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Wolf FGB-K-28 condensing gas boiler, dual-purpose, compact and energy-saving boiler
New FGB condensing gas boiler by WOLF. Stylish housing and compact size offer many mounting options. The internal components are made of very robust and durable materials, such as copper tubes, an aluminum-silicon heat exchanger, a composite hydraulic block, and a stainless steel c.w.u. in a dual-function boiler. Simple monobloc heat exchanger design allows high flow rates through water channels. A high efficiency pump and fan together with a heat exchanger with high thermal conductivity allows the FGB to operate in accordance with Class A of the ErP Directive. Additional components such as safety valve, condensate trap, expansion vessel, vent and flue gas flapper (for several boilers in one flue gas system) are already integrated. Combustion chamber design is optimized for very clean combustion and efficient modulation range (up to 1: 6) at low gas pressure. Built-in controller for weather control (sensor as an accessory) is compatible with all Wolf controllers, allows easy integration with the solar system and provides internet connectivity via browser or mobile app (ISM7e as an accessory). Online control and monitoring for users and service technicians gives access to the boiler from anywhere in the world (internet access required) and better operation, more savings and ultimate comfort. Large display shows all important data through a very simple and user-friendly interface. High hot water flow rate in the range of 2 l/min to 16 l/min, together with the function of quick start and quick temperature adaptation, gives us high comfort of hot water. A new system for controlling the flow of heating water through the boiler (constant high flow and return temperature difference) lowers the return temperature for greater condensation, giving us higher efficiency and a cleaner heat exchanger.Do you need help? Do you have any questions?Ask a question and we'll respond promptly, publishing the most interesting questions and answers for others. 
