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Top cold-climate picks for their size and type

Qualifies when its capacity retention at 5°F (capacity at 5°F as a share of capacity at 47°F) is at least 70% and Capacity retention at 5°F, COP at 5°F, HSPF2 are all rated. Score = the equal-weight mean of its peer percentiles on Capacity retention at 5°F, COP at 5°F, HSPF2 (share of the other models in its peer group it beats, 0–100), all from one certified pairing: in each duct type a model is sold in, its qualifying pairing of that type with the best score; equal scores (one decimal) go to the higher heating capacity at 5°F. COP at 5°F alone is not used: it is measured at whatever heat output the unit delivers at 5°F, so a unit with little output there can still post a high COP. The single-rating boards remain, each labelled as ranked by that one rating. Only manufacturers with a QMID (IRS Qualified Manufacturer ID) on file are ranked.

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Top 25 cold-climate picks, all sizes

One model per manufacturer (top 25), ranked by cold-climate score. The score is a mean of peer percentiles, so models of different sizes compare; their raw values do not.
# · Outdoor modelManufacturerSize · typeCap. 5/47COP@5°FHSPF2Btu/h @5°FSEER2EER2MeetsCombosAHRI ref.Compared withScoreBeats on Cap. 5/47Beats on COP@5°FBeats on HSPF2
1LMU421HHVLGLG3.5 tons42,000 Btu/h · Non-ducted100%2.2911.048,00021.513.8CEE 25CEE 26CEE AdvXcelDOEES CC3206717001Non-ducted, 3.5–4.5 tons97.498%98%96%
2NAXSPH06B112A*American Standard / Mitsubishi Electric · M-Serieswith ductless indoor unit NAXWPH06B112AAMitsubishi Electric0.5 tons6,000 Btu/h · Non-ducted121%2.4611.910,50032.219.1CEE 25CEE 26CEE AdvXcelDOEES CC2206195819Non-ducted, up to 1.5 tons97.398%98%96%
3AOUG12LZAS1FUJITSU · H-Serieswith ductless indoor unit ASUG12LZASFujitsu1 ton12,000 Btu/h · Non-ducted138%2.3212.916,60029.415.2CEE 25CEE 26CEE AdvXcelDOEES CC2204740068Non-ducted, up to 1.5 tons96.999%93%98%
438MURAQ36AB3*BRYANT HEATING AND COOLING SYSTEMSwith indoor coil H,PG48936 and furnace 927TA60080V21Carrier3 tons38,500 Btu/h · Ducted115%2.3411.541,50018.011.5CEE 25CEE 26CEE AdvXcelDOE4,874216761988Ducted, 2.5–3 tons96.499%90%100%
5DLCPRBH18AAKMIDEA · DLC-serieswith ductless indoor unit DLFPHBH18XAKAlso sold as MDV MOD30-18HFN1-MZ20W, Arcoaire DLCPRBH18AAK, Payne 38MPRBQ18AA3; also listed as 38MPRBQ18AA3Midea1.5 tons18,000 Btu/h · Non-ducted120%2.8911.024,00026.315.3CEE 25CEE 26CEE AdvXcelDOEES CC1207826650Non-ducted, up to 1.5 tons95.097%99%88%
6MSH183G26MCAAGOODMAN · MSH Serieswith ductless indoor unit MSH183G26AXAADaikin1.5 tons18,000 Btu/h · Non-ducted120%2.8911.024,00026.315.3CEE 25CEE 26CEE AdvXcelDOEES CC1214438121Non-ducted, up to 1.5 tons95.097%99%88%
