VITODENS 100-W Gas Condensing Boilers

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The Viessmann Vitodens 100-W is a gas-fired wall-mounted condensing boiler equipped with a Viessmann stainless steel radial heat exchanger for lasting performance and reliability. This new generation of the popular Vitodens 100 boilers now offers even greater versatility and choice and is the perfect combination of value and quality. Rated inputs from 37,000 to 118,000 Btu/h (10.8 to 34.6 kW).

Features at a glance:

• Outstanding efficiency of 90.0%† AFUE on all models.
  
  
• On demand domestic hot water just by adding the CombiPLUS kit.
  
  
• Lasting performance with Viessmann-made stainless steel and titanium alloy Inox-Radial heat exchanger.
  
  
• Low-emission combustion with Viessmann's own fully modulating stainless steel MatriX cylinder burner for natural gas or propane. Factory calibration eliminates the need for adjustments in the field.
  
  
• Integrated boiler control interfaces with any level of third-party control, from a room thermostat to outdoor reset and more.
  
  
• Greater venting flexibility with increased vent length up to 200 ft (61 m) and multiple venting options;
  • Horizontal or vertical sealed combustion coaxial vent system (factory supplied).
  • Horizontal, vertical or hybrid sealed combustion double-pipe vent system (field supplied).
  • Horizontal or vertical single-wall vent system (field supplied).
  • Flexible pipe venting system.
  
  
  

  Viessmann MatriX Combustor

• Easy installation, service and maintenance with all pipe connections located at the bottom and serviceable components easily accessible from the front.
  
  
• A compact, lightweight design with approved zero clearance to combustibles make it a great choice for limited space installations.
  
  
• Extremely quiet operation and in fact, quieter than most refrigerators.
  
  
• Built-in automatic frost protection shuts off the boiler for an extended period of time while protecting it against freeze-up.
  
  
• The heat exchanger carries a limited lifetime warranty for residential applications.

Series Specifications:

Model	WB1B - 26	WB1B - 35
AFUE	90.0%†
Rated CSA Input (Min to Max)	37,000 to 91,000 Btu/h	37,000 to 118,000 Btu/h
CSA/DOE Rated Output (Min to Max)	34,000 to 83,000 Btu/h	34,000 to 108,000 Btu/h
Net (I=B=R) Rated Output	72,000 Btu/h	94,000 Btu/h
ENERGY STAR® Qualified Unit	Yes
Fuel	Natural gas, LPG

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The new Viessmann CombiPLUS kit adds on-demand domestic hot water (DHW) to your new Vitodens 100-W space heating boiler without the need for a water tank. Say goodbye to your DHW tank and enjoy hot water at the snap of your fingers all day long with an outstanding flow rate of up to 3.6 gpm (13.6 l/m) with the added cost savings that the on-demand indirect-fired design provides.

Slightly bigger than a large shoe box, the CombiPLUS kit installs underneath or beside the Viessmann Vitodens 100-W boiler and requires only minimal piping and electrical connections. Equipped with a stainless steel heat exchanger, built-in sensor, 3-speed pump and a 3-way diverting valve, you'll get nothing but reliable, high-quality hot water day after day.

Features at a glance:

• Endless hot water at the taps all day long.
  
  
• Energy efficient and low cost due to on-demand indirect-fired DHW production.
  
  
• Reduced energy waste with fully modulating input from boiler.
  
  
  

  Viessmann CombiPLUS Kit Cross-Section

• Space saving and lightweight wall-mount design. More compact than any other hot water heater on the market.
  
  
• Virtually silent DHW production.
  
  
• Quality you can count on! Stainless steel heat exchanger, built-in pressure bypass, and 150 psig working pressure rating.
  
  
• Reliable and even DHW supply with built-in water temperature and flow sensors.
  
  
• Complete space and DHW heating management through the boiler controls using powerful built-in 3-speed pump and diverting valve.
  
