Viessmann Vitodens 100-W

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.
  • Lasting Performance with industry-leading Viessmann made SA240 316 Ti stainless steel Inox-Radial heat exchanger constructed to CSA B51 and ASME Section IV.
Inox-Radial 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.
MatriX burner 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 wall-mounted condensing boiler

Model WB1B 26 WB1B 35
Rated input MBH 
kW
37 – 91
8.5 – 23.4
37 – 118
8.5 – 29.3
Efficiency (A.F.U.E.) % 94 94
Altitude levels ft.
m
0 – 10,000
0 – 3,048
0 – 10,000
0 – 3,048
Dimensions
Depth inches
mm
14⅛ 
360
14⅛ 
360
Width inches 
mm
15¾ 
400
15¾ 
400
Height inches 
mm
28½ 
725
28½ 
725
Weight lbs
kg
78
34.1
78
34.1

CombiPLUS Kit for on-demand DHW

Connected to Model WB1B 26 WB1B 35
DHW supply temperature °F 
°C
140
60
140
60
Continuous draw rate * USG/h 
L/h
156
589
216
800
Dimensions
Depth inches
mm
9.8 
250
9.8 
250
Width inches 
mm
17 
432
17 
432
Height inches 
mm
8.7 
223
8.7 
223
Weight lbs
kg
25
11
25
11
Min. / max. distance between boiler and CombiPLUS Kit inches 
mm
11.5 / 36
292 / 915
11.5 / 36
292 / 915

*At a 63 °F maximum temperature rise with Vitodens 100, WB1B-35.