Spec Sheet
NATURAL GAS
TTW
®
High EF Ultra Low NOx Energy Saver Models
Meet or exceed ASHRAE 90.1b (current standard) C.E.C. Listed
80% Recovery Efficiency
Model
Number
Capacity
F
Floor
to
Top of
Heater
in.
Approx.
Shipping
Weight
lbs.
E
Floor
to
Gas
Conn.
in.
A
Floor to
Vent
Conn.
in.
D
Floor to
T&P
Conn.
in.
C
Vent
Size
in.
B
Jacket
Dia.
in.
Gal.
U.S.
Input
Nat.
BTU/Hr.
GPH
Nat.
Imp.
Recovery
90°F Rise*
40 40,000 20 236 67
67
68
U-4-TW-40T6FRN
U-4-TW-50T6FRN
U-4-TW-60T6FRN
U-4-TW-40T6FRN
U-4-TW-50T6FRN
U-4-TW-60T6FRN
50
Gal.
Imp.
33
42 40,000 22 236
GPH
Nat.
U.S.
43
43
Model
Number
Capacity
Liters
F
Floor
to
Top of
Heater
mm.
Approx.
Shipping
Weight
kg.
E
Floor
to
Gas
Conn.
mm.
A
Floor to
Vent
Conn.
mm.
D
Floor to
T&P
Conn.
mm.
C
Vent
Size
mm.
B
Jacket
Dia.
mm.
Input
Nat.
kW
Hour
Nat.
Liters/
Recovery
50°C Rise*
151 11.7 163
190 11.7 163
1702
1702
1727
508
559
610
51
51
298
298
G
Floor
to
Water
Conn.
in.
G
Floor
to
Water
Conn.
mm.
1220
1251
H
Depth
in.
H
Depth
mm.
632
679
60 51 40,000 24 23643
227 11.7 163 51 298 1486 730
1270
1270
1283
1441
1448
1467
69
80
96
50
50
50
1
/
2
56
3
/
4
57
57
3
/
4
11
3
/
4
11
3
/
4
11
3
/
4
57
3
/
4
58
58
3
/
4
24
7
/
8
26
3
/
4
28
3
/
4
152
175
210
Residential Power Vent Gas Water Heater
General
All gas water heaters are certified at 300 PSI (2068 kPa) test pressure and 150 PSI (1034 kPa) working pressure.
All water connections are 3⁄4" NPT (19mm) on 8" (203mm) centers, all gas connections are 1⁄2" (13mm).
All models design certified by CSA International (formerly AGA/CGA ), ANSI Z-21.10.1 and peak performance rated.
Dimensions and specifications subject to change without notice in accordance with our policy of continuous product improvement.
Suitable for Water (Potable) Heating and Space Heating.
Toxic chemicals, such as those used for boiler treatment, shall NEVER be introduced into this system. This unit may NEVER be connected to any existing
heating system or component(s) previously used with a non-potable water heating appliance.
Available in Natural Gas only.
For 10 year models, change suffix from “6” to “10”.
*Based on manufacturer’s rated recovery efficiency.
110 V.A.C. Required for Power Venting / 110 V.A.C., 60HZ, 3.1 Amperes.
C
A
G
F
E
B
D
H
2"
Vent Pipe
3"
Vent Pipe
U-4-TW-40
U-4-TW-50
U-4-TW-60
†
50 ft.
7 ft.
45 ft.
40 ft.
35 ft.
†
120 ft.
15 ft.
115 ft.
110 ft.
105 ft.
Max. Equivalent Length
Min. Equivalent Length
Number 1
of 2
90° Elbows 3
†For high altitude installations, consult
the installation instructions.
Printed in U.S.A.
259-B-0413-A
©2013, Bradford White Corporation. All rights reserved.
Ambler, PA
For U.S. and Canada field service, contact your professional installer or local Bradford White sales representative.
Sales 800-523-2931
●
Fax 215-641-1670 / Technical Support 800-334-3393
●
Fax 269-795-1089
●
Warranty 800-531-2111
●
Fax 269-795-1089
International: Telephone 215-641-9400
●
Telefax 215-641-9750 / www.bradfordwhite.com
Sales / Technical Support 866-690-0961 / 905-238-0100
●
Fax 905-238-0105 / www.bradfordwhite.com
All models comply with the latest ultra-low NOx requirements of 10 ng/J or less.