Compact with 5 Star Efficiency The advanced technology of gas valve modulation is able to match the load requirements of your home, reducing its heating capacity as low as 10%*.
The secret to the MB5's five star efficiency is its multi-tube heat exchange combined with a modulating gas valve, which minimizes gas usage and modulating room air fan.
4 Zone capability is standard with an option for 8, zone motors supplied and installed by a specialist dealer at additional cost.
Operate your MB5 heater with the Bonaire My Climate® WIFI Control.