The „NovoCondens BOB 20“ by BRÖTJE is an on-ground, room saving oil condensing boiler. Its heat emission can be controlled steplessly and according to consumption in an area between 50% and 100%. Caused by the two-step oil blue flame burner and 24 l water volume it has a low pulse. The primary heat exchanger is made of light aluminium-silicum, the condensation exchanger of robust carbon. Thus, low noise operation is possible.