Product Features:
Viessmann – Manufacturer’s Website
Product Flyer
Viessmann VITODENS 100
Gas-fired wall-mounted condensing boiler with modulating stainless steel cylinder burner and Inox-Radial heat exchanger surface.
Rated input: 37 to 118 MBH
The perfect mix of performance, quality and value, the Vitodens 100-W gas-fired wall-mount condensing boiler is ideal for any home and any budget. With added product features, the new generation of this popular boiler now offers even greater versatility and choice.
The benefits at a glance:
• New! On-demand DHW now on Vitodens 100 with the new CombiPLUS Kit
• Fits Any Home and Budget with high performance at an attractive price.
• Outstanding Efficiency of 95.2% A.F.U.E. on all models.
• Lasting Performance with industry-leading Viessmann made SA240 316 Ti stainless steel Inox-Radial heat exchanger constructed to CSA B51 and ASME Section IV.
![]() |
Viessmann made stainless steel Inox-Radial heat exchanger |
- Low-Emission Combustion with Viessmann made stainless steel MatriX cylinder burner for natural gas or propane. Factory calibrated.
![]() |
Viessmann made stainless steel MatriX cylinder burner |
- Versatile On-Board Boiler Control interfaces with most external controls. Now with integrated 0-10V and OpenTherm® communication ability. Outdoor temperature sensor standard.
- Greater Venting Flexibility with increased vent length (up to 200’) 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). - Suitable for Altitude Levels of up to 10,000 ft. / 3000 m.
- Easy Installation, Service and Maintenance with all pipe connections located at the bottom and serviceable components easily accessible from the front.
- Extremely Quiet Operation; quieter than most refrigerators.
- Compact, Lightweight Design and zero clearance to combustibles.
- Built-in Automatic Frost Protection prevents freeze-up during long shut-off periods.
- Limited Lifetime Warranty in residential applications.
Vitodens 100-W Technical Data
Model | WB1B 26 | WB1B 35 | |||||
Natural gas and LPG | |||||||
CSA input | MBH kW |
37-91 8.5-23.4 |
37-118 8.5-29.3 |
||||
CSA output * | MBH kW |
34-83 7.6-21 |
34-108 7.6-26.4 |
||||
A.F.U.E. | % | 95.2 | 95.2 | ||||
Overall dimensions | |||||||
Depth | inches mm |
14⅛ 360 |
14⅛ 360 |
||||
Width | inches mm |
15¾ 400 |
15¾ 400 |
||||
Height | inches mm |
28½ 725 |
28½ 725 |
||||
Shipping weight | lbs kg |
95 43 |
95 43 |
* Output based on 140ºF / 60ºC, 120ºF / 49ºC system supply/return temperature.