A.O. Smith BT-100 User Manual
Commercial gas water heater, Tank-type water heaters
Revised September 2008
Page 1 of 2
AOSCG10600
TANK-TYPE WATER HEATERS
BT-65, 80 & 100
FEATURES
All models comply with ASHRAE/IES 90.1-2004.
GLASS-LINED TANK
— Assures years of rust-free clean hot water.
FULLY AUTOMATIC CONTROLS WITH SAFETY SHUTOFF
— Accurate, dependable control
system requires no electric connections. Fixed automatic gas shutoff device for added safety.
Not recommended for 180°F sanitizing.
HEAVY GAUGE STEEL JACKET
— Finished with baked enamel over bonderized undercoat.
FOAM INSULATION
— Saves fuel, helps reduce standby heat loss.
CERTIFICATION
— BT-65 units are design certified by CSA (Canadian Gas Association for units built
in Canada). Certified for installation on combustible flooring.
LOW NOx
— All models meet or exceed current Texas and California SCAQMD Air Quality
Standards.
EASY TO INSTALL
— Completely factory assembled. Only gas, water and vent connections need
be made. All connections are located in front and top of heaters for ease of installation and service.
DRAFT DIVERTER
— Low profile diverter furnished as standard equipment.
MAXIMUM WORKING PRESSURE
— 150 psi.
MAXIMUM GAS INLET PRESSURE
— 14" W.C.
HANDHOLE CLEANOUT
— On models BT-80 & BT-100. Allows easy tank cleaning.
OTHER FEATURES
• Built-in gas filter and integral dirt leg (propane only) • Anodic protection • Equipped with gas
pressure regulator • Integral automatic gas shutoff system prevents excessive water temperature
• Factory installed A.G.A./ASME rated temperature and pressure relief valve.
Capacity ratings are actual heater performance at 80% thermal efficiency.
NOTE: To compensate for the effects of high altitude areas above 2,000 feet, recovery capacity should be reduced approximately 4%
for every 1,000 feet above sea level.
BT-80 AND 100
BT-65
RECOVERY CAPACITIES
Approx.
Input
Type
TEMPERATURE RISE
Cap.
Rating
of
30°F/
40°F/
50°F/
60°F/
70°F/
80°F/
90°F/ 100°F/ 110°F/ 120°F/ 130°F/ 140°F/
Models Gal’s. Litres Btu/Hr. KW/Hr. Gas
17°C
22°C
28°C
33°C
39°C
45°C
50°C
56°C
61°C
67°C
72°C
78°C
BT-65
65
246
65,000
19.0
GPH
200
150
120
100
86
75
67
60
54
50
46
43
LPH
758
569
455
379
326
284
254
227
205
190
174
163
BT-80
74
280
75,100
22
GPH
243
182
146
121
104
91
81
73
66
61
56
52
LPH
916
686
550
456
392
343
305
275
249
230
211
196
BT-100
100
379
75,100
22
GPH
243
182
146
121
104
91
81
73
66
61
56
52
LPH
916
686
550
456
392
343
305
275
249
230
211
196
18
55,000
Commercial Gas Water Heater
THREE YEAR LIMITED WARRANTY
— For complete warranty information, consult written
warranty or contact A.O. Smith
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