Rinnai C Series Review


From $647

Product highlights
  • Environmentally friendly
  • User friendly
  • Cooling only
Compare Air Conditioning Rating
Brand reliability score
Capacity (kW) of systems in this series
2.5 kW, 3.4 kW, 5.0 kW, 7.0 kW, 8.0 kW

Key Features

R32 Refrigerant

This refrigerant provides higher energy efficiency while using lower refrigerant volumes and has lower global warming potential than traditional refrigerants.

Demand Control

Features built in demand response capability (DRED), which helps reduce overall power consumption at peak times. This is function is subject to availability from your energy provider.

3D Airflow

Provides control of both horizontal and vertical air blades, providing balanced room temperature and comfort.

Efficient Energy Savings

The C series has been awarded efficiency star ratings of up to 5.5 stars. As it is combined with R32 refrigerant, this series provides higher energy efficiency while using lower refrigerant volumes.

Self-Diagnosis Function

If a fault occurs the system will switch off automatically to protect itself. It will then establish what is at fault and the indoor will display the relevant error code to indicate what has gone wrong.

Quiet Operation

A specifically designed air tunnel has been optimised to deliver better air distribution, reaching all corners of the room.


Front Panel Colour
Reverse Cycle
Indoor Type
Wall Mounted
Power Supply
1 Phase, 220-240, 50Hz
Manufacturer Warranty (Years)
5 years
Number of fan speeds

C Series

Specification2.5 kW 3.4 kW 5.0 kW 7.0 kW 8.0 kW
Model Number - Outdoor UnitHONCS25B HONCS34BHONCS50BHONCS70BHONCS80
Cooling Capacity (kW)
Energy Star Rating – Cooling
Indoor Sound Level (H/SL)45/42/35/32/2447/41/38/34/2849/43/40/36/3351/49/45/41/3551/49/45/41/35
Outdoor Sound Level (H/SL)6262687272
Indoor unit Dimensions (HxWxD) (mm)294 × 910 × 206 315 × 1010 × 220 340 × 1186 × 258 340 × 1186 × 258 340 × 1186 × 258
Outdoor unit Dimensions (HxWxD) (mm)553 × 817 × 300 602 × 853 × 349 699 × 920 × 380 808 × 953 × 433 808 × 953 × 433

* C = Cooling H = Heating

Links and Documents

Operational manual and other product-related documents

Controller Features

  • App or remote
  • iOS or Android
  • On/off timer
  • Turbo function
  • Follow Me
  • LCD display
  • Swing control

Other Features

  • Handles extremes
  • Anti-corrosion features
  • Low energy consumption


Far superior than our Fujitsu

Very economical, fast to cool and quiet function leaves the Fujitsu’s we have in the dust. And the outside unit does not vibrate like all our Fujitsu’s do. We like the 5yr parts and labour warranty which is the same as Fujitsu and we hope we don’t have to have it repaired on a regular basis like the Fujitsu. Price was brilliant compared to other inferior brands.

— Ishkaa, 9 March 2020

Great Price

Bought this in a hurry and found this as this is the most affordable from the all options. Sleek looking. When I tried it, reasonably quiet. only found later it has efficient use of electricity which is a bonus.

— Fredster, 20 April 2020

Perfect air con for the price

Bought 3 for the bedrooms really worth it great that they have the built in Wi-Fi can control the kids room from anywhere really quiet to energy bill has been good considering we run all night looking to get the big 7kw for second lounge would not hesitate in getting the Rinnai previously had other brands fitted to another house did the same job only thing different was the price of Rinnai was there great prices.

— Bruce, 22 February 2020

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