Vitodens 100-W

Delivering peace of mind for generations to come

Vitodens 100-W

The perfect mix of value, quality and performance

Vitodens 100-W is a gas-fired wall-mounted condensing boiler with modulating MatriX-Plus cylinder burner and Inox-Radial heat exchanger made of stainless steel. Rated input: 8.5 to 199 MBH.

WiFi built-in
3.5" LCD screen
B1KE models offer on-demand DHW
Adjustable height control panel

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Smart home ready

Mobile ViCare app and WiFi connectivity included.

Highly efficient

95% AFUE rating on all models.

Compact, lightweight design

And zero clearance to combustibles make it a great choice for limited-space installations.

Easy installation and service

All pipe connections located at the bottom and serviceable components accessible from the front.

Fuel flexibility

Uses natural gas or liquid propane – no mechanical adjustments required.

Multiple venting options

And venting flexibility with vent length up to 180 ft (60 m).

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.

Peace of mind through future-proof design

The Vitodens 100-W offers an integrated WiFi interface, which allows the system to connect directly to the internet allowing for seamless integration with the ViCare app for smartphone or tablet. Once connected, ViCare offers a range of homeowner tools, including remote operation of your boiler, DHW scheduling and temperature control, visualized fuel usage and cost savings, and the peace of mind that your home's heating system is up and running, no matter where you are.

Image: Fizkes /

Clean and efficient

At the heart of the Vitodens 100-W is the Viessmann-made MatriX-Plus cylinder burner with Lambda Pro Plus combustion control. Together, they offer clean combustion, 10:1 turn-down ratio and quiet operation with either propane or natural gas, which can be changed at the push of a button.

Stainless steel MatriX-Plus 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-Plus 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

Fits any home and budget with high performance at an attractive price.
Reliable on-demand domestic hot water with Vitodens 100-W, B1KE combi models.
Lasting performance with proven Viessmann titanium-stabilized stainless steel Inox-Radial heat exchanger.
Low-emission combustion for environmentally-friendly operation. Less than 20 ppm NOx (at 3% O2).
Easy piping due to two sets of tappings, along with built-in pump and diverter.
Fully-modulating input with 10:1 turn-down ratio eliminates energy waste.
Suitable for high altitudes up to 10,000 ft (3,000 m) with no power loss and automatic software vent length adjustment.
Extremely quiet operation; quieter than most refrigerators.

Look inside the boiler

  1. Inox-Radial heat exchanger
  2. MatriX-Plus cylinder burner
  3. Burner blower
  4. Gas and water connections
  5. Lightguide and 3.5" LCD display
  6. Integrated boiler and DHW pump
  7. DHW plate heat exchanger (B1KE combi models only)

Product details

Fuel type

Natural gas (NG) or liquid propane gas (LPG)

Min. input (NG)

8,500 BTU (2.5 kW) for B1HE-85
12,000 BTU (3.5 kW) for B1HE-120 &  B1KE-120
15,500 BTU (4.5 kW) for B1HE-150
19,900 BTU (5.8 kW) for B1HE-199 &  B1KE-199

Max. input (NG)

85,000 BTU (24.9 kW) for B1HE-85
120,000 BTU (35.2 kW) for B1HE-120  &  B1KE-120
150,000 BTU (44.0 kW) for B1HE-150
199,000 BTU (58.3 kW) for B1HE-199  &  B1KE-199

Efficiency (AFUE)



108 lbs (49 kg) for B1HE-85 & B1HE-120
110 lbs (50 kg) for B1KE-120
179 lbs (81 kg) for B1HE-150 & B1HE-199
190 lbs (86 kg) for B1KE-199

Overall dimensions


19¾ inches (500 mm)  for B1HE-85, B1HE-120,  B1KE-120
21¾ inches (550 mm)  for B1HE-150, B1HE-199,  B1KE-199


17¾  inches (450 mm) for all models


33¾  inches (859 mm)  for  B1HE-85, B1HE-120,  B1KE-120
39 inches (989 mm)  for  B1HE-150, B1HE-199,  B1KE-199

On-demand DHW for B1KE models

Continuous draw rate *

3.3 USG/min (757 L/h)  for B1KE-120
4.7  USG/min (1070 L/h)  for B1KE-199

* 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 B1KE-120
5.3 USG/min (1200 L/h)  for B1KE-199


Limited lifetime warranty in residential applications. See warranty sheet for details.

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