Fire box box bf2 power 35kw w/boiler detachments and control unit without cover

Description

BOX FIRE BF2 is a pre-assembled module that allows you to heat rooms where the heating system is normally powered by a closed vessel boiler, through the use of hot water produced by an open vessel solid fuel heat source (fireplace boiler or thermo-stove without built-in circulator). It allows the separate operation of the primary circuit (fireplace boiler) and secondary circuit (boiler) as required by the regulations in force, with excellent heat transfer by means of a 30 or 40 plate heat exchanger. The BF2 model also manages Domestic Hot Water, diverting the water from the mains from the Boiler circuit to that of the Fireplace Boiler - equipped with a coil - when the latter is at temperature.

When the temperature of the fireplace boiler exceeds 30 °C, set on the FDG control unit, the PTC circulation pump of the fireplace boiler starts. When the temperature exceeds a second value of 40 °C, which can also be set, the VD motorized three-way valve diverts the DHW production from the boiler to the fireplace boiler. Finally, at a temperature of 70 °C, the PIR circulator of the heating system is started and the closed vessel boiler is switched off at the same time.