
Gas Condensing
Tec hnolo gy
Vitodens 100-W – 37 to 118 MBH
Space Heating Boiler with Optional CombiPLUS Kit for On-Demand DHW
Stainless steel, Viessmann-made Inox-
Radial heat exchanger
Low-emission, Viessmann-made MatriX
cylinder burner
Every home. Every budget.
With its outstanding design and price/
performance ratio, the Vitodens 100 is
the perfect mix of performance and value.
Its compact design, zero clearance to
combustibles and extremely quiet operation
make the Vitodens 100 an ideal choice even
in the smallest spaces. Plus, with a limited
residential lifetime warranty, you can be sure
your investment will deliver long-lasting,
value year after year.
Reliable and consistent performance
Stainless steel is the best choice for long-
term reliability. That’s why the Vitodens 100
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 ser vice life and dependable
performance.
1
2
Outstanding versatility
The Vitodens 100 offers the right solution
for every demand – from multiple venting
options to fuel fl exibility (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. You’ll save time
and money with fast service and
maintenance calls.
Helps you save
Select an easy-to- use room thermostat, or,
for greater control and additional energy
savings, utilize the boiler’s on-board control,
which automatically adjusts the boiler water
to outdoor temperatures. This not only
boosts fuel savings, but also keeps your
home warm and comfortable at all times.
On-demand DHW with optional
CombiPLUS Kit
With the new CombiPLUS Kit add
on-demand domestic hot water (DHW) to
your new Vitodens 100 space heating boiler
and say goodbye to your DHW tank. Enjoy
DHW at the snap of your fi ngers all day
long with an outstanding fl ow rate of up
to 3.6 GPM
the energy-saving on-demand indirect-fi red
design. Slightly bigger than a large shoe box,
the CombiPLUS Kit installs underneath or
beside the boiler and requires only minimal
piping and electrical connections. Featuring
stainless steel heat exchanger, pressure
bypass valve, DHW temperature and fl ow
sensors, 3-speed pump, 3-way diverting
valve, and Low Lead Content Certifi cation
(NSF/ANSI 372), get reliable DHW day
after day.
†
, plus added cost savings with
1
Inox-Radial heat exchanger
3
2
Modulating MatriX cylinder burner
3
On-board boiler control

1
Stainless steel plate-type heat exchanger
2
3-speed DHW and space heating pump
3
3-way diverting valve
4
Water hammer arrestor
3
1
Benefi ts at a glance — Vitodens 100-W
Fits any home and budget with high performance at an
attractive price
Exceeds Energy Star® Effi ciency Requirements
Lasting performance with proven Viessmann SA240 316 Ti
stainless steel Inox-Radial heat exchanger constructed to CSA
B51 and ASME Section IV
Low-emission combustion with fully-modulating Viessmann
stainless steel MatriX cylinder burner for natural gas or propane;
factory calibrated
Versatile on- board Viessmann boiler control interfaces with most
external controls; integrated OpenTherm® communication ability;
energy-saving outdoor temperature sensor standard
Greater venting fl exibility with vent length up to 200’ and multiple
venting options; new rigid and fl exible PP(s) vent options
Suitable for altitude levels of up to 10,000 ft. / 3,000 m
Easy installation and service with pipe connections located at the
bottom and serviceable components accessible from the front
Extremely quiet operation; quieter than most refrigerators
Limited lifetime warranty in residential applications
Easy expansion with CombiPLUS Kit for energy-saving,
on-demand DHW
Produc t may not be exac tly as shown .
Benefi ts — Vitodens 100-W with CombiPLUS Kit
All the benefi ts of a Vitodens 100 boiler, plus on-demand
domestic hot water (DHW) with optional CombiPLUS Kit
DHW at the snap of your fi ngers all day long! Up to 3.6 GPM
Energy-saving and low- cost, on -demand indirect-fi red
DHW production
Certifi ed to NSF/A NSI 372 for Low Lead Content
Reduced energy waste with fully-modulating input from boiler
Space-saving and lightweight wall-mount design; more compact
than any other hot water heater
Virtually silent DHW production
Easy installation with piping and electrical connections included
Quality you can count on! Stainless steel heat exchanger,
built-in pressure bypass and 150 psig working pressure rating
Reliable and consistent DHW supply with built-in DHW
temperature and fl ow sensors
Complete space / DHW heating management by boiler
control, powerful built-in 3 -speed pump and diverting valve
Eliminates need for DHW storage tank in many lower-load
applications; great fi t for apartments, condos, cottages,
single-family homes, or installs where space is at a premium
4
Optional CombiPLUS Kit
2
†
†
At a 63 °F m aximum temp erature rise w ith Vitode ns 100, WB1B- 35

Technical Da t a
Vitodens 100-W, WB1B wall-mounted condensing boiler
Model WB1B 26 35
Rated input MBH 37 - 91 37 - 118
Effi ciency % AFUE 94% 94%
Altitude Levels ft. up to 10,000 ft. up to 10,000 ft.
Dimensions Depth 14.13 14.13
(inches)
Weight lbs 78 78
Width 15.75 15.75
Height 28.5 28.5
®
Viessmann Manufacturing
Company Inc.
Waterloo, ON Canada
1-800-387-7373
www.viessmann.ca
Viessmann Manufacturing
Company (U.S.) Inc.
Warwick, RI U.S.A.
1-800-288-0667
www.viessmann.us
28.5”
15.75” 14.13”
®
28.5”
Optional CombiPLUS Kit for on- demand DHW
Connected to Model WB1B 26 35
DHW Supply Temperature ºF / ºC 140 / 60 140 / 60
Continuous Draw Rate USG/h 156
Dimensions Depth 9.88 9.88
(inches)
Weight lbs 25 25
Min. / Max. distance between
boiler and CombiPLUS Kit
†
At 63 °F m aximum temp erature rise.
Width 17 17
Height 8.75 8.75
Inches 11.5 / 36 11.5 / 36
†
216
†
H
17”
11.5” / 36”
(min. / max.)
8.75”
Technical information subject to change without notice.
5603 849 v1.5 10/13 Printed in Canada