  
• Perfect for apartments, condos, cottages, single-family homes, or anywhere where space is at a premium.

Series Specifications:

Model	WB1B - 26 CombiPLUS	WB1B - 35 CombiPLUS
AFUE	90.0%†
DHW Supply Temperature	140 °F (60 °C)
Continuous DHW Flow Rate at 63 °F (34 °C) ΔT	2.6 gpm (10.0 l/m)	3.6 gpm (13.6 l/m)
ENERGY STAR Qualified Unit	Yes

VITODENS 200-W Gas Condensing Combi-Boilers

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The Viessmann Vitodens 200-W a compact, high-quality and reliable wall-mounted condensing boiler. The newly developed Inox-Radial heat exchanger surface of stainless steel-titanium alloy and the modulating MatriX compact gas burner make for maximum energy usage with minimum emissions and small space requirements. All Vitodens 200-W boilers are equipped with Lambda Pro controls and are ready for biogas operation, an industry first! Rated input: 25,000 to 230,000 Btu/h (7.0 to 67.0 kW)

Features at a glance:

• High efficiency condensing operation: AFUE up to 90.0%†.
  
  
• Quieter than most refrigerators! Quiet operation, small size and sealed combustion means the Vitodens 200-W can be installed discretely in living spaces.
  
  
  

  Viessmann Vitodens 200-W Installed

• Reliable domestic hot water (DHW) production by combining the system with a Viessmann Vitocell hot water tank (The Viessmann CombiPLUS kit is not compatible with the Vitodens 200-W).
  
  
• Maximum reliability with a stainless steel and titanium alloy Inox-Radial heat exchanger with defined gaps between coils produces efficient heat transfer and a long service life.
  
  
• Low electrical consumption with variable speed DC blowers installed on all models and a variable speed heat circuit pump on some models.
  
  
• Compact, lightweight design with approved zero clearance to combustibles installation. Limited space is not an issue.
  
  
• Reduced maintenance with the Lambda Pro intelligent combustion management system. The Lambda Pro automatically adjusts to the gas type and quality, thus no fuel conversion kits are necessary. Works with natural gas, propane and even biogas!
  
  
  

  Viessmann Vitotronic Controller

• Balanced flue design with self-regulating gas burner and self-calibrating combustion for easy start-up and ongoing reliable operation.
  
  
• Modulating MatriX-compact gas burner offers extremely low emission levels of NOx and CO which meet or exceed all international clean air regulations and guidelines (NOx: 8.9 ppm, CO: 5.5 ppm).
  
  
• Built-in programmable indoor/outdoor Vitotronic control system on each boiler provides efficient and personalized control for space heating and domestic hot water heating needs.

Series Specifications:

Model	WB2B - 19	WB2B - 26	WB2B - 35	WB2B - 45	WB2B - 60	WB2B - 80	WB2B - 105
AFUE	90.0%†
Rated CSA Input (Min to Max)	31,000 to 67,000 Btu/h	31,000 to 93,000 Btu/h	31,000 to 125,000 Btu/h	60,000 to 160,000 Btu/h	60,000 to 212,000 Btu/h	104,000 to 285,000 Btu/h	104,000 to 370,000 Btu/h
CSA/DOE Rated Output (Min to Max)	28,000 to 61,000 Btu/h	28,000 to 85,000 Btu/h	28,000 to 114,000 Btu/h	55,000 to 146,000 Btu/h	55,000 to 194,000 Btu/h	95,000 to 260,000 Btu/h	98,000 to 350,000 Btu/h
Net (I=B=R) Rated Output	53,000 Btu/h	74,000 Btu/h	99,000 Btu/h	127,000 Btu/h	169,000 Btu/h	226,000 Btu/h	304,000 Btu/h
ENERGY STAR Qualified Unit	Yes
Fuel	Natural gas, LPG

†The AFUE ratings have been reduced to 90.0% pending AHRI's determination whether corrected testing procedures are necessary. For more information please see AHRI's press release.