Free Shipping on Orders Over $200*
  • Williams Programmable Direct Vent Gas Wall Heater - Natural Gas - 2903512

    - 29,000 Btu - Color Almond

    Product ID • 290351200000

  • This Product is no longer available through It has either been discontinued, made obsolete, or is no longer available for sale. Please select another product.


Williams Gas Heater 29035 Series Gas Wall Heaters are all Direct Vent and Sealed Combustion Gas Space Heaters. It provides clean and safe heat for your home. Williams 2903512 gas heaters uses outside air for combustion which is safer and can save up to 15% on your gas bill as compared to old style non direct vent gas wall heaters. With efficiency of over 80% - these Williams 2903512 Gas Wall Heaters are one of the most efficient ways to heat with gas in North America. The Williams 29035 Series Heater is a larger version of the 17735 Series.

Williams Gas Heater 29035 is rated for 2000 feet and can be de-rated for up to 5500 feet in elevation.

Williams Gas Heater 29035 Series gas heater are an economical heating solution and because it is a ductless heating system there's no cycle or duct heat loss. That 82% is pure heat! Ideal for supporting existing, insufficient heating system or for rooms without heating equipment. The flue terminal lies flush with the wall and extends only 1-1/8 inches, the smallest vent and easiest installation in the industry.

Williams Gas Heater 29035 Series gas wall heaters gain their efficiency and versatility by being Gas Fired Forced Draft Heaters. These heaters operate by forcing outside air through the intake pipe and heating it inside the unit. “Whispersmooth” fans then quietly radiate the heat throughout the room. Combustion takes place in an airtight, sealed chamber which is completely isolated from the room, providing total safety. And because the combustion is gas fired, these heaters provide a greater economy than electric heaters. Combustion exhaust is then safely discharged to the outside through the same vent as the intake. The Unique Humidification System allows you to add water so you can keep moisture in winter's dry air.

Note to our Vermont Customers: Williams Heaters are non-stock items and are not available for pick-up at our Waitsfield Location.  The only option for delivery is LTL Truck direct shipment to your residence.

Return Policy | Shipping Policy

Manuals & Docs

Technical Specs

Williams Gas Wall Heaters 29035 Series Specs

  • Input Rating
    29,000 BTU
  • Output Rating
    23,817 BTU
  • Thermal Efficiency
  • Max Air Flow
    265 CFM
  • Programmable Timer
  • Humidification System
  • Inlet Pipe Diameter
    3 7/8 inch
  • Exhaust Pipe Diameter
    2 3/8 inch
  • Maximum Wall Thickness
    19 5/8 inch
  • Minimum Wall Thickness
    5 7/8 inch
  • Wall Hole Diameter
    2 inch
  • Weight
    93 lbs
  • Length
    39 3/8 inch
  • Height
    28 1/8 inch
  • Depth
    8 1/4 inch
  • Gas Connection
    1/2 inch NPT
  • Maximum Wall Thickness
    19 5/8 inch
  • Minimum Wall Thickness
    5 7/8 inch
  • Noise Level at 10 ft

Info & Links