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Viessman Vitodens 100 Natural gas-fired wall-mounted condensing boiler with modulating stainless steel cylinder burner and Inox-Radial heat exchanger surface. Rated input: 29 to 100 MBH - 9 to 29 kW

Features:

• Outstanding Efficiency of up to 98% with full modulation and 95.1% A.F.U.E. on all models.
• Lasting Performance with Viessmann-made SA240 316 Ti stainless steel Inox-Radial heat exchanger constructed to ASME Section IV and CSA B51.
• Low-Emission Combustion with fully-modulating natural gas stainless steel cylinder burner. Factory calibration eliminates adjustments in the field.
• Control Variety Integrated boiler control interfaces with any level of third-party control – from room thermostat to outdoor reset and more.
• Multiple Venting Options
• - Horizontal or vertical sealed combustion coaxial vent system (factory supplied).
• - Horizontal, vertical or hybrid sealed combustion double-pipe vent system (field supplied).
• - Horizontal or vertical single-wall vent system (field supplied).
• Easy Installation, Service and Maintenance with all pipe connections located at the bottom and serviceable components easily accessible from the front.
• Compact, Lightweight Design and zero clearance to combustibles make it a great choice for limited-space installations.
• Extremely Quiet Operation; quieter than most refrigerators.
• Built-in Automatic Frost Protection allows boiler to be shut off for an extended period of time while protecting it against freeze-up.
• Suitable for altitude levels of up to 5000 ft. / 1500 m.
• Limited Lifetime Warranty in residential applications.

Specifications:

Additional Images:

Vitodens 100-W Cut-Away View

Inox-Radial heat exchanger surface

Natural gas stainless steel cylinder burner