Buderus SSB combustion, high-efficiency stainless steel boilers with condensing technology from Bosch are designed for a range of applications, from small studio units up to commercial buildings. Features include an ASME SA-240 heat exchanger, integrated premix burner, and pneumatic air-gas system for optimized combustion. The boilers have heating capacities from 85MBH up to 1024MBH input, a 5-1 turndown ratio, onboard control that includes weather compensation, Modbus connectivity, two-wire cascades link, terminal wiring, low-water cutoff and safety temperature high limiter with manual reset. 800/283-3787; www.boschheatingandcooling.com.