Viessmann Vitocrossal 300 CU3A 199 w/ Vitoconnect

The benefits at a glance Compact, floor-standing gas condensing boiler from 19-199 MBH. High efficiency of 95% AFUE on all models. High temperature operation of up to 90°C (194°F). Vitocrossal Pocket Design with wide water passage ways allow for system/full flow applications. No dedicated boiler pump required and eliminates primary/secondary piping. MatriX dome gas burner with 5:1 turndown ratio to ensure high efficiency and extremely clean combustion. High water volume extends burner run time and reduces cycling. A self-calibrating Lambda Pro combustion management system ensures optimal combustion efficiency at all times regardless of gas/air quality. Simple commissioning with no field adjustments and adjusts to all fuel types (NG and LPG). Durable, reliable, and long service life with Inox-Crossal stainless steel heat exchanger and high mass design. Multiple venting options and configurations with vent lengths up to 198 ft. Multi-boiler installation with 8 boilers up to 1592 MBH. EN