Description
BOX FIRE BF4 is a preassembled module specially developed to integrate an open circuit solid fuel heat source (Fireplace without built-in circulation pump) to a house heating system normally feeded by an expansion tank Gas Boiler. The module separates the heating sources and manages the functionning of the Gas Boiler based on the temperature of the Fireplace. Moreover, by means of a 3-ways motorized diverting valve combined with a heat exchanger, BF4 module produces instant Domestic Hot Water and with a second heat exchanger, it transfers efficiently the heat geneated by the Fireplace to the heating system.
Primary circuit (Fireplace) pump PTC starts when fireplace reaches a temperature of 30 °C, then at 70 °C secondary circuit (heating plant) pump PIR starts and simultaneously boiler circulation pump is switched off. From that moment the fireplace heats up the house. All electric components are controlled by means of a control unit FDG.
When Fireplace reaches 40 °C, the motorized diverting valve VD deviates the Domestic Water to the heat exchanger for instant Domestic Hot Water production.
