Discontinued Product, please contact 0800 RINNAI for more information

Discontinued Product, please contact 0800 RINNAI for more information

Rinnai Slimline 18 MJ and 22 MJ

Rinnai Slimline 18 MJ and 22 MJ

Provides an attractive warm glow and powerful instant heat.
The Rinnai Slimline is a flued radiant convector heater. Compact in size and easily installed in a wall or existing masonry cavity.

- Versatile: Can be operated without electricty
- Slim-flue: Easily installed
- Simple: Reassuringly safe and operation is a breeze

Suitable for
Domestic heating appliance, ideal for medium sized living rooms. Heats up to 42 m² (depending on where you live).

Gas type
22 MJ model is available for Natural Gas or LPG. Gas type is specified at the time of purchase.

18 MJ - NG only.

Appliance unable to be converted.

General clearances
This unit is not designed to be built onto bookcases or shelves.

  • 150 mm (top and sides)
  • 1 m (extending in front of heater)
  22 MJ model 18 MJ model
Input: 22 MJ/h 18 MJ/h
Output: 1.4-4.0 kW 1.4-3.2 kW
Efficiency: 66% 61.4%


Burner Simpex—single entry
Data Plate Right hand side of burner chamber assembly behind front panel
Flue Spigot - Round Diameter 22 MJ = 100 mm
18 MJ = 75 mm
Floor to centre of spigot = 515 mm
Gas Connection

3/8 " BSP flare fitting with flare nut, situated:
- 85 mm from floor
- 140 mm from outside right hand edge of case
- 65 mm from rear

Gas Control One touch control
Ignition Piezo ignition
Operation Rinnai multifunctional gas valve featuring Piezo ignition, flame failure device, pressure regulator and pressure test point
Market Release October 1990
Last Manufactured 22 MJ model: June 2012
18 MJ model: 2009


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At Rinnai NZ,  adding a touch of magic to life’s daily pleasures is what we are all about so that people can get on with the more complicated challenges in life.  Rinnai makes daily routines, like taking a hot shower or heating your home, simple, enjoyable and stress-free.  

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