Empire Heating Systems GWT-25 User manual

GWT-35
Gravity Wall Furnace
• State-of-the-Art Technology for Higher
Fuel Efficiency
• Common Size Retrofits Easily
• GWT-25/35 Furnace Recesses into Wall
or Mounts Flush with Optional GWTW-2
• Total Comfort for a Fraction of the Cost of
Electric Heat
• Optional Wall or Built-in Thermostats Require
No Electricity
• Heat Two Rooms with Dual Wall Unit GWT-50
• Optional Blower Available
Surround Yourself with Comfort

©Empire Comfort Systems, Inc. EHS-49 Rev. A 3/08
918 Freeburg Ave. • Belleville, IL 62220-2623
618-233-7420 • FAX [phone]
E-mail: [e-mail]
CERTIFIED
For Your Safety
Due to high temperatures, the appliance should be located out of
traffic and away from furniture and draperies.
Children and adults should be alerted to the hazard of high surface
temperature and should be kept away to avoid burns or clothing
ignition.
Installation and repair should be done by a qualified service person.
This series is design certified in accordance with American National
Standards Institute Z21.86 (latest standard) and CSA2.32-(latest
standard) by the Canadian Standards Association, as a Vented Wall
Furnace.
The installation must conform to local codes. In the absence of local
codes, the installation must conform with American National Standard
(National Fuel Gas Code) known as NFPA 54 and ANSI Z223.1 (latest
edition) available from the American National Standards Institute, Inc.,
11 West 42nd St., New York, N.Y. 10036, or from the National Fire
Protection Assoc., Batterymarch Park, Quincy, Massachusetts 02269.
Note: A vent safety switch is standard on all models, automatically
shutting off the heater in the event of a blocked flue or incorrect
installation. (Example: Attaching a 90° elbow directly to the draft
diverter is an incorrect installation.) The flue pipe diameter must be as
large as the flue collar on the draft diverter and run as directly as
possible to the chimney with a minimum of elbows. Any flue pipe
passing through walls and roof must be “B” Type vent. The chimney
must extend at least two feet above the roof and any object or
building within ten feet of the chimney.
Read your Owner's Manual for complete installation and safety information.
www.empirecomfort.com
Specifications
Gravity Wall Furnaces 25,000 to 50,000 Btu Models
GWT-50
Model GWT-25 GWT-35 Dual Wall
Color: Cabinet and Front Panel Beige Beige Beige
Btu Input 25,000 35,000 50,000 (Total)
25,000 (Each Room)
Overall Dimensions (unit mounts between standard stud spacing)
Width Casing 16" 16" 16"
Depth Casing 6" 6" 6"
Height 66
1/8" 66 1/8" 66 1/8"
Height with Optional Blower Kit 71 7/8" 71 7/8" 71 7/8"
Shipping Weight, Lbs. (One Carton) 86 86 133
Accessories (State on Order)
Wireless Remote Wall Thermostat TRW TRW TRW
750mv Wall Thermostat (Reed Switch) TMV TMV TMV
750mv Wall Thermostat GWSG-T GWSG-T GWSG-T
Remote Bulb Thermostat GWRB-T GWRB-T GWRB-T
Blower Kit GWTB-2 GWTB-2 GWTB-2†
Output, Cu. Ft./Min. 75 75 75
Rear Register Kit GWTR-1 GWTR-1 N/A
Out-of-the-Wall Installation Kit GWTW-2** GWTW-2** N/A
Minimum Clearance to Combustibles from:
Top 12" 12" 12"
Each Side 4" 4" 4"
Bottom of Unit to Floor Covering 11/2" 11/2"1
1/2"
Gas Inlet
Type of Gas (State on Order) Natural or LP Natural or LP Natural or LP
Iron Pipe Size (N.P.T.) 1/2"1/2"1/2"
Venting
Size of Flue Collar (Type B) 4" Oval 4" Oval 4" Oval
Safety Control
Pilot and Main Burners Include Automatic Shutoff
Warranty
Combustion chamber carries a 10-year limited warranty.
All other parts carry a 1-year limited warranty.
† One blower may be purchased for each side.
** When the GWTW-2 Out-of-the-Wall kit is used,
the GWTR-1 Rear Register kit cannot be used.
GWSG-T
Wall
Thermostat
GWRB-T
Remote Bulb
Thermostat
115 VOLT OUTLET
BOX FOR OPTIONAL
HARDWIRING OF
OPTIONAL BLOWER
HEADER PLATE
BOTTOM OF
HEADER
NAILING
FLANGE
B-VENT WITH
BW ADAPTER*
GASKET FOR
HEADER
ASSEMBLY
BASE PLATE
HEADER
PLATE
2 x 4
STUDS
2 x 4 FLOOR PLATE
2 x 4 FLOOR PLATE
66 1
/8"
WALL
OPENING
62 1
/4"
14 1
/2"
INSIDE
Header is provided with furnace. However, if it is desired
to finish wall before furnace is delivered, the header may
be ordered and installed prior to delivery of furnace.
Note: Construction deeper than standard (2x4 stud) may
create installation problem. Contact Empire for
additional information. GWT-50 will not work on walls
with deeper than 2x4 construction.
* Purchase Locally
Note: Empire has a policy of constantly improving quality
and performance of its appliances, therefore, materials and
specifications are subject to change without notice.
Note: Units do not come with thermostats.
Inshot Burner &
Tubular Heat Exchanger
GWTB-2 Blower
*