AO Smith 30-gallon Gas Water Heaters - Comparison

Compare the AO Smith 30-gallon gas water heaters, side by side in the easy to use comparison chart. Check the main technical data (specifications) also features such as the self-diagnostic system, low NOx gas combustion system and more...

Technical data comparison

Specs. --------- Model	Input (Btu) x1000	First Hour Delivery (GPH)	Recovery Rate (90F) (GPH)	Energy Factor	Approx. Height/ Type (Inch)	Vent Type	Warr anty
ProMax Ultra-Low NOx
GCNH-30	30	50	31	0.61	60 Tall	A	10
ProMax Plus High Efficiency
GVR-30	35.5	67	36	0.62	61 Tall	A	6, 8, 10
ProMax
GCV-30	35.5	67	36	0.61	61 Tall	A	6, 8, 10
GCVL-30	35.5	60	36	0.61	50 Short	A	6, 8, 10
Energy Saver Manufactured Housing
FMV-30	32 35.5	52	36	0.63	61 Tall	A	6
FMD-30	30	54	31	0.61	56 Short	DV	6

Vent type:

A-Atmospheric, PV-Power Vent, DV-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

Features --------- Model	Anode Rod	Advanced Diagnostic	Guardian System	DynaClean Self- Cleaning	Low NOx Design	Igniter
ProMax Ultra-Low NOx
GCNH-30	1 (Al)	Yes	No	Yes	Ultra	Pilot
ProMax Plus High Efficiency
GVR-30	1 (Al)	No	No	Yes	Yes	Pilot
ProMax
GCV-30	1 (Al)	Yes	No	Yes	Yes	Pilot
GCVL-30	1 (Al)	Yes	No	Yes	Yes	Pilot
Energy Saver Manufactured Housing
FMV-30	1 (Al)	No	No	No	Yes	Pilot
FMD-30	1 (Al)	No	No	No	Yes	Pilot

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