15 | 16 | 19 | 20 | 20 | 13 | 13 | 16 | 17 | 17 |
KSHP315M24R50 / KSHP315M24R50H | 315L | 15 | 16 | 19 | 20 | 20 | 13 | 13 | 16 | 17 | 17 |
STC - 10 Years Deeming | |||||||||||
Zone 1 | Zone 2 | Zone 3 | Zone 4 | Zone 5 | |||||||
KSHP250M24R50 / KSHP250M24R50H | 250L | 26 | 27 | 32 | 34 | 34 | |||||
KSHP315M24R50 / KSHP315M24R50H | 315L | 26 | 27 | 32 | 34 | 34 |
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) are offered for eligible installations on top of the Federal STC grants - making the conversion to a Rinnai Enviroflo S 5.0kW Split 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 S 5.0kW Split 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 25.06.2025.
* Energy saving based on a Rinnai Enviroflo S Split Electric Heat Pump (5.0kW) 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.
**R32 refrigerant: is a highly energy-efficient, low-GWP gas used in modern air conditioners. It offers better cooling performance while using less energy, making it ideal for eco-friendly air conditioning systems.
*** 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.
# For full warranty details download warranty booklet.
The product information on this website (comprising product brochures, warranty information, installation manuals, diagrams, specifications and representations) relates to current products. This information may be different for superseded products. For superseded products please contact Rinnai to confirm product information.
Rinnai – Enviroflo S 5.0kW Heat Pump | SHPR50 | ||
Dimensions | Height | mm | 675 |
Width | 755.5 | ||
Depth | 250 | ||
Weight | Empty | kg | 28 |
Filled | 34 | ||
Heating Capacity | kW | 5.0 | |
Back-Up Element | 2.4 | ||
Operating Ambient Range | °C | -10 to 45 | |
Refrigerant | R | 32 | |
Sound Level | dB(A) | 45 ~ 48 | |
Pressure and Temperature Relief (PTR) Valve Settings | kPa | 1000 | |
IP Rating | IPX5 | ||
Coefficient Of Performance (COP)* | 5.5 |
* 32°C Ambient 18°C Cold Water Inlet
Rinnai – Enviroflo Tanks | Unit | HPTS250VM24 / HPTS250VM24H | HPTS315VM24 / HPTS315VM24H | ||
People | No | Up to 5 | Up to 6 | ||
Volume | L | 250 | 315 | ||
Dimensions | Unit Size | Height | mm | 1477 | 1770 |
Width | 605 | 605 | |||
Weight | Package | kg | 70 | 82 | |
Element | kW | 2.4 | |||
Pressure and Temperature Relief (PTR) Valve Settings | kPa | 1000 | |||
Expansion Control Valve (ECV) | 850 | ||||
Maximum Inlet Pressure with ECV | 680 | ||||
Pressure Limiting Valve (PLV) with ECV | 500 | ||||
Maximum Inlet Pressure without ECV | 800 | ||||
Pressure Limiting Valve (PLV) without ECV | 500 | ||||
IP Rating | IPX4 | ||||
Water Connection | Rp | 3/4 (20mm) | |||
Tank Colour | Dune |
Warranty
Type of Use | Cylinder | Compressor | Parts | |
Domestic Use | Parts | 10 years | 5 years | 1 year |
Labour | 5 years | |||
Commercial Use | Parts | 1 year | 1 year | |
Labour |
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