Rheem 40-gallon Gas Water Heaters - Comparison

Explore the Rheem 40-gallon gas water heaters comparison chart to select the best model. The article compares the specifications of all 40-gal gas models from the Rheem manufacturer, including the gas input, FHR, recovery rate, efficiency, warranty, and features such as the type of the ignition system, EverKleen system, and more...

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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
PROG40-34N RH59 MH	32 34	59	32.3 34.3	0.59	62 Tall	A	6
Professional Classic
PROG40-36N RH59	36	67	36.4	0.59	61 Tall	A	6/10
PROG40-38N RH59	38	73	38.4	0.59	62 Tall	A	6/10
PROG40-32P RH59	32	73?	32.3	0.59	62 Tall	A	6/10
PROG38-40N RH60	40	68	40.4	0.60	61 Tall	A	6/10
PROG38-34P RH60	34	68?	34.3	0.60	61 Tall	A	6/10
PROG40-40N RH62	40	68	40.4	0.62	63 Tall	A	6/10
PROG40-34P RH60	34	68?	34.3	0.60	63 Tall	A	6/10
PROG40S-40N RH62	40	72	40.4	0.62	54 Short	A	6/10
PROG40S-36P RH62	36	72?	36.4	0.62	54 Short	A	6/10
PROG40S-36N RH59	36	72	36.4	0.59	53 Short	A	6/10
PROG40S-34P RH59	34	72?	34.3	0.59	53 Short	A	6/10
PROG40S-40N RH59	40	72	40.4	0.59	54 Short	A	6/10
PROG40S-36P RH59	36	72?	36.4	0.59	54 Short	A	6/10
Professional Classic Manufactured Housing
PROG40-36N RH59 MH DVX	30 36	66	30.3 36.4	0.59	60 Tall	DV	6
Professional Classic Manufactured Housing
PROG40-30N RH59 MH DV	30	60	30.3	0.59	57 Tall	DV	6
Professional Classic DV
PROG40-38N RH59 DV	38	66	38.4	0.59	68 Tall	DV	6/10
PROG40-30P RH59 DV	30	64	30.3	0.59	68 Tall	DV	6/10
PROG40-36N RH59 DVV	36	66	36.4	0.59	60 Tall	DV	6/10
PROG40-30P RH59 DVV	30	65	30.3	0.59	60 Tall	DV	6/10
Professional Classic Plus
PRO+G40-40N RH62	40	68	40.4	0.62	63 Tall	A	8/12
PRO+G40-36P RH62	36	-	36.4	-	63 Tall	A	8/12
PRO+G40S-40N RH62	40	72	40.4	0.62	54 Short	A	8/12
PRO+G40S-36P RH62	36	-	36.4	-	54 Short	A	8/12
Professional Classic Plus Powered Damper
PRO+G38-40N RH69 PD	40	68	40.4	0.69	63 Tall	PD	8/12
PRO+G38-36P RH69 PD	36	68?	36.4	0.69	63 Tall	PD	8/12
PRO+G40S-40N RH67 PD	40	72	40.4	0.67	55 Short	PD	8/12
PRO+G40s-36P RH67 PD	36	72?	36.4	0.67	65 Tall	PD	8/12
Professional Classic Plus Ultra Low NOx Powered Damper
PRO+G40-36U RH68	36	71	36.4	0.68	65 Tall	A	8/12
Professional Classic Power Direct Vent
PROG40-40N RH67 PDV	40	73	40.4	0.67	68 Tall	PDV	6/10
PROG40-38P RH67 PDV	38	73	38.4	0.67	68 Tall	PDV	6/10
Professional Classic Power Vent
PROG40-40N RH67 PV	40	68	40.4	0.67	68 Tall	PV	6/10
PROG40-36P RH67 PV	36	68?	36.4	0.67	68 Tall	PV	6/10
PROG40S-36N RH67 PV	36	71	36.4	0.67	62 Short	PV	6/10
PROG40S-32P RH67 PV	32	71?	32.4	0.67	62 Short	PV	6/10
Professional Classic Ultra Low NOx
PROG40-36U RH67 PV	36	72	36.4	0.67	70 Tall	PV	6/10
Professional Classic Ultra Low NOx
PROG38-38U RH60	38	72	38.4	0.60	61 Tall	A	6/10
PROG40-38U RH62	38	73	38.4	0.62	63 Tall	A	6/10
PROG38S-36U RH60	36	68	36.4	0.60	52 Short	A	6/10
Professional Prestige High Efficiency Condensing
RHE40S	40	74	48.5	0.82	60 Short	PDV	6
RHE40SP	36	74	43.6	0.82	60 Short	PDV	6

