AO Smith 40-gallon Gas Water Heaters - Comparison

Compare the AO Smith 40-gallon gas water heaters to find the best model for your home. The comparison charts display the main differences between tank-type heaters, and it includes the technical data and main features. The article compares the first-hour rating, recovery rate, energy efficiency and igniter and anode rod type, and energy saving systems...

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
Effex High Efficiency
GAHH-40 40 70 43 0.70 62
Tall
A 6
High Efficiency
GCF-40 40 67 42 0.67 64
Tall
A 6
GCFL-40 40 67 42 0.67 54
Short
A 6
Conservationist
XGV-40 40 70 41 0.63 62
Tall
A 10
ProMax Ultra-Low NOx
GCNH-40 40 65 40 0.59 62
Tall
A 10
GNR-40 40 70 40 0.62 62
Tall
A 10
ProMax High Recovery / High Efficiency
GCVT-40 50 75 51 0.59 62
Tall
A 6, 8, 10
GVR-40 40 70 41 0.62 62
Tall
A 6, 8, 10
GVRL-40 40 67 41 0.62 51
Short
A 6, 8, 10
ProMax
GCV-40 40 70 41 0.59 62
Tall
A 6, 8, 10
GCVL-40 40 70 41 0.59 51
Short
A 6, 8, 10
Energy Saver Manufactured Housing
FMV-40 32
35.5
52 36 0.63 61
Tall
A 6
FMD-40 32 64 33 0.59 56
Tall
DV 6
ProMax Power Direct Vent
GPD-40 40 70 41 0.60 57
Tall
PDV 6, 10
ProMax Power Vent
GPVL-40 40 73 44.7 0.70 59
Tall
PV 6, 10
GPVT-40 50 90 55.9 0.70 68
Tall
PV 6, 10
ProMax Power Vent Ultra Low NOx
GPNH-40 42 69 42.6 0.68 59
Tall
PV 6
ProMax Direct Vent
GDV-40 38 73 41 0.60 68
Tall
DV 6
ProMax Direct Vent Ultra Low
GDNL-40 36 59 39 0.59 65
Tall
DV 6
ProMax SideLoop
GCVH-40L 40 70 41 0.59 62
Tall
A 6
GCVT-40L 50 75 51 0.60 62
Tall
A 6
GDV-40L 38 73 41 0.60 68
Tall
DV 6
GPD-40L 40 70 41 0.60 57
Tall
PDV 6

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› AO Smith 40-gal gas comparison chart