Viessmann VITODENS 100 WB1B 10-26 - 95.2% High Efficiency Modulating Gas Boiler - 83,000 BTU
- Brand: Viessmann
- Model: WB1B 26
- Hot Water System
- Natural Gas
- Stainless Steel Heat Exchanger
- Coaxial / Stainless Steel / CPVC
- Direct Vent
- Wall Hung
- Energy Star Rated
- Availability: In Stock. Ships within 3-5 days.
Accessories
Viessmann VITODENS 100 WB1B 10-26 83,000 BTU 95.2% High Efficiency Condensing Boiler
With the Vitodens 100 WB1B high efficiency gas fired condensing boiler, Viessmann has added a unique Comfort Saver Series option to its line of premium condensing boilers. Now we offer great energy savings, Viessmann quality and reliability to both their budget-conscious and discriminating customers. With an AFUE of 95.2% the Vitodens 100 is the most efficient boiler in its price range and is eligible for U.S. Federal Tax Credit. It is ENERGY STAR qualified and, together with the Vitodens 200, the only wall-mounted condensing boiler certified by the Government of Canada's Environmental Choice Program to be less harmful to the environment. The Vitodens 100 uses a full-modulation natural gas stainless steel cylinder burner to achieve reliable, whisper-quiet and low-emission combustion. All Vitodens 100 burners come factory-calibrated to save time during installation. The boiler is equipped with a built-in boiler control for room thermostat operation via TT connection. The clean and simple control interface includes a reset button, digital LCD display and adjustable high limit. For DHW control, outdoor reset operation and more, the boiler control is able to interface with any level of external control.
The benefits at a glance:
- 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.



