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Bonaire Heating MB5

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  • Same day shipping for stocked items
  • Money back guarantee
  • Outstanding service & expert technical advice
  • AU owned & operated for 50 years

Quick Overview

With the MB5 you get high efficiency (5.4 Star) heating by the use of a primary and secondary heat exchanger, which combined gives you 90% plus efficiency - the ultimate in ducted central heating from Bonaire.

Add this to Bonaire’s unique predictive logic modulation system, modulating both the gas rate and the air delivery to minimise energy consumption and inefficient on/off cycling. This reduces your energy bills whilst still maintaining the ultimate in comfort. The MB5 can also reduce the heating capacity to 10%, allowing you to further reduce your energy bills if you only want to heat a small area of your home.

The MB5 series is available in:

  • 14, 20, 25, 30 and 35 kW versions 
  • Models for either internal or external installation
  • Natural Gas (with LPG models available on special order for 20 and 30 kW versions)
  • See table below for model comparisons and use the menus to see pricing on the model right for you.

Benefits of a Bonaire MB5 5 Star Gas Central Heater

  • Choice of up to 4 Navigator controllers with hardwired and wireless options to precisely adjust the temperature throughout your home
  • 4 zone control board as standard – heat only the rooms you need
  • Option of an 8 zone system for total comfort and maximum efficiency
  • Optional multiple room sensing and thermostat controls
  • Quiet operation

Star Rating
Bonaire MB5

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  • 90% plus gas efficiency – more heat for each dollar you spend
  • Highly efficient 4 stage heat exchanger with a primary and stainless steel secondary to efficiently heat your home
  • Predictive logic modulation that automatically adjusts the gas rate as the home approaches the set temperature = reduced energy bills
  • Auto adjusting air delivery that works in unison with the predictive logic gas modulation, further reducing energy bills
  • Colourbond® cabinet for External Models
  • Induced draft combustion for improved energy efficiency
  • Compatible with Bonaire Inverter Dual Cycle systems

Which MB5 Model is right for your home?

(Select from the menus above to see the price combinations for all these variations)

Model Star


Extra Air Versions - opimised for add on cooling

Typical number

of 150mm ducts

Length Width Height Weight
MB5-14 Internal 5.4 14 NG only 480 5-9 1142 385 666 70
MB5-14 External 5.4 14 NG only 480 5-9 1142 385 666 70
MB5-20 Internal 5.4 20 NG or LPG 540 7-11 1142 385 666 73
MB5-20 External
5.4 20 NG or LPG 540 7-11 1142 385 666 73
MB5-20 XA Internal
5.4  20  NG only 830   7-14 1142 385 666  
MB5-30 Internal
5.4 30 NG or LPG 830 8-15 1142 475 666 75
MB5-30 External
5.4 30 NG or LPG 830 8-15 1142 475 666 75
MB5-30 XA Internal
5.4 30 NG only 1050  8-20 1142 475 666  
MB5-35 Internal 5.4 35 NG only 1050 8-20 1142 475 666  

Additional Information

Recommended Accessories

Additional Information

SKU main-bonaire-heating-main
Energy Star Rating No

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Bonaire Heating MB5 0 out of 1 5 based on ratings. user reviews.