Temperature Control - Williams 4505621 Brochure & Specs

Model Number
Btu/hr
Input
Natural Propane
4505622 4505621
45,000
6005622 6005621
60,000
Easy Installation
NOTE: If two joists
are cut, use a
double header
Headers
FIRST FLOOR
4" VENT PIPE
(¼" RISE PER FOOT)
VENTILATION
OPENING
12"
GROUND LEVEL
DRAIN FROM
FURNACE PIT
All units have 4" flue pipe diameter and 18" floor-to-center of flue connection.
Recommended Minimum Clearances
6" between the floor furnace and adjacent walls
12" between the floor furnace and doors, draperies or other combustible materials
15" walk space along two sides of the furnace
© 2008 Williams Furnace Co.
Floor Furnace
Efficiency Percentages
Btu/hr
Output
Thermal AFUE
31,500 70.0 57.0
42,000 70.0 58.0
All units have ½" gas connection.
Floor
Floor
Joist
This space must be the same
size as the opening cut in the
floor
NOTE: The headers must not
be a smaller size lumber than
the joists
Furnace
DEPTH OF
FURNACE
12" MINIMUM
12" MINIMUM ON ALL SIDES
EXCEPT CONTROL END OF FURNACE
250 West Laurel Street · Colton, California 92324 USA
(909) 825-0993 · Fax: (909) 370-0581 or (909) 824-8009
Consumer Line: (888) 256-6465
Homeowner Assistance: (909) 426-0978
www.e-wfc.com
Printed in U.S.A.
Dimensions
Width Length Height
24"
32" 28½"
24"
42" 28½"
JOIST HEADERS
18" MINIMUM
WORK SPACE
18" MINIMUM ON
CONTROL END OF FURNACE
· Read owner's manual before using/installing.
· Photographs are representative only.
· Specify propane or natural gas when ordering.
· Check local codes and ordinances for permitted uses.
· 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.
· Please read the warranty, for any limitations or disclaimers. Combustion
chamber carries a ten-year limited warranty. All other parts carry a one-year
li.llimited warranty.
· Venting must comply with the "Venting and Chimney Requirements" section of the
...installation manual.
· Replacement floor furnaces of the same or lesser Btu/hr input rating may
be installed in the same location as the replaced furnace when
replacement does not create an unsafe condition.
All Rights Reserved Subject to Change without Notice
Floor Opening
Width Length
24¼" 32⅜"
24¼" 42⅜"
Features
Floor Register Temperature Control
Williams' floor furnaces are equipped with automatic floor
register grille temperature control. This meets the latest
American National Standards Institute Requirements. In
extreme weather conditions, this control can be overridden to
allow increased heat output.

Temperature Control

A self-generating millivolt electrical system powers a wall-
mounted heating thermostat. This provides maximum room
comfort while allowing economical automatic operation.
Accessories
High-Altitude Units
Conversion Kits
Requires
No Electricity
Great During
Power Outages
Important
L1026
Shipping
Weight (lbs.)
147
174
5/08