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Williams 4007731 Forsaire Counterflow Wall Furnace - 40,000 btu - Standing Pilot - Propane

Part Number: 4007731
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Williams 4007731 Forsaire Counterflow Wall Furnace - 40,000 btu - Standing Pilot - Propane
Williams Forsaire Counterflow Wall Furnace
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In Stock, except where otherwise noted in product details
Option Choices & Shipping Information
Delivery Type - Please Select One
Truck Delivery - Commercial Location [+$114.95]
Truck Delivery - Residential Location [+$179.95]
Canadian Shipment - Please Call for Price Quotation
Alaska/Hawaii - Please call for shipping costs
Delivery Adders - Please note: Liftgate Service and/or Inside Delivery is NOT included in standard truck delivery. Liftgate Required [+$70.00]
Inside Delivery Required (Garage, Shed, etc. - Does not include delivery within a residence) [+$100.00]


Williams Forsaire Direct-Vent Counterflow Wall Furnace


Available in 40000, 55000 & 60000 Btu/H Input Designs 


Available In Natural Gas or Propane (LP)


The forced-air circulation comfort heating system uses only outside air for combustion, as the burners are completely sealed within the combustion chamber. Having a sealed combustion chamber, our Direct-Vent Counterflow Furnaces use only outside air for combustion. All by-products of combustion are discharged to the outside through the wall vent. All venting materials are included with these models. This eliminates the expense of a vent. All vent caps include a built-in “Bird Guard.” All vent materials are included. Ideal for garages, cottages, workshops (low dust/non-volatile fumes) or anywhere where a standalone heater might be desirable.



Design Features

  • Freestanding or recessed, Forsaire furnaces are ideal for homes, apartments, offices, schools, cabins and many other applications

  • Counterflow blower system circulates ceiling-to-floor warm air

  • “Matchless” pilot igniter

  • Multi-room heating with optional outlet accessories to heat up to three rooms

  • Automatic temperature and safety controls

  • Integral blower

  • Natural or propane models

  • Resettable vent-limit safety switch

  • Equipped with a 4' electrical power cord

  • Thermostats sold separately

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