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© 2006 A. O. Smith
A. O. Smith Water Products Company
500 Tennessee Waltz Pkwy
Ashland City, TN 37015
A Division of A. O. Smith Corporation
ACGSS02206
Sept 2006R
A. O. Smith Corporation reserves the right to make product changes
or improvements at any time without notice.
Printed in U.S.A.
A. O. Smith Water Products Company Online
www.hotwater.com
For Technical Information and
Automated Fax Service,
Phone: 800-527-1953
SUGGESTED SPECIFICATION
Water Heater(s) shall be power vent model no. _______________ as manufactured by A. O. Smith or an approved equal. Heater(s) shall be
internally glass-lined and gas-fired, equipped to burn _________ gas, and design-certified to the latest ANSI Standard by the CSA International.
Rating of _____ Gallons and an input rating of _____ BTU/HR with a recovery capacity of _____ GPH at 100° F. Waters heaters must be certi-
fied for power venting applications using standard PVC, class 160, schedule 40, ABS or CPVC vent piping. The water heater shall include a
6´ plug-in cord and provision for direct connection to standard electrical conduit. Blower shall include pressure switches which will shut down
power to the burner in case of vent system failure due to down drafts or vent blockage. Heater shall have a maximum working pressure of 150
psi, and a nominal storage tank capacity of ____ gallons with a 3/4˝ relief valve opening. Heater(s) shall also be equipped with an automatic shut
off device to shut off entire gas supply in event of excessive temperature in tank. Outer jacket shall have a baked enamel finish.
Model Units A B C D E F G H J K L M
Inches 68 57 1/4 29 5/8 25 3/8 15 4 15 5/8 16 2 1 1/2 1115/16
cm 172.7 145.4 75.2 64.5 38.1 10.2 39.7 40.6 5.1 NPT NPT 30.3
BTF-80
RECOVERY CAPACITIES
U.S. Gallons/Hrs. and Litres/Hr. at TEMPERATURE RISE INDICATED
Input Approx. Capacity F° 30F° 40F° 50F° 60F° 70F° 80F° 90F° 100F° 110F° 120F° 130F° 140F°
Model Btuh KW U.S. Gals. Litres C° 17C° 22C° 28C° 33C° 39C° 44C° 50C° 56C° 61C° 67C° 72C° 78C°
80,000 --- 74 --- GPH 259 194 155 129 111 97 86 78 71 65 60 55
23.4 --- 280 LPH 979 734 587 489 419 367 326 294 267 245 226 210
Recovery capacity based on 80% thermal efficiency.
BTF-80