Viessmann

- Available in three models from 12 to 125 MBH (single-boiler installation).

- Efficiency up to 98% at full modulation and 95% AFUE.

- Lasting performance with industry-leading Viessmann made SA240 316 Ti stainless steel Inox-Radial heat exchanger constructed to CSA B51 and ASME Section IV.

- Low-emission combustion with Viessmann made stainless steel MatriX cylinder burner for natural gas or propane. Factory calibrated.

- Wide modulation range up to 6.5:1 to precisely match load conditions.

- Fast installation and reduced maintenance with Lambda Pro, industry-first intelligent combustion management system. Adjusts automatically to gas type and quality. No fuel conversion kit required.

- On-board Vitotronic control features large display with text and graphics for straightforward, menu-driven programming and operation.

- Outdoor reset boiler and system control for multi-temperature space and DHW heating.

- Greater venting flexibility with increased vent length (up to 180’) and multiple venting options.

– Horizontal or vertical sealed combustion coaxial venting (factory supplied).
– Horizontal, vertical or hybrid sealed combustion double-pipe venting (field supplied).
– Horizontal or vertical single-wall venting (field supplied).

- Compact, lightweight design and zero clearance to combustibles.

- Extremely quiet operation; quieter than most refrigerators.

- True high-altitude operation up to 10,000 ft / 3,000 m with simple electronic adjustment.

- Limited lifetime warranty in residential applications.