A. O. SMITH water heaters
What A. O. SMITH has on file with the DOE CCD — as filed, with no rating of the brand itself.
A. O. SMITH has 171 basic models on file with the DOE CCD, across 5 heater types. Of the 170 that sit in a class large enough to compare, 58 use less energy a year than their class median. Every model below links to its own page.
By heater type
Counts and ranges as filed. A class median is only used where eight or more models share the class.
| Heater type | Models | UEF range | Below class median |
|---|---|---|---|
| A gas tank | 64 | 0.57–0.9 | 25 of 64 |
| An electric tank | 59 | 0.88–3.88 | 18 of 59 |
| A gas tankless unit | 33 | 0.81–0.95 | 15 of 33 |
| An electric tankless unit | 14 | 0.92–0.94 | 0 of 14 |
| A short tank built to sit under a counter | 1 | 0.9 | no class median |
Every model
Grouped by heater type, alphabetical within each.
An electric tank 59 models
-
A. O. SMITH EELBU-50 1**
-
A. O. SMITH EETU-55W 1**
-
A. O. SMITH ENJ-30 1**
-
A. O. SMITH ENJ-40 1**
-
A. O. SMITH ENJ-40W 1**
-
A. O. SMITH ENJB-30 1**
-
A. O. SMITH ENJB-40 1**
-
A. O. SMITH ENJB-40W 1**
-
A. O. SMITH ENL-30 1**
-
A. O. SMITH ENL-36 2**
-
A. O. SMITH ENL-40 1**
-
A. O. SMITH ENL-50 1**
-
A. O. SMITH ENLB-30 1**
-
A. O. SMITH ENLB-40 1**
-
A. O. SMITH ENLB-40W 1**
-
A. O. SMITH ENLB-50 1**
-
A. O. SMITH ENLB-50W 1**
-
A. O. SMITH ENS-30 1**
-
A. O. SMITH ENS-40 1**
-
A. O. SMITH ENS-40W 1**
-
A. O. SMITH ENS-50 1**
-
A. O. SMITH ENSB-30 1**
-
A. O. SMITH ENT-40 1**
-
A. O. SMITH ENT-50-1**
-
A. O. SMITH ENT-55 1**
-
A. O. SMITH FPTU-50 1**
-
A. O. SMITH FPTU-66 1**
-
A. O. SMITH FPTU-80 1**
-
A. O. SMITH HESF-40 1**
-
A. O. SMITH HESF-50 1**
-
A. O. SMITH HETF-40 1**
-
A. O. SMITH HETF-50 1**
-
A. O. SMITH HETF-55 1**
-
A. O. SMITH HPACO-45 1**+AXST-50LBTTP 1**
-
A. O. SMITH HPACO-45 1**+AXST-50S 1**
-
A. O. SMITH HPACO-45 1**+AXST-50T 1**
-
A. O. SMITH HPACO-45 1**+AXST-66 1**
-
A. O. SMITH HPACO-45 1**+AXST-80 1**
-
A. O. SMITH HPTA-40 2**
-
A. O. SMITH HPTA-50 2**
-
A. O. SMITH HPTA-66 2**
-
A. O. SMITH HPTA-80 2**
-
A. O. SMITH HPTS-50 2**
-
A. O. SMITH HPTS-66 2**
-
A. O. SMITH HPTS-80 2**
-
A. O. SMITH HPTU-50N 1**
-
A. O. SMITH HPTU-66N 1**
-
A. O. SMITH HPTU-80N 1**
-
A. O. SMITH HPTV-50 2**
-
A. O. SMITH HPTV-66 2**
-
A. O. SMITH HPTV-80 2**
-
A. O. SMITH MHE6-30H-045D 1**
-
A. O. SMITH MHE6-40R-045D 1**
-
A. O. SMITH MHE6-40RW-035D-1**
-
A. O. SMITH PESX-40 1**
-
A. O. SMITH PESX-50 1**
-
A. O. SMITH PETX-40 1**
-
A. O. SMITH PETX-50 1**
-
A. O. SMITH PETX-55 1**
A gas tank 64 models
-
A. O. SMITH FMDV-30 2**
-
A. O. SMITH FMDV-40 2**
-
A. O. SMITH FMDV-50 2**
-
A. O. SMITH FMHR-30 4**
-
A. O. SMITH FMHR-40 4**
-
A. O. SMITH G6-US4040NV 5**
-
A. O. SMITH G6-UT3030NVR 5**
-
A. O. SMITH G6N-UT4040NVR 5**
-
A. O. SMITH G6N-UT5040NVR 5**
-
A. O. SMITH G9-UT4040NVR 5**
-
A. O. SMITH G9-UT5040NVR 5**
-
A. O. SMITH GCB-30R 4**
-
A. O. SMITH GCB-40 4**
-
A. O. SMITH GCBL-30R 4**
-
A. O. SMITH GCBL-40 4**
-
A. O. SMITH GCF-40 1**
-
A. O. SMITH GCF-50 1**
-
A. O. SMITH GCFL-40 1**
-
A. O. SMITH GCFL-50 1**
-
A. O. SMITH GCG-50 4**
-
A. O. SMITH GCGH-50 2**
-
A. O. SMITH GCR-30 2**
-
A. O. SMITH GCR-30R 2**
-
A. O. SMITH GCR-30R 4**
-
A. O. SMITH GCR-40 2**
-
A. O. SMITH GCR-40 410
-
A. O. SMITH GCR-50 2**
-
A. O. SMITH GCR-50 4**
-
A. O. SMITH GCRH-40 4**
-
A. O. SMITH GCRL-30R 4**
-
A. O. SMITH GCRL-40 2**
-
A. O. SMITH GCRL-40 4**
-
A. O. SMITH GCRL-50 2**
