- Fuel type
-
Natural gas (NG) or liquid propane gas (LPG)
- Min. input (NG)
-
21,000 BTU (6.2 kW) for all models
- Max. input (NG)
-
94,000 BTU (27.5 kW) for B1HA-94
125,000 BTU (36.6 kW) for B1HA-125 & B1KA-125
- Efficiency (AFUE)
-
95% for all models
- Weight
-
79.4 lbs (36 kg) for B1HA-94 & B1HA-125
90 lbs (41 kg) for B1KA-125 - Overall dimensions
-
- Depth
-
15¾ inches (400 mm) for all models
- Width
-
15¾ inches (400 mm) for all models
- Height
-
30¼ inches (768 mm) for all models
- On-demand DHW for B1KA model
-
- Continuous draw rate *
-
3.5 USG/min (795 L/h) for B1KA-125
* At Δ t = 77°F (43K). Maximum DHW supply temperature is 140°F (60°C). - Max. flow through heat exchanger
-
3.7 USG/min (840 L/h) for B1KA-125
- Warranty
-
Limited lifetime warranty in residential applications. See warranty sheet for details.
Vitodens 100-W B1HA
The previous generation – get it while you can!
Vitodens 100-W is a gas-fired wall-mounted condensing boiler with MatriX cylinder burner and Inox-Radial heat exchanger made of stainless steel. Rated input: 21 to 125 MBH.
Highly efficient
95% AFUE rating on all models.
Excellent value
With an outstanding price/performance ratio and design.
Fuel flexibility
Uses natural gas or liquid propane – no mechanical adjustments required.
Easy installation and service
All pipe connections located at the bottom and serviceable components accessible from the front.
Multiple venting options
And venting flexibility with vent length up to 200 ft (61 m).
Compact, lightweight design
And zero clearance to combustibles make it a great choice for limited-space installations.
Every home, every budget
With its outstanding design and price/performance ratio, the Vitodens 100-W is the perfect mix of performance and value. Its compact design, zero clearance to combustibles and extremely quiet operation make the Vitodens 100-W an ideal choice even in the smallest spaces.
Outstanding versatility
The Vitodens 100-W offers the right solution for every demand – from multiple venting options to fuel flexibility (NG or LP) right out of the box. Plus, installation, service and maintenance are designed to be fast and easy with all pipe connections located at the bottom and serviceable components easily accessible from the front.
Stainless steel MatriX cylinder burner
Reliable and consistent performance
Stainless steel is the best choice for long-term reliability. That's why the Vitodens 100-W is equipped with a stainless steel Inox-Radial heat exchanger and MatriX cylinder burner. Developed and manufactured by Viessmann, these high-quality stainless steel components maximize performance and reliability. Plus, the "self-cleaning" heat exchanger contributes to the boiler’s long service life and dependable performance.
Lifetime warranty
With a limited lifetime warranty in residential applications, you can be sure your investment will deliver long-lasting value, year after year. For detailed terms and conditions, see the warranty sheet.
Stainless steel Inox-Radial heat exchanger
Advantages of the Vitodens 100-W
Look inside the boiler
B1KA model
- Inox-Radial heat exchanger.
- MatriX cylinder burner.
- Integrated expansion tank (B1KA combi boiler only).
- Variable speed combustion fan.
- Integrated pump.
- Plate heat exchanger for on-demand DHW (B1KA combi boiler only).
- Backlit LCD touchscreen.