If you want a simple but feature packed unit, then the Bonaire MB3 star ducted gas central heater is the ideal choice for you. The MB3’s unique helical tube heat exchanger maximises heat transfer, giving 3 star energy efficiency. All MB3 external models have a Colourbond® cabinet, electronic ignition and state-of-the-art diagnostic control board. The digital manual thermostat or optional Navigator Wall Mounted programmable controller allow you to preset four independent heating periods per day. Just set and forget.


  • Range of internal and external models available
  • Unique multi tube heat exchanger delivering maximum energy efficiency up to 84%
  • Induced draft combustion for improved energy efficiency
  • Electronic ignition eliminating the need for a pilot light
  • Slimline digital thermostat included with unit
  • Simple, easy to use start/stop timer
  • Easy installation
  • State-of-the-art technology
  • Efficient operation 
  • Environmentally conscious design 
  • Backed by Bonaire’s own National Service Division 
  • External model in Colourbond®cabinet - can be fitted internally if required
  • Engineered for Australian condition
  • Compact
  • Internal units splitable for easy installation - can be fitted through a man-hole
  • Designed for small compact roof spaces - 30mm top clearance
  • External unit is ideal for the changeover market
  • Upgrade option to a Wall Mounted Navigator Controller


The MB3’s optional programmable digital thermostat allows the heater to start at pre-programmed times.


Installed by specialists

For added peace of mind, we recommend you choose one of our authorised Bonaire specialists, who have been trained to ensure your Bonaire Heater is installed to the highest standards.


Every Bonaire MB3 is manufactured to stringent quality standards and fully supported by Bonaire’s National Service Division. The MB3 internal unit is backed by a 3 year domestic parts and labour warranty and 10 year parts only warranty on the heat exchanger and burner. The MB3 external unit is backed by a 5 year domestic parts and labour warranty and a 10 year parts only warranty on the heat exchanger and burner. It’s real peace of mind as you and your family enjoy the ultimate in home climate control. All Bonaire outdoor units are manufactured with an anti-corrosion material for long lasting reliability.