The benefits at a glance

Vitodens 100-W, B1HA space heating boiler and Vitodens 100-W, B1KA combi boiler fits any home and budget with high performance at an attractive price.

Outstanding efficiency of 95% A.F.U.E. on all models.

Low-emission combustion with fully-modulating Viessmann stainless steel MatriX cylinder burner for natural gas or propane.

User-friendly backlit LCD touchscreen boiler control.

Lasting performance with proven Viessmann stainless steel Inox-Radial heat exchanger constructed to CSA B51 and ASME Section IV.

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.

Built-in on-demand domestic hot water (DHW) with Vitodens 100-W, B1KA Combi boiler. Ideal for apartment units or houses with small mechanical rooms and a single DHW draw point.

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. 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-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.

Up to 95% Efficiency & Combi Available!

K2 Watertube

Condensing Gas Boiler
Stainless Steel Heat Exchanger

With an AFUE up to 95%, the K2 condensing boiler does an outstanding job of establishing a balance between high efficiency and high value. This is achieved by mating the proven and reliable performance of a high efficiency heat exchanger with the Sage2.2 control system. The impressive list of high-value standard features that come with the K2 boiler adds to the overall savings that it can provide. The K2 is also wall-mounted, offering a space-saving, low depth profile that is tremendously flexible in tight installation spaces.

High efficiency, condensing boiler – Up to 95% AFUE
80 – 180 MBH (5 sizes) and Combi Kit Available
ENERGY STAR Certified – Efficiency tax credits/rebates may apply
Reliable stainless steel heat exchanger that has been proven in millions of households
Sage 2.2 Control System with factory pre-sets to speed installation
Touch screen diagnostic display
FREE 5-year parts warranty included
UNMATCHED High Altitude Performance

The K2 Boiler System is a series of optional enhancements that offer ease of installation, exclusive features, and outstanding overall value and performance! Most components that comprise the K2 boiler system are designed to be used with the Sage2.2 Control System, and can be installed either individually or as a comprehensive upgrade package. Please visit www.k2boiler.com to learn more!