
Bring a room to life with 
Bring a room to life with 
the comfort of our 
the comfort of our 
Vent-Free Fireplaces and 
Vent-Free Fireplaces and 
Fireplace Logs
Fireplace Logs
Freestanding Vent-Free Fireplace
Our freestanding vent-free fireplaces need no 
hearth – they sit anywhere, in any room, to bring 
you hearth-felt comfort! Offered in an ivory finish.
Deluxe Vent-Free Firebox
Combine one of our vent-free fireboxes and 
fireplace log sets to enjoy all the comfort of 
flame-wrapped split oaks radiating warmth from 
your very own glowing hearth – and do it with 
99.9% heat efficiency. All this without the 
expense of a chimney.
Vent-Free Fireplaces 
& Fireplace Logs
25,000 Btu/hr
5,000-30,000 Btu/hr
Vent-Free Fireplace Logs
With our Williams’ v ent free fireplace log set, the 
exclusive cross-lighter design maintains full yellow 
flame even on low setting.
Deluxe VentFree Firebox
Build-in or frame-up one 
of our space-saving 
vent-free fireplace 
models to enrich your 
home. Vent-free 
fireboxes can be 
enhanced with your own 
mantel.
Design Features
 No electricity or venting required 
 “Matchless” pilot igniter 
 Easy installation 
 Eliminates costly firewood 
 Natural and propane gas models  
 99.9% heat efficient –
keeps all the heat in the room
 Fireplace includes natural-looking, axe-split 
log sets

Vent-Free Fireboxes & Fireplace Logs
VENT-FREE FIREBOXES
Model Number
4226
4227
VENT-FREE FIREPLACE LOGS
Model Number
Natural
Propane
2100542 2100541 
2500542 - -
3200542 - -
Minimum Fireplace Dimensions For Vent-Free Fireplace Logs are 14” depth and 16” height. 
Width requirements by model are: (2100 and 3200 Series, 26” front/22” rear).
FREESTANDING AND VENT-FREE FIREPLACES*
Model Number
Btu/hr Input
PropaneNatural
2506542.10    - - 25,000 - -
2506542.8 2506541.8 25,000 25,000
*All units include 4-log set.
Description
38” Deluxe Heat Circulating
43” Deluxe Heat Circulating
Btu/hr Input
High Setting Low Setting
Natural Propane
21,00021,000
25,000 - -
Natural Propane
15,750 
16,250
- - - -32,000 17,000
Heat
PropaneNatural
Settings
Efficiency%Dimensions
High-Low
Opening Width
15,750
99.9
99.9
Screen
Dimensions
Width Height Depth
5
38” 40
423/4”38
Heat
Settings
MANUAL
HIGH-LOW
- -
BUILT-IN
THERMOSTAT
MANUAL
HIGH-LOW
H x W x D
29” x 23
3
/4” x 357/8” x 16”High-Low 90 lbs.
38
/8”383/4”211/2”
45
3
/8”
Log
Size
21”
3
/4”
No.
Burners
1
21
No
Logs
14
18” 2 4
Fireplace
7
/8” x 161/4” 99 lbs.
Freestanding
(Ivory)
Vent-Free
/2”
424” 2
Shipping
Weight
158 lbs.
178 lbs.
Shipping
Weight
29 lbs. 
31 lbs.
30 lbs.
Shipping
Weight
Features
Features
Vent-Free Fireboxes
Williams’ full-size vent-free fireboxes are designed specifically for 
Williams’ vent-free fireplace logs. Our vent-free fireboxes feature l 
arge brick refractories for a genuine masonry look. A right-side knockout 
provides convenient gas line access. Each firebox comes with a black, 
luster-finished heat deflection canopy. An optional polished brass trim kit 
is available for deluxe models. Firebox is shipped ready to install. No other
gas log sets are to be installed in these fireboxes.
Vent-Free Fireplace Logs
Two-Burner Design Includes: Four Logs, Lava Rock, and a Placement 
Grate with a Two-Burner Design. On the low heat setting, the dancing 
rear flame provides both heat and a view of the flames. The high heat 
setting turns on the front burner so the glowing, charred wood embers 
are visible and additional heat is radiated into the room. With thermostat 
models, both flames are on for all settings.
Single-Burner Design Includes: Four Logs, Lava Rock, and a Placement 
Grate with a Single Burner.
Williams’ Vent-Free Fireplace Logs can be installed in solid-fuel burning 
masonry and factory-built fireplaces that have been properly installed 
with venting according to code. Damper may be in the closed position 
when using Williams’ Vent-Free Fireplace Logs.
Freestanding & Vent-Free Fireplace
250 West Laurel Street • Colton, CA 92324 • U.S.A. 
(909) 825-0993 • Fax: (909) 370-0581 or (909) 824-8009 
www.williamscomfortprod.com 
Homeowner Assistance: (909) 426-0978
©
2004 Williams Furnace Company    Printed in U.S.A.    All Rights Reserved    L1155 2/04
Accessories
Accessories
Polished Brass Trim Kit
Kit is complete with trim pieces and one header piece, in polished brass.
Model 4230 for 4226, Model 4231 for 4227. Shipping weight 3 lbs. 
Model 4228 for 2506542.8 and 2506541.8. Shipping weight 5 lbs.
Adjustable Canopy
The adjustable canopy easily expands from 28” to 48” to 
accommodate various masonry and wood-burning fireplaces. 
Available in black Model 4233 Shipping weight 6 lbs. and polished 
brass Model 4232 for existing fireplace when vent-free log set is 
installed. Shipping weight 6 lbs.
Oak Wall Surround
Designed for installation ease and have only four 
interlocking pieces which attach to the hearth. 
Made of solid oak and oak veneer and are ready to finish. 
Model 4229 Shipping weight 107 lbs.
Recommended Minimum 
Clearances
  Vent-Free Fireboxes
• 16” from side of wall to the fireplace 
opening
• 42” from the top of the firebox opening 
to the ceiling
• 14” noncombustible hearth extension 
in front of firebox or the fireplace log 
set base must be 5” above
 combustible flooring material
• See owner’s manual for mantel 
installation
Freestanding Vent-Free Fireplace
• 4” from rear wall
• 12” from side of wall
• 42” from top of the heater opening to
the ceiling
Vent-Free Fireplace
• 16” from side of wall
• 42” from the top of the heater opening
to the ceiling
• See owner’s manual for mantel
installation
• Read owner’s manual before using.
• Photographs are representative only.
• Check local codes and ordinances for 
permitted uses.
• Do not install the firebox in a sleeping room or 
bathroom.
• Freestanding Fireplace accepted by NFPA, 
CABO, SBCCI and BOCA building codes.
• Specify propane or natural gas when ordering. 
Units are not intended for conversion between 
fuel types.
• Consult installation manual for clearances prior 
to installation.
• We reserve the right to amend product 
specifications without notice.
• Installation and servicing recommended by a 
qualified service person.
• Use with adequate air (ventilation) only. Refer 
to owner’s manual for details.
• Please read the warranty for any limitations or 
disclaimers. All parts carry a one-year limited 
warranty.
IMPORTANT