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