Viessmann Gas Boilers – Vitocrossal 300

Viessmann Boilers

CU3A Series gas-fired condensing Viessmann Gas Boilers with stainless steel Inox-Crossal heat exchanger and MatriX dome gas burner.

Rated input: 19 to 199 MBH (single) / 1592 MBH (cascade).

  • 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 passageways allows 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.