-
A. O. SMITH GCRL-50 4**
-
A. O. SMITH GCRT-50 4**
-
A. O. SMITH GCRX-50 2**
-
A. O. SMITH GCRX-55 2**
-
A. O. SMITH GDV-40 3**
-
A. O. SMITH GDV-50 3**
-
A. O. SMITH GDVNL-40L 1**
-
A. O. SMITH GDVNT-50L 1**
-
A. O. SMITH GDVT-50 3**
-
A. O. SMITH GPCT-40L 1**
-
A. O. SMITH GPCX-50L 1**
-
A. O. SMITH GPDL-40 3**
-
A. O. SMITH GPDNL-40 1**
-
A. O. SMITH GPDNT-50 1**
-
A. O. SMITH GPDT-50 3**
-
A. O. SMITH GPDX-50L 3**
-
A. O. SMITH GPVL-40 2**
-
A. O. SMITH GPVL-50 2**
-
A. O. SMITH GPVNT-40 1**
-
A. O. SMITH GPVNT-50 1**
-
A. O. SMITH GPVT-40 2**
-
A. O. SMITH GPVT-50 2**
-
A. O. SMITH GPVX-50L 2**
-
A. O. SMITH GUC 40 4**
-
A. O. SMITH GUC-30 4**
-
A. O. SMITH GUC-50 4**
-
A. O. SMITH GUF-40 1**
-
A. O. SMITH GUF-50 1**
-
A. O. SMITH GUR 40 4**
-
A. O. SMITH GUR-50 4**
-
A. O. SMITH GURT-50RL 4**
A gas tankless unit 33 models
-
A. O. SMITH ACTH-199M-(N,P) 1**
-
A. O. SMITH ATHR-160M 1**
-
A. O. SMITH ATHR-180M 1**
-
A. O. SMITH ATHR-199M 1**
-
A. O. SMITH ATI-140B-N 1**
-
A. O. SMITH ATI-180B-N 1**
-
A. O. SMITH ATI-199B-N 1**
-
A. O. SMITH ATM-140M-N 1**
-
A. O. SMITH ATM-160M-N 1**
-
A. O. SMITH ATM-180M-N 1**
-
A. O. SMITH ATM-199M-N 1**
-
A. O. SMITH ATO-140B-N 1**
-
A. O. SMITH ATO-140X3-N 1**
-
A. O. SMITH ATO-180B-N 1**
-
A. O. SMITH ATO-199B-N 1**
-
A. O. SMITH T-H3-DV-N 1**
-
A. O. SMITH T-H3-OS-N 1**
-
A. O. SMITH T-H3J-DV-N 1**
-
A. O. SMITH T-H3J-OS-N 1**
-
A. O. SMITH T-H3M-DV-N 1**
-
A. O. SMITH T-H3M-OS-N 1**
-
A. O. SMITH T-H3S-DV-N 1**
-
A. O. SMITH T-H3S-OS-N 1**
-
A. O. SMITH TK-110U-E 2**
-
A. O. SMITH TK-110U-I 2**
-
A. O. SMITH TK-310C-NI 1**
-
A. O. SMITH TK-310CX3 1**
-
A. O. SMITH TK-310U-E 2**
-
A. O. SMITH TK-310U-I 2**
-
A. O. SMITH TK-510C-NI 1**
-
A. O. SMITH TK-510CX3 1**
-
A. O. SMITH TK-510U-E 2**
-
A. O. SMITH TK-510U-I 2**
An electric tankless unit 14 models
-
A. O. SMITH UPVA-18K 1**
-
A. O. SMITH UPVA-24K 1**
-
A. O. SMITH UPVA-30K 1**
-
A. O. SMITH UPVA-35E 1**
-
A. O. SMITH UPVA-35K 1**
-
A. O. SMITH UPVA-40Y 1**
-
A. O. SMITH UPVA-45E 1**
-
A. O. SMITH UPVA-55E 1**
-
A. O. SMITH UPVA-55Y 1**
-
A. O. SMITH UPVA-70E 1**
-
A. O. SMITH UPVA-80Y 1**
-
A. O. SMITH UPVA-90E 1**
-
A. O. SMITH UPVA-110E 1**
-
A. O. SMITH UPVA-110Y 1**
A short tank built to sit under a counter 1 model
What this page does not say
Nothing about how long A. O. SMITH heaters last, how often they fail or how its warranty compares: no registry this site reads publishes any of it, and this site does not estimate it. The DOE CCD records what each model is certified to do, and that is what this page counts.
Related pages
-
Every brand on file
The other brands with a page, largest first.
-
Find what replaces your water heater
Enter the model number off your old unit and see what is on file today, with the yearly cost difference.
-
Find a water heater that fits
Three questions — fuel, hot water need, install space — narrow every model on file to the ones that fit.
-
What a water heater costs to run
Prices a unit's efficiency against your own utility's filed tariff for your ZIP code.
-
Water heaters
Every model on file with the Department of Energy, by heater type.
-
How the numbers are calculated
The formula, the tariff rule and where published costs disagree.
-
What is a good first hour rating for a water heater?
The first hour rating every storage model on file actually lists, by tank size, next to the DOE method for checking it against your own household.