Bradford White 40-gallon Gas Water Heaters - Comparison

A review of the Bradford White 40-gallon gas water heaters by using the comparison chart to find the high efficient, low NOx, high recovery models, and other popular types.

Technical data comparison

Specs.
---------
Model		 Input
(Btu)
x1000		 First
Hour
Delivery
(GPH)		 Recovery
Rate
(90F)
(GPH)		 Efficie-
ncy		 Approx.
Height/
Type
(Inch)		 Vent
Type
 Warr
anty
Energy Saver FVIR
M-I-40T6FBN 40
36		 76 42
38		 79% 60
 A 6, 10
M-I-403S6FBN 40
38		 74 42
40		 79% 50 A 6, 10
M-I-404T6FBN 50
48		 87 53
50		 79% 61 A 6, 10
Energy Saver High EF FVIR
M-4-40T6FBN 40
36		 76 43
38		 79% 60
 A 6, 10
M-4-403S6FBN 40
38		 74 43
40		 79% 50
 A 6, 10
Energy Saver FVIR Extra Recovery
M-1-
XR403S6FBN		 40
38		 74 43
40		 79% 49
 A 6, 10
Super High EF Energy Saver
HE-4-40S6FBN 38 72 40 78% 56
 A 6, 10
Gas Damper Energy Saver High EF
D-4-403S6FBN 38 72 40 78% 56
 FD 6, 10
Energy Saver TTW1 FVIR
M-1-TW-
40S6FBN		 40
38		 72 43
41		 79% 47 PV 6, 10
Energy Saver TTW High EF
M-4-
TW40T6FBN		 40
38		 72 43
41		 78% 67 PV 6, 10
Energy Saver FVIR PDX1
PDX1-40S6FBN 40
38		 72 43
41		 79% 59 PDV 6, 10
Energy Saver FVIR PDX4
PDX4-40S6FBN 40
38		 70 43
41		 78% 59 PDV 6, 10
Energy Saver FVIR Direct Vent
DS1-40S6FBN 40
36		 73 41
39		 79% 64 DV 6, 10
Energy Saver Manufactured Home WH
M-I-MS40T6LX 30 59 31 78% 59 DV 6, 10
M-I-MH40T6FLX 34 59 35 78% 60 A 6, 10
Energy Saver FVIR Ultra Low NOx WH
U1-403S6FRN 40 72 42 79% 50 A 6, 10
U1-40T6FRN 40 77 42 79% 59 A 6, 10
U1-404T6FRN 50 86 53 79% 61 A 6, 10
Energy Saver FVIR Ultra Low NOx High Efficiency WH
U4-40T6FRN 40 77 43 79% 59 A 6, 10
U4-403S6FRN 40 72 43 79% 50 A 6, 10
Energy Saver FVIR Ultra Low NOx Extra Recovery WH
U1-XR-
403S6FRN		 40 72 43 78% 50 A 6, 10
Energy Saver FVIR TTW1 Ultra Low NOx WH
U-1-TW-
40S6FRN		 40 72 43 80% 57 PV 6, 10
Energy Saver TTW High EF Ultra Low NOx WH
U-4-TW-
40T6FRN		 40 72 43 78% 67 PV 6, 10
Energy Direct Vent Ultra Low NOx WH
UDS1-40S6FRN 38 73 41 78% 63 DV 6, 10

Vent type:

A-Atmospheric, PV-Power Vent, DV-Direct Vent, PDV-Power Direct Vent, FD-Flue Damper

Gas type:

Every model that ends with BN is natural gas model. Change BN to SX for propane type. (Example: M-I-30T6FBN is natural gas, M-I-30T6FSX is propane water heater). On some models change X to N (example: M-I-MS30T6LX to M-I-MS30T6LN) to order natural gas heater. Models that end with FRN, such as UDS1-40S6FRN, are for natural gas only.

If the table cell has two values... upper values are for natural gas while lower values are for propane.

Models with the energy factor, EF, of 0.67 and over are Energy Star.

Features comparison

Features
---------
Model		 Anode
Rod		 Defender
Safety
System		 ICON
system
 Hydrojet
Self Cleaning system		 Low
NOx
Design		 Igniter
Energy Saver FVIR
M-I-40T6FBN 1 (Mg) Yes Yes Yes No Piezo
M-I-403S6FBN 1 (Mg) Yes Yes Yes No Piezo
M-I-404T6FBN 1 (Mg) Yes Yes Yes No Piezo
Energy Saver High EF FVIR
M-4-40T6FBN 1 (Mg) Yes Yes Yes No Piezo
M-4-403S6FBN 1 (Mg) Yes Yes Yes No Piezo
Energy Saver FVIR Extra Recovery
M-1-XR403S6FBN 1 (Mg) Yes Yes Yes No Piezo
Super High EF Energy Saver
HE-4-40S6FBN 1 (Mg) Yes Yes Yes No Piezo
Gas Damper Energy Saver High EF
D-4-403S6FBN 1 (Mg) Yes Yes Yes No Piezo
Energy Saver TTW1 FVIR
M-1-TW-40S6FBN 1 (Mg) Yes Yes Yes No Electr.
Energy Saver TTW High EF
M-4-TW40T6FBN 1 (Mg) Yes Yes Yes No Piezo
Energy Saver FVIR PDX1
PDX1-40S6FBN 1 (Mg) Yes Yes Yes No Electr.
Energy Saver FVIR PDX4
PDX4-40S6FBN 1 (Mg) Yes Yes Yes No Electr.
Energy Saver FVIR Direct Vent
DS1-40S6FBN 1 (Mg) Yes Yes Yes No Electr.
Energy Saver Manufactured Home WH
M-I-MS40T6LX 1 (Mg) No Yes Yes No Piezo
M-I-MH40T6FLX 1 (Mg) No Yes Yes No Piezo
Energy Saver FVIR Ultra Low NOx WH
U1-403S6FRN 1 (Mg) No Yes Yes Yes Piezo
U1-40T6FRN 1 (Mg) No Yes Yes Yes Piezo
U1-404T6FRN 1 (Mg) No Yes Yes Yes Piezo
Energy Saver FVIR Ultra Low NOx High Efficiency WH
U4-40T6FRN 1 (Mg) No Yes Yes Yes Piezo
U4-403S6FRN 1 (Mg) No Yes Yes Yes Piezo
Energy Saver FVIR Ultra Low NOx Extra Recovery WH
U1-XR-403S6FRN 1 (Mg) No Yes Yes Yes Piezo
Energy Saver FVIR TTW1 Ultra Low NOx WH
U-1-TW-40S6FRN 1 (Mg) No Yes Yes Yes Piezo
Energy Saver TTW High EF Ultra Low NOx WH
U-4-TW-40T6FRN 1 (Mg) No Yes Yes Yes Piezo
Energy Direct Vent Ultra Low NOx WH
UDS1-40S6FRN 1 (Mg) No Yes Yes Yes Piezo

Every Bradford White gas water heater from the above text uses the Hydrojet system to reduce or prevent the sediment build-up in the heater's tank. This is done by designing the dip tube to create the turbulent water flow inside the tank.

The ICON system is an advanced feature, and it combines the temperature control, diagnostic codes, system functions, controller, and the LCD display.

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