Records
Best-in-class performers across all efficiency metrics.
As of March 2026
All-Around Champions
Best composite scores across all efficiency metrics
86
Mitsubishi Electric
MUZ-FX06NLHZ2***
87
Fujitsu
AOUH09KTAP1
83
Midea
37MPRAQ06AA3
As of March 2026, the most efficient cold climate heat pump is the Fujitsu AOUH09KTAP1 with 2.48 COP at 5°F and 33.5 SEER2.
Cold climate efficiency - performance at 5°F outdoor temperature
3.20
Daikin
RXLA36AAVJU*
3.20
Trane
5TWR4036A1
3.08
Rheem
RP15AY48AJ2N
Leaderboard
Top performers in COP@5°F
| Rank | Brand | COP@5°F |
|---|---|---|
Trane 5TWR4036A1 | 3.20 | |
Daikin RXLA36AAVJU* | 3.20 | |
Rheem RP15AY48AJ2N | 3.08 | |
4 | Carrier 248TAN036**AA* | 3.05 |
5 | York XH548E2S11 | 3.04 |
6 | Mitsubishi Electric SUZ-AA36NL*** | 3.00 |
7 | Lennox SL22KLV-036-230A** | 2.76 |
8 | GE Appliances NS16H24SA5-**A | 2.69 |
9 | Bosch BOVA-36RTB-M20S | 2.69 |
10 | Ecoer EODA19H-4860AB* | 2.65 |
Market Context
How records compare to market averages
COP@5°F Record vs Market
The record is 58% above market average
All Metrics Overview
About These Records
Records showcase the absolute best performers in each efficiency metric. The All-Around Champions combine COP@5°F, SEER2, and capacity ratio into a composite score. Data is updated as new products enter the market.
