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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.

WiFi logoCombining 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.

Rinnai - Australian MadeEngineered 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

Download Rinnai Link App

Download from Apple Store

 

Download from Google Play

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#

Rinnai - STC map for Federal Government Grants

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
- Consumer Consumer
  • Enviroflo S 5.0kW Split Electric Heat Pump Brochure
  • Enviroflo S 5.0kW Split Electric Heat Pump Operation and Installation Manual
  • Enviroflo S 5.0kW Split Electric Heat Pump Error Codes
  • Enviroflo S 5.0kW Split Electric Heat Pump Warranty Booklet
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