The WOLF gas condensing boilers from the MGK-2 series comes in 6 sizes and covers an output range from 64 to 1000 kW. By combining aluminium alloy, high-performance heat exchangers with energy efficient premix burners, the systems can modulate between 17 and 100% with optimum burner runtimes, an important energy-saving feature. In a cascade configuration, the MGK-2 can even achieve a heating output of up to 5 megawatts.