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New Reduced price! Williams - High-Efficiency Direct-Vent - 17,700 BTU - NG - 81% AFUE - Single-Stag View larger
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Williams - High-Efficiency Direct-Vent - 17,700 BTU - NG - 81% AFUE - Single-Stag


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Data sheet

Width 21.75
Height 28.12
Depth 8.25

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Space-Saving Size The High-Efficiency model is a low-profile furnace that can fit in just about any space. Having a unique wall mount design, this furnace requires no floor space.

Electric Ignition It can be a hassle to light a pilot with a match. More importantly, it can also be dangerous. This is why the Williams 1773511 uses an electric ignition, to make lighting your furnace as easy as possible.

Sealed Combustion Rather than using indoor air to fuel combustion, the Williams 1773511 pulls intake air directly from the outdoors. This means the heat your furnace generates isn't fed back into the system, maximizing efficiency.

Year Round Comfort A two-speed recirculating fan takes cool air off the ground and recirculates it back in to the room.

Programmable Timer The High-Efficiency Direct-Vent furnaces comes standard with a programmable thermostat which allows for precise operating and timing control.

Easy Installation The Williams Direct Vent furnace mounts directly on the outside-facing wall. Venting is accomplished through a single 9"" opening to the outdoors and vent materials that will accommodate most installations are included.

Product Includes Williams High-Efficiency NG Direct-Vent Furnace All Vent Materials Needed for a 9"" Thick Wall

  • Type Gas Wall Furnace
  • Product Line High-Efficiency Direct-Vent
  • Fuel Type NG
  • Vent Type Direct Vent
  • Mount Type Wall
  • Color White
  • Performance
  • Nominal Heating Capacity 17700 BTU
  • High Fire Input 17700 BTU
  • Low Fire Output 14514 BTU
  • AFUE 81 %
  • Electrical Data
  • Voltage 115 Volts
  • Phase 1
  • Frequency 60 Hz
  • Dimensions
  • Gas Connection Size 0.5 Inches
  • Product Height 28.12 Inches
  • Product Width 21.75 Inches
  • Product Depth 8.25 Inches
  • Product Weight 52 Pounds
  • Certifications
  • CSA Listed Yes
  • Warranty Information
  • Parts Warranty 1 Year
  • Heat Exchanger Warranty Limited 10 Years


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Williams - High-Efficiency Direct-Vent - 17,700 BTU - NG - 81% AFUE - Single-Stag

Williams - High-Efficiency Direct-Vent - 17,700 BTU - NG - 81% AFUE - Single-Stag