AO Smith 50-gallon Gas Water Heaters - Comparison

Compare the gas input, recovery rate, first-hour rate, warranties and top features among all AO Smith 50-gallon gas water heaters, to find the best model to use in residential applications. The charts are very helpful as it compares, side by side, important parameters in water heating with its advantages and disadvantages.

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Technical data comparison

Specs.
---------
Model		 Input
(Btu)
x1000		 First
Hour
Delivery
(GPH)		 Recovery
Rate
(90F)
(GPH)		 Energy
Factor
EF		 Approx.
Height/
Type
(Inch)		 Vent
Type
 Warr
anty
Professional Classic Manufactured Housing
PROG30-32N RH61 MH 32 48 32.3 0.61 60
Tall		 A
 6
Professional Classic
PROG29-32N RH62 32 50 32.3 0.62 60
Tall		 A
 6/10
PROG29-30P RH62 30 50? 30.3 0.62 60
Tall		 A 6/10
PROG30S-30N RH61 30 50 30.3 0.61 50
Short		 A 6/10
Professional Classic Manufactured Housing
PROG30-30N RH61 MH DV 30 51 30.3 0.61 57
Tall		 DV 6
Professional Classic Plus Induced Draft
PRO+G29-60N RH70 ID 60 90 61 0.70 65
Tall		 ID 8/12
Professional Classic Ultra Low NOx
PROG28-30U RH62 30 53 30.3 0.62 59
Tall		 A 6/10

Vent type:

A-Atmospheric, PV-Power Vent, DV-Direct Vent, PDV-Power Direct Vent

Gas type:

N - Natural gas, P - Propane

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

Features comparison

Specs.
---------
Model		 Input
(Btu)
x1000		 First
Hour
Delivery
(GPH)		 Recovery
Rate
(90F)
(GPH)		 Energy
Factor		 Approx.
Height/
Type
(Inch)		 Vent
Type
 Warr
anty
Vertex
GPHE-50 76 127 92 90% 71
Tall		 PV 6
GDHE-50 40 164 129 96% 67
Tall		 PDV 6
Effex High Efficiency
GAHH-50 40 81 43 0.70 61
Tall		 A 6
High Efficiency
GCF-50 40 81 42 0.67 64
Tall		 A 6
GCFL-50 40 86 42 0.67 56
Short		 A 6
Conservationist
XGV-50 40 88 41 0.62 61
Tall		 A 10
ProMax Ultra-Low NOx
GCNH-50 40 75 41 0.58 61
Tall		 A 10
GCNT-50 50 90 52 0.59 64
Tall		 A 10
GNR-50 40 75 41 0.62 61
Tall		 A 10
ProMax High Recovery / High Efficiency
GCVT-50 50 90 51 0.58 61
Tall		 A 6, 8, 10
GCVX-50 65 93 67 0.58 64
Tall		 A 6, 8, 10
GVR-50 40 88 41 0.62 61
Tall		 A 6, 8, 10
ProMax
GCV-50 40 88 41 0.58 61
Tall		 A 6, 8, 10
GCVL-50 40 93 41 0.61 53
Short		 A 6, 8, 10
Energy Saver Manufactured Housing
FMD-50 38 77 39 0.58 56
Tall		 DV 6
ProMax Power Direct Vent
GPD-50 40 87 41 0.59 66
Tall		 PDV 6, 10
GPDX-50 65 105 64 0.58 69
Tall		 PDV 6, 10
ProMax Power Vent
GPVL-50 40 90 44.7 0.70 60
Tall		 PV 6, 10
GPVT-50 50 96 55.9 0.70 68
Tall		 PV 6, 10
GPVX-50L 62 110 69.3 0.70 61
Tall		 PV 6, 10
ProMax Power Vent Ultra Low NOx
GPNH-50 42 81 42.6 0.68 58
Tall		 PV 6
ProMax Direct Vent
GDV-50 42 87 45 0.59 76
Tall		 DV 6
GDVT-50 50 88 55 0.58 76
Tall		 DV 6
ProMax Direct Vent Ultra Low
GDNT-40 38 81 41 0.58 73
Tall		 DV 6
ProMax SideLoop
GCVT-50L 50 90 51 0.58 61
Tall		 A 6
GCVX-40L 65 93 67 0.58 64
Tall		 A 6
GDVT-50L 50 88 55 0.58 76
Tall		 DV 6
GPDX-50L 65 105 64 0.58 69
Tall		 PDV 6

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