Boilers

If your home has hot water radiators in each room for heat, you have a boiler to heat the water. Viessmann offers tailor-made system solutions for all energy sources for use in residential homes and apartment buildings. We offer a complete line of gas and oil boilers starting at 86.9% AFUE and up.

Gas Boiler Product Offering

Feature Comparison
Gas Boiler Product Offering
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Gas Boiler Product Offering
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Gas Boiler Product Offering
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Gas Boiler Product Offering
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Product NameVitocrossal 300 Gas BoilerVitodens 222-F Gas BoilerVitodens 200 Gas Boiler Vitodens 100-W Gas Boiler
Model Family300222F200W100-W
Annual Fuel Utilization EfficiencyUp to 95% AFUEUp to 95% AFUEUp to 95% AFUEUp to 94% AFUE
Energy Star RatedENERGY STAR Most Efficient 2016.Exceeds Energy Star® efficiency requirements.Exceeds Energy Star® efficiency requirements.Exceeds Energy Star® efficiency requirements.
Heat Exchanger Warranty5 Year Limited Parts Warranty5 Year Limited Parts Warranty5 Year Limited Parts Warranty5 Year Limited Parts Warranty
WarrantyLimited lifetime warranty in residential applicationsLimited lifetime warranty in residential applicationsLimited lifetime warranty in residential applicationsLimited lifetime warranty in residential applications
Manufacturer's Stated Benefits
  • Compact, floor-standing gas condensing boiler from 19-199 MBH.
  • High temperature operation of up to 90°C (194°F).
  • Vitocrossal Pocket Design with wide water passage ways allow for system/full flow applications
  • No dedicated boiler pump required and eliminates primary/secondary piping.
  • MatriX dome gas burner with 5:1 turndown ratio to ensure high efficiency and extremely clean combustion.
  • High water volume extends burner run time and reduces cycling.
  • A self-calibrating Lambda Pro combustion management system ensures optimal combustion efficiency at all times regardless of gas/
  • Durable, reliable, and long service life with Inox-Crossal stainless steel heat exchanger and high mass design.
  • Multiple venting options and configurations with vent lengths up to 198 ft.
  • Space-saving design with small footprint and zero side clearance to combustibles
  • Low emission combustion and continuous efficiency from Viessmann stainless steel MatriX cylinder burner with Lambda Pro combusti
  • Wide modulation range up to 6.5:1 to precisely match load conditions.
  • Fast heat-up with innovative DHW Storage Tank Loading System comprised of plate heat exchanger, DHW loading pump and storage tan
  • Multiple venting options with vent length up to 180 ft.
  • Additional DHW tank(s) required, for a high level of DHW convenience
  • Best value in its class with new industry-leading technology and the most standard features
  • Low-emission combustion for environmentally-friendly operation.
  • Intelligent Lambda Pro gas management system automatically adjusts to different gas qualities for optimum efficiency and perform
  • Modulation ratio up to 6.5:1 ensures extremely high efficiency.
  • Multiple venting options and greater venting flexibility with vent length up to 180 ft.
  • Compact, lightweight design and zero clearance to combustibles.
  • Extremely quiet operation; quieter than most refrigerators.
  • On-demand DHW available via CombiPLUS Kit (up to 3.6 GPM)
  • Compact, lightweight wall-mount design and zero clearance to combustibles
  • Fits any home and budget with high performance at an attractive price.
  • Low-emission combustion with fully-modulating Viessmann stainless steel MatriX cylinder burner for natural gas
  • Extremely quiet operation; quieter than most refrigerators.
  • Easy expansion with CombiPLUS Kit for energy-saving, on-demand DHW.

Oil Boiler Product Offering

Feature Comparison
Oil Boiler Product Offering
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Product NameVitorond 100 Oil Boiler
Model FamilyV100
Annual Fuel Utilization EfficiencyUp to 86.9% AFUE
Energy Star RatedEnergy Star qualified
Heat Exchanger Warranty
Warranty20 Year Limited Warranty
Manufacturer's Stated Benefits
  • Maximum heat extraction and efficiency thanks to the triple-pass heat exchanger.
  • Long service life and maximum reliability with extremely durable cast iron heat exchanger.
  • Clean and efficient combustion thanks to the stainless steel combustion chamber insert.
  • Quiet combustion with Beckett or Riello burner.
  • For greater efficiency and comfort, modulate the boiler water temperature with a Vitotronic control.
  • Eliminate the need for a chimney and combustion air supply opening with the direct vent option (up to VR1-33).
  • Low maintenance cost with service-friendly burner and easy-to-clean flue gas passageways.