Kaden – KEX Series – External Gas Ducted Heater Review


From $1610

Product highlights
  • Electronic ignition
  • Ideal for retrofitting
  • Commercial and residential
Compare Air Conditioning Rating
Brand reliability score
Capacity (kW) of systems in this series

Key Features

Works in Colder Environments

Robust and reliable, these units are designed to operate in the coldest parts of Australia, including those with sub-zero temperatures.

Environmentally Friendly

Using natural gas produces fewer greenhouse gas emissions than refrigerated ducted units.

Immediate Heating

Heating powered by gas ducts can deliver instant warmth throughout the home.

Heat the Whole House

Installing multiple gas ducted heating outlets can warm an entire home, with fan controls for each room.

Cost Efficient

Zoning gas ducted heaters allows users to choose which rooms need to be heated and which do not. This can save on running costs when different rooms are empty of people.

Reduced Fluctuations

A modulating gas valve maintains an even temperature, keeping the home comfortable.


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

Kaden - KEX Series - External Gas Ducted Heater

Specification15.5 kW 20.0 kW 28.0 kW 15.5 kW 20.0 kW 28.0 kW
Model Number - Indoor UnitKEX315 KEX320 KEX328KEX415KEX420 KEX428
Heating Capacity (kW)15.520.028.015.520.028.0
Energy Star Rating – Heating3.
Indoor unit Dimensions (HxWxD) (mm)775 x 420 x 850 775 x 420 x 850894 x 579 x 1030775 x 420 x 850775 x 420 x 850894 x 579 x 1030

* C = Cooling H = Heating

Links and Documents

Operational manual and other product-related documents 

Controller Features

  • Easy to read screens
  • Basic controller available
  • Wired or wireless options
  • Zone selection
  • Off / on controls
  • Digital display
  • App available

Other Features

  • Weather Proof Flue
  • Air flow management
  • Draft prevention



We replaced our old clapped out unit with a Kaden unit based on recommendations from some family friends which had them installed at their holiday rental home. The unit feels a lot more powerful than the 7kw brand name it replaced and also seem to reach temperature much quicker. The indoor unit also has a pure white look to it that fitted in our colour scheme much better. Remote is simple to use and our power bill definitely has improved. Also has simple filters that pull out from the top so you don’t need to open front panel to access.

— Big_Baymax, 13 June 2018


Great looking product, great warranty and competitive pricing.

— Alan, 19 October 2019


Quality equipment! Great service!

— Brett, 21 December 2019

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