Vent type:

A-Atmospheric, PV-Power Vent, DV-Direct Vent, ID-Induced Draft

Gas type:

N - Natural gas (e.g. 36N), P - Propane (e.g. 34P)

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

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Features comparison

Features --------- Model	Anode Rod	Self Diagn ostic	Guardian System	EverKleen Self- Cleaning	Low Emissions	Igniter
Professional Classic Manufactured Housing
PROG40-34N RH59 MH	1	-	Yes	Yes	Yes	Pilot
Professional Classic
PROG40-36N RH59	1	-	Yes	Yes	Yes	Pilot
PROG40-38N RH59	1	-	Yes	Yes	Yes	Pilot
PROG40-32P RH59	1	-	Yes	Yes	Yes	Pilot
PROG38-40N RH60	1	-	Yes	Yes	Yes	Pilot
PROG38-34P RH60	1	-	Yes	Yes	Yes	Pilot
PROG40-40N RH62	1	-	Yes	Yes	Yes	Pilot
PROG40-34P RH60	1	-	Yes	Yes	Yes	Pilot
PROG40S-40N RH62	1	-	Yes	Yes	Yes	Pilot
PROG40S-36P RH62	1	-	Yes	Yes	Yes	Pilot
PROG40S-36N RH59	1	-	Yes	Yes	Yes	Pilot
PROG40S-34P RH59	1	-	Yes	Yes	Yes	Pilot
PROG40S-40N RH59	1	-	Yes	Yes	Yes	Pilot
PROG40S-36P RH59	1	-	Yes	Yes	Yes	Pilot
Professional Classic Manufactured Housing
PROG40-36N RH59 MH DVX	1	-	-	Yes	-	Pilot
Professional Classic Manufactured Housing
PROG40-30N RH59 MH DV	1	-	-	Yes	-	Pilot
Professional Classic DV
PROG40-38N RH59 DV	1	-	Yes	Yes	Yes	Pilot
PROG40-30P RH59 DV	1	-	Yes	Yes	Yes	Pilot
PROG40-36N RH59 DVV	1	-	Yes	Yes	-	Pilot
PROG40-30P RH59 DVV	1	-	Yes	Yes	-	Pilot
Professional Classic Plus
PRO+G40-40N RH62	1	-	Yes	Yes	Yes	Pilot
PRO+G40-36P RH62	1	-	Yes	Yes	Yes	Pilot
PRO+G40S-40N RH62	1	-	Yes	Yes	Yes	Pilot
PRO+G40S-36P RH62	1	-	Yes	Yes	Yes	Pilot
Professional Classic Plus Powered Damper
PRO+G38-40N RH69 PD	1	Yes	Yes	-	Yes	Pilot
PRO+G38-36P RH69 PD	1	Yes	Yes	-	Yes	Pilot
PRO+G40S-40N RH67 PD	1	Yes	Yes	-	Yes	Pilot
PRO+G40s-36P RH67 PD	1	Yes	Yes	-	Yes	Pilot
Professional Classic Plus Ultra Low NOx Powered Damper
PRO+G40-36U RH68	1	Yes	Yes	Yes	Yes	Pilot
Professional Classic Power Direct Vent
PROG40-40N RH67 PDV	1	Yes	-	Yes	Yes	HSI
PROG40-38P RH67 PDV	1	Yes	-	Yes	Yes	HSI
Professional Classic Power Vent
PROG40-40N RH67 PV	1	Yes	Yes	Yes	Yes	HSI
PROG40-36P RH67 PV	1	Yes	Yes	Yes	Yes	HSI
PROG40S-36N RH67 PV	1	Yes	Yes	Yes	Yes	HSI
PROG40S-32P RH67 PV	1	Yes	Yes	Yes	Yes	HSI
Professional Classic Ultra Low NOx
PROG40-36U RH67 PV	1	-	Yes	Yes	Yes	Pilot
PROG38-38U RH60	1	-	Yes	Yes	Yes	Pilot
PROG40-38U RH62	1	-	Yes	Yes	Yes	Pilot
PROG38S-36U RH60	1	-	Yes	Yes	Yes	Pilot
Professional Prestige High Efficiency Condensing
RHE40S	2	Yes	-	-	Yes	HSI
RHE40SP	2	Yes	-	-	Yes	HSI