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Actual product may vary from photos.
The Williams 3509622 (Item No. 612419) has been discontinued.
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This Williams 3509622 35,000 BTU Top-Vent Furnace, 74% Efficiency, Natural Gas / LP, Top Air Outlet, No Electricity Required has some cosmetic damage incurred during shipping (dented front panel). For detailed photos please click 'See Additional Images' above. This Williams 3509622 35,000 BTU Top-Vent Furnace, 74% Efficiency, Natural Gas / LP, Top Air Outlet, No Electricity Required meets the full manufacturer's specifications, comes with the full manufacturer's warranty, and includes Alpine's premium guarantee.

For product specs and photographs of product in its original condition, click here.

Select from the leader in combining high-efficiency home comfort with lower heating costs. Easy recessed or surface-mounted installation in homes, schools, cabins, apartments, offices and shops. Great during power outages, no electricity required. No need to purchase a thermostat, as these units are equiped with a self-generating millivolt thermostat that may be wall-mounted or cabinet-mounted. All models feature resettable vent-limit safety switch as standard equipment. Patented, side-relief vent design reduces flue gas temperatures and also reduces operating costs. It is top vented and equipped with an automatic thermostat, safety controls, "matchless" pilot igniter and long-life ceramic-coated combustion chamber.

Unit comes from factory set up for natural gas. In order to operate on LP (liquid propane), the Williams 8902 LP Conversion Kit must be purchased seperately.

Important Safety Notice:  The surface temperature of wall furnaces can exceed 200 degrees Fahrenheit. Avoid touching the furnace while it is in use. If children will be present, provide a physical barrier to prevent accidental contact with the furnace. Please read this additional Important Safety Notice.

Standard Features

  • Durable, ceramic-coated combustion chamber increases efficiency.
  • No electricity required ... great during power outages.
  • Exclusive, patented design for higher efficiency.
  • Automatic temperature and safety controls. Thermostat may be mounted on the wall or on the furnace cabinet. Included with all models.

Heating Capacity

The amount of heat, rated in BTUs that the item can produce.

Heating Capacity
35,000 BTU
Effective Heating Capacity (BTUs)
23,700
Efficiency
68 %
Efficiency (% AFUE)

The percentage of energy converted into output by the unit. The remaining percentage is lost during the conversion process. The higher the efficiency, the lower the operational cost.

Efficiency (% AFUE)
66 %
Electrical Requirement
None
Fuel Type
Liquid Propane Convertible / Natural Gas
Ignition Type
Matchless Pilot
Exhaust Venting
Top-Vent
Product Weight
83 lbs
Meets CSA Standards

Canadian Standards Association

Meets CSA Standards
Yes
Meets Canadian OEE Standards

Standards established by Canada's Office of Energy Efficiency.

Meets Canadian OEE Standards
No
Width
16 Inches
Depth
6 Inches
Height
65 3/4 Inches
Heat Exchanger Warranty
10 Years
Parts Warranty
1 Years

In 2002 Alpine Home Air Products became the first company to sell heating, air conditioning and indoor air-quality products online. We have proudly served hundreds of thousands of customers, helping them save time and money by buying their products direct.