Model # 3003622

Internet #100084617

Store SKU #584160

Store SO SKU #1000092002

null 30,000 BTU/Hr Direct-Vent Furnace Natural Gas Heater with Wall or Cabinet-Mounted Thermostat
0093909000493

30,000 BTU/Hr Direct-Vent Furnace Natural Gas Heater with Wall or Cabinet-Mounted Thermostat

  • Thermostat may be mounted on the wall or on the furnace cabinet
  • Heavy-duty cast-iron burner requires no electricity for operation
  • Matchless pilot igniter for safe use
$73874 /each
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Product Overview

  • Thermostat may be mounted on the wall or on the furnace cabinet
  • Heavy-duty cast-iron burner requires no electricity for operation
  • Matchless pilot igniter for safe use
The Williams Furnace Co. 30,000 BTU Natural Gas Direct-Vent Garage Wall Furnace will continue to produce heat during a power outage as it requires no electricity to operate. This wall furnace is ideal for garages and workshops as it features a sealed combustion chamber which uses no room air for operation.
  • 30,000 BTUs for powerful heating
  • Converts to propane with the optional conversion kit (not included) so you can choose the fuel type that fits your needs
  • Durable ceramic-coated combustion chamber for increased efficiency
  • Rated for elevations up to 4,500 ft.
  • Vent cap equipped with built-in bird guard
  • Attractive, soft-white finish
  • Heavy-duty, cast-iron burner
  • Sealed combustion uses no room air for operation
  • Great for use in garages
  • Pick the best air filters for your home. Check out our Buying Guide for helpful tips.

Product Overview

  • Thermostat may be mounted on the wall or on the furnace cabinet
  • Heavy-duty cast-iron burner requires no electricity for operation
  • Matchless pilot igniter for safe use
Model #: 3003622
Sku #: 584160
Internet #: 100084617

The Williams Furnace Co. 30,000 BTU Natural Gas Direct-Vent Garage Wall Furnace will continue to produce heat during a power outage as it requires no electricity to operate. This wall furnace is ideal for garages and workshops as it features a sealed combustion chamber which uses no room air for operation.

  • 30,000 BTUs for powerful heating
  • Converts to propane with the optional conversion kit (not included) so you can choose the fuel type that fits your needs
  • Durable ceramic-coated combustion chamber for increased efficiency
  • Rated for elevations up to 4,500 ft.
  • Vent cap equipped with built-in bird guard
  • Attractive, soft-white finish
  • Heavy-duty, cast-iron burner
  • Sealed combustion uses no room air for operation
  • Great for use in garages
  • Pick the best air filters for your home. Check out our Buying Guide for helpful tips.

Info & Guides

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Specifications

Dimensions

Product Depth (in.)
10.25
Product Height (in.)
28
Product Width (in.)
32.125

Details

Accessories Included
No
Automatic shutoff
Yes
Color
Soft-White
Color Family
Whites
Fuel Gauge
No
Fuel Type
Gas
Heat rating (BTU/hour)
30000
Heater Controls
Thermostat
Heater Type
Other
Heating Product Type
Gas Wall Heater
Heating Technology Type
Convection
Ignition Type
Pilot
Indoor/Outdoor
Indoor
Installation
Recessed/Surface Mounted
Number of Heat Settings
Variable
Power/Fuel Type
Natural Gas
Product Weight (lb.)
100lb
Remote Control
No
Returnable
90-Day
Room Size (sq. ft.)
Greater than 900
Thermostat
Yes
Timer Included
No
Vented
Yes

Warranty / Certifications

Certifications and Listings
CSA Listed
Manufacturer Warranty
Refer to Williams' Limited Warranty for warranty information

Specifications

Dimensions

Product Depth (in.)
10.25
Product Height (in.)
28
Product Width (in.)
32.125

Details

Accessories Included
No
Automatic shutoff
Yes
Color
Soft-White
Color Family
Whites
Fuel Gauge
No
Fuel Type
Gas
Heat rating (BTU/hour)
30000
Heater Controls
Thermostat
Heater Type
Other
Heating Product Type
Gas Wall Heater
Heating Technology Type
Convection
Ignition Type
Pilot
Indoor/Outdoor
Indoor
Installation
Recessed/Surface Mounted
Number of Heat Settings
Variable
Power/Fuel Type
Natural Gas
Product Weight (lb.)
100lb
Remote Control
No
Returnable
90-Day
Room Size (sq. ft.)
Greater than 900
Thermostat
Yes
Timer Included
No
Vented
Yes

Warranty / Certifications

Certifications and Listings
CSA Listed
Manufacturer Warranty
Refer to Williams' Limited Warranty for warranty information

Questions & Answers

What does elevation have to do with it?

The description says the unit is good up to 4500' elevation. Is this because of expected temperatures above that elevation or does it have to do with the amount of oxygen in the air? I live at 5600' in SE Arizona. Is there a different model that would work better here?
Asked by: Stoderlele
This has to do with the concentration of oxygen within the atmosphere at that elevation. The appliance needs lots of oxygen to burn the gas properly. The higher the elevation the less oxygen there is in the atmosphere. In order for the gas appliance burn cleanly and safely the engineers design it to burn at a certain minimum oxygen concentration. Above that there is just not enough oxygen in the air to support the flame properly resulting in CO formation and possible contamination. CO is a deadly gas for humans. Also, without enough oxygen for the appliance, it will create soot and clog itself.
Answered by: PaulC
Date published: 2017-06-26

Can it be mounted on an upper wall near the ceiling?

