![](../../../edit/image_cache/bonaire_mb4_outside_crop_525x314c0pcenter.jpg)
The fully featured 4 star performer
The MB4 achieves its four star efficiency with it's multi-tube heat exchanger combined with a modulating gas valve which minimises gas usage.![](../../../edit/image_cache/adobestock_221448307_856x482c0pcenter.jpg)
Compatible with Bonaire Dual Cycle refrigerated air conditioning.
4 Zone capability is standard with an option for 8, zone motors supplied and installed by a specialist dealer at additional cost. Operate your MB4 heater with the Bonaire My Climate® WIFI Control.You might also like
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