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Gas condensing boiler CGB-2 – state of the art condensing technologyMore versatile than ever – better than ever. The new CGB-2 wall mounted gas condensing boilers are worthy successors to their consumer test winning predecessors. With output levels of 14, 20 or 24 kW,..

State of the art oil condensing technology The TOB is based on the same general principle as the COB – the German consumer association "Stiftung Warentest" test winner. However, Wolf development engineers have now been able to improve the burner unit even further. The most pert..