Can it be mounted on an upper wall near the ceiling?
Asked by: Danny
This unit must be mounted on an exterior wall. It is vented directly out the back of the unit. 99.999% of the time it is mounter on the floor or very near the floor. Hot air rises and cold air falls. The manufacturer requires 24" of clearance between the top of the cabinet and ceiling. No other specifications are found. Happy Heating.
Answered by: pcl
Date published: 2017-10-04

Are there vents on the sides Can the side vents be blocked off if a blower is being used

Are there vents on the sides Can the side vents be blocked off if a blower is being used
Asked by: Neoc
There are no openings of the sides of this cabinet. The top front and top are louvered.
Answered by: pcl
Date published: 2017-10-04

can I use a nest programmable thermostat

can I use a nest programmable thermostat
Asked by: rt
Yes this unit will work with any of the new electronic, remote access thermostats.
Answered by: PaulC
Date published: 2017-09-15
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Customer Reviews

30,000 BTU/Hr Direct-Vent Furnace Natural Gas Heater with Wall or Cabinet-Mounted Thermostat is rated 4.4 out of 5 by 137.
Rated 5 out of 5 by from Very Nice Heater, Excellent Value I bought this heater to heat my back porch. The area I needed to heat is about 15X10, no heat run and many drafts. The heater does an excellent job of heating the area. The packaging was not the best but I escaped with no damaged parts. Installation was a little challenging but that is probably because I am not a heating and cooling person. All in all I would recommend this heater to anyone who wants to heat a good sized space that a space heater just will not keep up with. I added a programmable thermostat to knock the heat down at night and during the day when we are not around. The price is fair for what this heater is capable of...
Date published: 2007-02-20
Rated 3 out of 5 by from Not much heat from it. I bought it because several reviews said they heat 900 sq ft with it. I ca... Not much heat from it. I bought it because several reviews said they heat 900 sq ft with it. I cannot heat my 800 sq ft even with the added on blower. I've used it 2 years now--winter in Los Angeles which is not too cold. It still works. It fits in the place I need it too but it doesn't heat the room enough to make a difference.
Date published: 2017-06-26
Rated 1 out of 5 by from Bought it and no one would install it. Finally... Bought it and no one would install it. Finally found someone. Paid about $500 to install. It's never worked....and no one at HD can help. I'll have to pay someone to unhook it so I can return. Buy from someone who will install it as well
Date published: 2017-04-25
Rated 4 out of 5 by from Won't really use this until early winter. Install was fairly... Won't really use this until early winter. Install was fairly easy, but missing a part to hang the case over the the heater brackets. Made my own hanger & life is good.
Date published: 2017-08-22
Rated 5 out of 5 by from A-ok so far I ordered a Williams 30,000 BTU wall heater from Home Depot. I had it delivered for an additional $99. It arrived a few days before the estimated delivery date. It was delivered while I was at work, to my covered front porch. The heater was in perfect condition after taking it out of the box. I had it professionally installed and it works great so far. I purchased it for backup heat encase of a power outage so it’s not been used very much. I have a small 1000 square foot house and it heated it very well when I tested it. It comes with its own thermostat which is nice so it will start up by itself if no one is home.
Date published: 2014-11-19
Rated 5 out of 5 by from Easy to install and works great After working in my shop for 6 years with a portable propane heater I finally decided to invest in the wall furnace. It works great so far in my 600sq/ft shop; had it installed for a few days now. Provides a nice even heat and is very quiet. The thermostat works okay when mounted on the cabinet. The cabinet gets warm and so the heater clicks off and on frequently if you have it set low. The furnace comes with every thing you need to get it installed to the wall and vented. However, the screws provided were not good; too short and flat heads instead of phillips or square drive. All in all, I'm happy and the Home Depot price and shipping was good.
Date published: 2012-03-21
Rated 5 out of 5 by from Furnace shipped was model 3003822 which is apparently an updated version of the model 3003622 ad... Furnace shipped was model 3003822 which is apparently an updated version of the model 3003622 advertised. That was okay but the conversion kit number 221783 to modify it from natural gas to propane was for the advertised model and would not work for the furnace shipped. I procured the correct kit from another source since Home depot does not carry the correct kit. I returned the incorrect kit without problem. The furnace is now installed and works perfectly. A very easy installation after the trauma of the wrong conversion kit.
Date published: 2016-12-06
Rated 5 out of 5 by from Fully satisfied so far. After a lot of research for an electric-free vented gas heater (not satisfied with a vent-free), I chose this Williams product. Good packaging, instructions, and quality. I chose the in-store pickup option to save on shipping, which made it the best price I could find. I hired my heating guy to make the final connection for safety's sake, but the rest I did alone. Testing it now by heating about 1,200 feet of my ranch style house with no blower, and even at -5 temps the house ranged from 58 to 73. Having decent insulation and home-made window insulation panels surely helps. Fully satisfied so far.
Date published: 2015-01-09
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