Rinnai Enviroflo 315L Heat Pump Hot Water System

by Rinnai
Highly efficient, up to $1000 STC rebates available*
Whisper-quiet operation below 48 dBA
Perfect for replacing an electric system
5-year cylinder warranty (Bonus 5 year manufactured backed cylinder warranty available only through Rapid Hot Water)
Made in Australia

Requiring no solar panels and conveniently housed in one unit, the Rinnai Enviroflo 315L Heat Pump Hot Water System provides great reductions in greenhouse gas emissions. Compared to other heat pump choices, this system has a minimal charge (300 grams) of R290; a non-toxic refrigerant that has zero Ozone Depletion Potential (ODP).

For pricing please call 1300 205 539
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same day service

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Warranty on System & Parts

Servicing all of Sydney

Metro & Suburban areas



The Rinnai’s Enviroflo combines technology, performance and design into one incredible all-in-one system.  For every 1kw of electricity used, it outputs 4kw to heat your water.   The heating module on top works like an air conditioner in reverse, it extracts heat from the surrounding ambient air and converts it to hot water. It is many more times efficient than a similar-sized electric hot water system.

Due to holiday, auto restart & disinfection modes this system is suitable for infrequently used holiday homes to large families with teenagers.

This highly efficient system is an ideal upgrade for any externally installed electric storage hot water system.  It uses the same fittings as a standard electric hot water system so upgrading is straight forward. In fact, the Rinnai Enviroflo 315L is so efficient it is eligible for 27 Small Scale Technology Certificates (STC) in Sydney (Zone 3).  These certificates can be used to offset the installation cost.

You can claim your Small-scale Technology Certificate (STCs) by downloading the following form (https://www.green-bank.com.au/uploads/files/GBET_STC_SWH_2017_Oct.pdf).

This form is from the Greenbank Environmental site and is a separate business to Rapid Hot Water. We are not paid by, nor have any interest in Greenbank Environmental, you can use what every STC company you prefer, there are alternative companies to chose from.

Purchase from us and receive an additional 5 year manufacturer backed cylinder warranty (available only through Rapid Hot Water).

Ingress Protection Rating IPX4
Max Water Pressure 800
Storage Capacity (L) 315
Electrical Supply 240 V AC, 50 Hz.
Boost Capacity Yes
Refrigerant Type R290 Non Toxic Refrigerant Grade Propane
Running Current 15A
Noise Level (dBA) 48
Cylinder Warranty 5 Year (Bonus 5 Years only available through Rapid Hot Water)
Parts & Labour Warranty 3 Year
Fuel Type Electric
Tank Material Vitreous Enamel Steel
Height (mm) 2165
Width/Diameter (mm) 611
Depth (mm) 611
Installation Type External
Dry Weight (kg) 132
Unit Colour Grey
Product Code
RHW Code SKU HWS-2707-0120
Manufacturer Code 9314109273915

Shopping for your new Hot Water System with Rapid Hot Water is as simple as:

  • STEP 1

    Pick your hot water system and options

  • STEP 2

    Proceed to checkout and make payment

  • STEP 3

    We'll contact you to book in a time

  • STEP 4

    We'll deliver and install your hot water system