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Boilers

If your home has hot water radiators in each room for heat, you have a boiler to heat the water. Like a furnace, the energy efficiency of a boiler is given as the Annual Fuel Utilization Efficiency (AFUE). Boilers manufactured since 1992 must have an AFUE of at least 80%. We offer a complete line of gas and oil boilers starting at 80% AFUE and up.

A gas-fired condensing boiler is one of the most economical and clean ways to heat your home or commercial property, and it can reduce your monthly heating bills and environmental footprint. The Viessmann line of gas condensing boilers offers highly efficient and reliable residential and commercial heating solutions for your home or business.

Our comprehensive product portfolio lets you take energy savings a step further. Reduce your energy costs by integrating domestic hot water production with your boiler and manage the entire system with one of our control solutions. Or put the sun to work for you by adding a solar thermal package. With the entire system available from a single, trusted source, you don't have to compromise – total system performance and additional energy savings go hand-in-hand.

Viessmann Gas Boilers

300

Vitocrossal 300 Gas Boiler

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Model Family: 300
Annual Fuel Utilization Efficiency: Up to 95% AFUE
Energy Star Rated: ENERGY STAR Most Efficient 2016.
Heat Exchanger Warranty: 5 Year Limited Parts Warranty
Warranty: Limited 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.
222F

Vitodens 222-F Gas Boiler

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Model Family: 222F
Annual Fuel Utilization Efficiency: Up to 95% AFUE
Energy Star Rated: Exceeds Energy Star® efficiency requirements.
Heat Exchanger Warranty: 5 Year Limited Parts Warranty
Warranty: Limited lifetime warranty in residential applications
Manufacturer's Stated Benefits:
  • 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.
200W

Vitodens 200 Gas Boiler

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Model Family: 200W
Annual Fuel Utilization Efficiency: Up to 95% AFUE
Energy Star Rated: Exceeds Energy Star® efficiency requirements.
Heat Exchanger Warranty: 5 Year Limited Parts Warranty
Warranty: Limited lifetime warranty in residential applications
Manufacturer's Stated Benefits:
  • 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.
100-W

Vitodens 100-W Gas Boiler

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Model Family: 100-W
Annual Fuel Utilization Efficiency: Up to 94% AFUE
Energy Star Rated: Exceeds Energy Star® efficiency requirements.
Heat Exchanger Warranty: 5 Year Limited Parts Warranty
Warranty: Limited lifetime warranty in residential applications
Manufacturer's Stated Benefits:
  • 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.