Bonaire 21kW non-condensing gas ducted heater (MB5NC-21)
The Bonaire MB5NC-21 is a non-condensing gas ducted heater rated at 21kW, from the Bonaire MB5NC range with a 5 star gas energy rating. It is designed for installation in the ceiling or roof cavity.
- Capacity: 21kW
- Model: MB5NC-21
- Star rating: 5 stars
- Combustion: non-condensing
- Installation: ceiling or roof cavity
- Configuration: ducted heating
The heater sits in the roof cavity with supply air ducted to outlets in each room. Room air is drawn back to the cabinet through a central grille and duct, heated and sent out again by the heater's fan. A flue is run from the cabinet up through the roof, and gas and power are brought to the heater in the roof space. Installation, gas connection and flueing must be carried out by a licensed gasfitter.
When replacing an existing roof space heater, compare the cabinet size, flue position and duct connections with the old unit so the new one can be fitted with minimal change. Check the access hatch and roof space dimensions, confirm the gas type at the property because the listing does not state it, and have the 21kW output checked against the home's heat load.