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35,000 BTU Console Heater, 71% Efficiency, Natural Gas, Glass Front "Fireplace Look"

35,000 BTU Console Heater, 71% Efficiency, Natural Gas, Glass Front "Fireplace Look"

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Model: Williams 3502522A (Item No. 662546)

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Model: Williams 3502522A (Item No. 662546)

You save: 10%
Compare to: $969.00
Or as low as
In Stock and Ready to Ship
If ordered by 1PM CST M-F, ships same day. All items on your order must be in stock for same-day shipping.

To use LP fuel, this unit requires an LP Conversion Kit. See Accessories

This Williams 35,000 BTU Console Heater, 71% AFUE 3502522A has some cosmetic damage incurred during shipping.  This unit has moderate denting on the topside. For detailed photos please click 'See Additional Images' above. This Williams 35,000 BTU Console Heater, 71% AFUE 3502522A 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.

IMPORTANT: As of 2019, Williams no longer offers high-altitude models.  If you live above 2000 feet, be sure to purchase the high altitude kit listed in Accessories.  The kit contains a selection of orifices that cover elevations up to 8,000 feet.


Enjoy instant warmth plus lower heating costs with a traditional enclosed or fire-place look heater. New glass-front "fireplace-look" or enclosed vented hearth heaters provide comfort for hard-to-heat areas. Williams vented hearth heaters are designed to give you maximum efficiency, low fuel consumption and quiet operation. Unit comes from factory set up for natural gas. In order to operate on LP (liquid propane), the Williams 8946 LP Conversion Kit must be purchased seperately. Please read this Important Safety Notice.

Standard Features

  • No electricity required for heat ... great during power outages. 
  • Burners engineered for quiet ignition and maximum heat efficiency.
  • Louvered-top design and front grill for improved heat circulation.
  • Built-in draft diverter to permit close-to-wall installation.
  • Natural and propane gas models (Conversion kit available).
  • "Matchless" pilot ignitor.
  • Automatic temperature and safety controls. Thermostat may be mounted on the wall or on the furnace cabinet.

Installation Note: 

For proper venting, do not attach a 90 degree elbow directly to the draft diverter. It is recommended to attach 2 feet (.6m) of straight vent pipe before an elbow is used. Use 45 degree elbows if possible. Run flue pipe as direct as possible; using no more than two elbows. 


Please note: a thermostat does not come with this unit; you can buy the thermostat separately under part number P32662016. Alternately, any standard millivolt thermostat can be used.  


Includes Blower
0-2000 ft.
Heating Capacity
35000 BTU
Effective Heating Capacity (BTUs)
Vent Pipe Diameter
4 inches
71 %
Efficiency (% AFUE)
68 %
Electrical Requirement
Fuel Type
LP Capable (Kit Required) / Natural Gas
Ignition Type
Matchless Pilot
Front Panel
Equipment Type
Console Furnace
Exhaust Venting
Product Weight
83 lbs
25 Inches
15.37 Inches
28.87 Inches
Heat Exchanger Warranty
10 Years
Parts Warranty
1 Years

Enjoy free shipping on any accessories purchased with the Williams 3502522A (Item No. 662546).

Accessories for Console Room Heaters
Williams 2102
Blower assembly for Williams console heaters
Air Boosters
Tjernlund AS1
75 CFM Room-to-Room Ventilator, 120 VAC Hardwired
Digital Thermostats
Honeywell TH6110D1005
FocusPro 6000 Universal Programmable Thermostat - One Stage Heat One Stage Cool (Standard Screen)
Honeywell TH2110DV1008
Pro 2000 Universal Programmable Thermostat - One Stage Heat One Stage Cool
Honeywell TH1100DV1000
PRO 1000 Vertical Non-Programmable Thermostat, Heat Only
Honeywell TH5110D1006
FocusPro 5000 Universal Non-Programmable Thermostat - One Stage Heat One Stage Cool (Standard Screen)
Furnace High Altitude Adapter Kits
Williams 9A344
High Altitude Conversion kit - 2001' - 8000' for Room Console Heater 35,000 Btu/hr. Natural Gas
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