This state-of-the-art condensing boiler is rated with an exceptional Annual Fuel Utilization Efficiency (A.F.U.E.) of up to 95.2% and a combustion efficiency of up to 98%, making it the most efficient boiler in it's class. The radial design of the Inox-Radial stainless steel heat exchanger provides abundant surface area for maximum heat transfer. And the vertical flow of the flue gas condensate keeps the heat exchanger clean and reliable. The Viessmann boilers are CSA certified for Canada and USA and is built in compliance with ASME code requirements. The heat exchanger is marked with an ASME/NB rating plate. Compact and ultra-quiet, it integrates easily into any part of your living area, including closets, kitchens or bathrooms. Its industry-leading technology makes this boiler the ultimate experience in heating comfort and reliability. And like all Viessmann products, the Vitodens 200, with its low-emission MatriX-compact gas burner, meets the most stringent emission regulations worldwide.

Features and Benefits of Viessmann VITODENS 200, WB2B 9-35 High Efficiency Residential Combi Boiler:

• The core of the Viessmann Vitodens 200, WB2B 9-35 is the proven Inox-Radial parallel-coil stainless steel heat exchanger. Heating water flows through two separate coils of the heat exchanger arranged in parallel. This design not only provides a large heat transfer surface, but also guarantees particularly low flow resistance, reducing flow noise and the energy consumption of the heating circuit pump.
• The integrated full modulation MatriX-compact gas burner creates a flameless, radiant heat source with extremely low emissions that exceed the world's most stringent environmental emission regulations.
• An integrated stainless steel plate heat exchanger produces domestic hot water instantly, efficiently, and at even temperatures.
• The integrated control unit of the Viessmann Vitodens 200 boiler is not only easy to use, but also thinks along - be it long-term, when resetting to daylight savings time, or short-term, as outdoor reset control, when responding automatically to outdoor temperature fluctuations. With the Vitodens control unit you've got everything under control - even from your living room, when using one of the remote control options available.
• High-alloy stainless steel (SA240 316 Ti) Viessmann Inox-Radial heat exchanger constructed in compliance with CSA B51 and ASME Section IV. Max. pressure rating: 45 psig.
• Exceptionally space-efficient since service clearances to the side are not necessary.
• Viessmann Vitodens-Compact, lightweight design. Zero clearance to combustibles. Limited space is not an issue.

Viessmann VITODENS 200,WB2B 9-35 High Efficiency Gas Boiler Other Standard Features:

• Weather responsive variable speed pump
• Vitodens control unit c/w outdoor sensor
• Power module c/w pre-wired plug-in connections
• Extremely low emissions of NOx and CO





• Parallel electrode spark surfaces for extremely long life
• Built-in condensate P-trap
• All wiring connections c/w number coded plugs
• Zero clearance to combustibles for all vent options
• Burner modulation with flue gas adaptation
• Domestic hot water priority
• Differential air pressure sensor: shuts down burner in case of vent blockage
• Boiler freeze protection
• Factory tested

Viessmann WB2B 9-35 High Efficiency Modulating Gas-Fired Boiler Qualifications:

• Energy Star Rated. Modulating boiler operation within the multi-boiler system maximizes efficiency and, most importantly, energy and cost savings
• This boiler qualifies for up to $1,500 Federal Tax Credits for Energy Efficiency! This energy tax credit covers 30% of the equipment, installation supplies, and labor costs up to $1,500.

Viessmann 6-24 High Efficiency Residential Hot Water Hot Boilers come in other sizes and capacities depending on your needs:

Viessmann WB1A Series:
• 8-24 - 80.000 Heating BTU/h, 95.1%
• 8-30 - 100.000 Heating BTU/h, 95.1%
Viessmann WB1B Series:
• 10-26 - 91.000 Heating BTU/h, 95.2%
• 10-35 - 118.000 Heating BTU/h, 95.2%
Viessmann WB2 Series:
• 6-24 - 91.000 Heating BTU/h, 95.2%
• 6-24C - 91.000 Heating BTU/h, 95.2%
• 8-32 - 124.000 Heating BTU/h, 95.2%
• 11-44 - 172.000 Heating BTU/h, 95.2%
• 15-60 - 230.000 Heating BTU/h, 95.2%
Viessmann WB2B:
• 9-19 - 67.000 Heating BTU/h, 96.1%
• 9-26 - 93.000 Heating BTU/h, 96.1%
• 9-35 - 126.000 Heating BTU/h, 96.1%
• 17-45 - 160.000 Heating BTU/h, 96.1%
• 30-80 - 285.000 Heating BTU/h, 96.1%
• 30-105 - 370.000 Heating BTU/h, 96.1%

Viessmann VITODENS 200, WB2B 9-35 Warranty:

• 2 years parts / Limited Lifetime Heat Exchanger Warranty