Most efficient 50-gallon electric water heaters
Electric tanks filed at 45 to 55 gallons, ranked by filed UEF inside each draw pattern.
255 50-gallon electric water heaters are on file. Ranked by filed UEF inside each draw pattern, the most efficient at the medium draw pattern is the GE Profile PK50S10FNY01 (UEF 4.2).
Editor's note
Both heat pump and resistance tanks are in this list, because the registry files them as one type; the heat pumps rank first on UEF because they move heat rather than make it.
Medium draw pattern
a typical three- or four-person household, about 55 gallons on a busy morning — 224 models, top 25 shown, highest UEF first.
- Rank 1: GE Profile PK50S10FNY01 UEF 4.2
- Tied at rank 2: BRADFORD WHITE RE2HP50**-1NCTT UEF 3.89
- Tied at rank 2: JETGLAS RE2HP50**-1NCTT UEF 3.89
- Tied at rank 4: FRIEDRICH PROPH50 T2 RH375-SO UEF 3.88
- Tied at rank 4: FRIEDRICH PROPH50 T2 RH400-30 UEF 3.88
- Tied at rank 4: Rheem PROPH50 T2 RH375-SO UEF 3.88
- Tied at rank 4: Rheem PROPH50 T2 RH400-30 UEF 3.88
- Tied at rank 4: Richmond PROPH50 T2 RH375-SO UEF 3.88
- Tied at rank 4: Richmond PROPH50 T2 RH400-30 UEF 3.88
- Tied at rank 4: Ruud PROPH50 T2 RH375-SO UEF 3.88
- Tied at rank 4: Ruud PROPH50 T2 RH400-30 UEF 3.88
- Rank 12: NAVIEN NWP500S050AUMB UEF 3.85
- Tied at rank 13: ARISTON ARIHPWH-50-T UEF 3.83
- Tied at rank 13: Lennox WHHP050T45MD240S**** UEF 3.83
- Tied at rank 15: A. O. SMITH HPTS-50 2** UEF 3.8
- Tied at rank 15: AMERICAN HPTS-50 2** UEF 3.8
- Tied at rank 15: LOCHINVAR HPTS-50 2** UEF 3.8
- Tied at rank 15: RELIANCE WATER HEATERS HPTS-50 2** UEF 3.8
- Tied at rank 15: STATE HPTS-50 2** UEF 3.8
- Tied at rank 20: 1HVAC ACIQ-50G-HP-WH UEF 3.75
- Tied at rank 20: ACIQ ACIQ-50G-HP-WH UEF 3.75
- Tied at rank 20: ALSETRIA HPWH-50G UEF 3.75
- Tied at rank 20: AMERICAN STANDARD WATER HEATERS ARIHPWH-50 UEF 3.75
- Tied at rank 20: ARISTON ARIHPWH-50 UEF 3.75
- Tied at rank 20: Bosch TR7000T - 50US UEF 3.75
21 more models in this draw pattern also file UEF 3.75; the list stops at 25, not at a difference.
High draw pattern
a larger household, or one where showers and laundry overlap — 29 models, top 25 shown, highest UEF first.
- Rank 1: GE Profile PH50S10BNY01 UEF 4.5
- Rank 2: GE Profile PH50S10BPY01 UEF 4.3
- Rank 3: LG APHWC502D UEF 4.2
- Rank 4: GREE GRS-3.0Pd/TD50GANhA-D UEF 4.02
- Rank 5: LG APHWC501M UEF 3.93
- Rank 6: Reservoir N51 UEF 3.53
- Tied at rank 7: A. O. SMITH HETF-55 1** UEF 0.94
- Tied at rank 7: A. O. SMITH PETX-55 1** UEF 0.94
- Tied at rank 7: AMERICAN HETF-55 1** UEF 0.94
- Tied at rank 7: AMERICAN PETX-55 1** UEF 0.94
- Tied at rank 7: AMERICAN STANDARD WATER HEATERS ELV055*2***** UEF 0.94
- Tied at rank 7: ARISTON ELV055*2***** UEF 0.94
- Tied at rank 7: HTP ELV055*2***** UEF 0.94
- Tied at rank 7: HTP ELV055C2X045NDR UEF 0.94
- Tied at rank 7: LOCHINVAR HETF-55 1** UEF 0.94
- Tied at rank 7: RELIANCE WATER HEATERS HETF-55 1** UEF 0.94
- Tied at rank 7: RELIANCE WATER HEATERS PETX-55 1** UEF 0.94
- Tied at rank 7: STATE HETF-55 1** UEF 0.94
- Tied at rank 7: STATE PETX-55 1** UEF 0.94
- Tied at rank 20: BRADFORD WHITE RE255T*-***** UEF 0.93
- Tied at rank 20: Essency EXR UEF 0.93
- Tied at rank 20: Essency EXR-D UEF 0.93
- Tied at rank 20: GE GE50S10BAM01 UEF 0.93
- Tied at rank 20: GE GE50S10BMM01 UEF 0.93
- Tied at rank 20: GE GE50S12BLM01 UEF 0.93
4 more models in this draw pattern also file UEF 0.93; the list stops at 25, not at a difference.
Not ranked
Low draw pattern (2 models): fewer than eight models, too few to rank.
How this list is ranked
One filed figure decides the order, inside one draw pattern at a time — the only scope where it compares. Models that file the same figure share a rank, shown as =N. A draw pattern is ranked only when it holds at least eight models and their figures spread by at least 8%; models named in a CPSC recall are left out.
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