Heat pump water heaters ranked by efficiency
Electric tanks filing a UEF of 2.0 or more, ranked by filed UEF inside each draw pattern.
309 heat pump water heaters are on file. Ranked by filed UEF inside each draw pattern, the highest filed UEF at the medium draw pattern is UEF 4.2, shared by 2 models.
Editor's note
This ranks efficiency as filed, not reliability, noise or price; the registry publishes no failure data, and each model page says what it does publish.
Medium draw pattern
a typical three- or four-person household, about 55 gallons on a busy morning — 132 models, top 25 shown, highest UEF first.
- Tied at rank 1: GE Profile PH40S10BPY01 UEF 4.2
- Tied at rank 1: GE Profile PK50S10FNY01 UEF 4.2
- Tied at rank 3: BRADFORD WHITE RE2HP50**-1NCTT UEF 3.89
- Tied at rank 3: JETGLAS RE2HP50**-1NCTT UEF 3.89
- Tied at rank 5: FRIEDRICH PROPH50 T2 RH375-SO UEF 3.88
- Tied at rank 5: FRIEDRICH PROPH50 T2 RH400-30 UEF 3.88
- Tied at rank 5: Rheem PROPH50 T2 RH375-SO UEF 3.88
- Tied at rank 5: Rheem PROPH50 T2 RH400-30 UEF 3.88
- Tied at rank 5: Richmond PROPH50 T2 RH375-SO UEF 3.88
- Tied at rank 5: Richmond PROPH50 T2 RH400-30 UEF 3.88
- Tied at rank 5: Ruud PROPH50 T2 RH375-SO UEF 3.88
- Tied at rank 5: Ruud PROPH50 T2 RH400-30 UEF 3.88
- Rank 13: NAVIEN NWP500S050AUMB UEF 3.85
- Tied at rank 14: ARISTON ARIHPWH-50-T UEF 3.83
- Tied at rank 14: Lennox WHHP050T45MD240S**** UEF 3.83
- Tied at rank 16: A. O. SMITH HPTS-50 2** UEF 3.8
- Tied at rank 16: AMERICAN HPTS-50 2** UEF 3.8
- Tied at rank 16: LOCHINVAR HPTS-50 2** UEF 3.8
- Tied at rank 16: RELIANCE WATER HEATERS HPTS-50 2** UEF 3.8
- Tied at rank 16: STATE HPTS-50 2** UEF 3.8
- Tied at rank 21: 1HVAC ACIQ-50G-HP-WH UEF 3.75
- Tied at rank 21: ACIQ ACIQ-50G-HP-WH UEF 3.75
- Tied at rank 21: ALSETRIA HPWH-50G UEF 3.75
- Tied at rank 21: AMERICAN STANDARD WATER HEATERS ARIHPWH-50 UEF 3.75
- Tied at rank 21: ARISTON ARIHPWH-50 UEF 3.75
22 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 — 171 models, top 25 shown, highest UEF first.
- Rank 1: Chiltrix Inc. DHW105 UEF 4.95
- Tied at rank 2: GE Profile PH50S10BNY01 UEF 4.5
- Tied at rank 2: GE Profile PH80S10BNY01 UEF 4.5
- Rank 4: GE Profile PH80S10BPY01 UEF 4.4
- Tied at rank 5: GE Profile PH50S10BPY01 UEF 4.3
- Tied at rank 5: GE Profile PH65S10BNY01 UEF 4.3
- Tied at rank 5: GE Profile PH65S10BPY01 UEF 4.3
- Tied at rank 8: BRADFORD WHITE RE2HP65**-1NCTT UEF 4.2
- Tied at rank 8: JETGLAS RE2HP65**-1NCTT UEF 4.2
- Tied at rank 8: LG APHWC502D UEF 4.2
- Tied at rank 11: ARISTON ARIHPWH-80-T UEF 4.1
- Tied at rank 11: Lennox WHHP080T45MD240S**** UEF 4.1
- Tied at rank 11: LG APHWC802D UEF 4.1
- Tied at rank 14: FRIEDRICH PROPH80 T2 RH375-SO UEF 4.07
- Tied at rank 14: FRIEDRICH PROPH80 T2 RH400-30 UEF 4.07
- Tied at rank 14: Rheem PROPH80 T2 RH375-SO UEF 4.07
- Tied at rank 14: Rheem PROPH80 T2 RH400-30 UEF 4.07
- Tied at rank 14: Richmond PROPH80 T2 RH375-SO UEF 4.07
- Tied at rank 14: Richmond PROPH80 T2 RH400-30 UEF 4.07
- Tied at rank 14: Ruud PROPH80 T2 RH375-SO UEF 4.07
- Tied at rank 14: Ruud PROPH80 T2 RH400-30 UEF 4.07
- Tied at rank 22: ARISTON ARIHPWH-65-T UEF 4.05
- Tied at rank 22: Lennox WHHP065T45MD240S**** UEF 4.05
- Tied at rank 22: NAVIEN NWP500S080AUMB UEF 4.05
- Tied at rank 25: GREE GRS-3.0Pd/TD70GANhA-D UEF 4.03
1 more model in this draw pattern also files UEF 4.03; the list stops at 25, not at a difference.
Not ranked
Low draw pattern (6 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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