7RO1HGZ15AJ1SRUUD · Prestigewith ductless indoor unit UIWHGZ15AJ1SRheem1 ton14,500 Btu/h · Non-ducted117%2.2412.821,00025.313.9CEE 25CEE 26CEE AdvXcelDOE2210368107Non-ducted, up to 1.5 tons95.097%90%98%
8SENA-36HF-MOBSENVILLE · SENA SeriesSenville3 tons36,000 Btu/h · Non-ducted103%2.0010.937,00022.412.5CEE 25CEE 26XcelES CC3213732656Non-ducted, 2.5–3 tons90.997%79%97%
9A-VMH36QV-1ACOMFORT-AIRE · A-seriesLennox3 tons36,000 Btu/h · Non-ducted103%2.0010.937,00022.412.5CEE 25CEE 26XcelES CC6214377756Non-ducted, 2.5–3 tons90.997%79%97%
10AR09CSDABWKXSAMSUNG · WindFree™ 3.0 (RAC)with ductless indoor unit AR09CSDABWKNSamsung1 ton9,000 Btu/h · Non-ducted133%2.2510.512,00024.515.5CEE 25CEE 26CEE AdvXcelDOE1210445757Non-ducted, up to 1.5 tons90.199%91%81%
11CH-HPR06F9-230VOC&H · CH serieswith ductless indoor unit CH-06MASTWM-230VICooper&Hunter0.5 tons6,000 Btu/h · Non-ducted107%2.0913.67,50026.515.8CEE 25CEE 26XcelES CC8207740500Non-ducted, up to 1.5 tons89.394%75%99%
12BMS500-AAS009-1CSXRCBOSCH · BMS500with ductless indoor unit BMS500-AAU006-1AHWXCBosch0.5 tons6,000 Btu/h · Non-ducted107%2.0913.67,50026.515.8CEE 25CEE 26XcelES CC5207759993Non-ducted, up to 1.5 tons89.394%76%99%
13BMY6HH27CBLUERIDGE · BM serieswith ductless indoor unit BMY6HH27WMBlueRidge0.5 tons6,000 Btu/h · Non-ducted107%2.0913.67,50026.515.8CEE 25CEE 26XcelES CC2207826692Non-ducted, up to 1.5 tons89.394%75%99%
14BZ33-HYP06OUT2-G2-PBreeze33 · BZ33 serieswith ductless indoor unit BZ33-HYP06WALL2-G2-PBreeze330.5 tons6,000 Btu/h · Non-ducted107%2.0913.67,50026.515.8CEE 25CEE 26XcelES CC1207862069Non-ducted, up to 1.5 tons89.394%75%99%
15SHV18H2R20INNOVAIR · SHV Serieswith ducted air handler WEV18H2R19Innovair1.5 tons18,000 Btu/h · Ducted99%2.3010.818,80019.312.1CEE 25CEE 26XcelES CC4213255597Ducted, up to 1.5 tons86.983%84%94%
16DRA1H24S1ADurastar · DRA1with ductless indoor unit DRAC24F1BDurastar2 tons24,000 Btu/h · Non-ducted103%2.0011.525,80020.511.0CEE 25CEE 26CEE AdvXcelDOEES CC5210568114Non-ducted, 2 tons86.195%63%100%
17AOX230-09HFN1-MW5WAC PRO.COMwith ductless indoor unit ASEPB-09HRFN1-MY5W(GA)Gree1 ton9,000 Btu/h · Non-ducted86%2.1912.38,58125.515.0CEE 25CEE 26XcelES CC8207827145Non-ducted, up to 1.5 tons86.074%87%97%
18O-ES-09-HP-C-230BMRCOOL · O-serieswith ductless indoor unit O-09-HP-WMAH-230BMRCOOL1 ton9,000 Btu/h · Non-ducted86%2.1912.38,58125.515.0CEE 25CEE 26XcelES CC1208552810Non-ducted, up to 1.5 tons86.074%87%97%
19YN009GMFI22RPEPIONEER · YN-serieswith ductless indoor unit CK009GMFILCFHDPioneer1 ton9,000 Btu/h · Non-ducted77%2.3711.58,50022.513.0CEE 25CEE 26XcelES CC4213349746Non-ducted, up to 1.5 tons84.766%95%93%
204A6C7048A3AMERICAN STANDARD · GOLD17with ducted air handler 4PX*DU60BS3+P0V0C000M50SCAlso listed as 4A6C7048A4Trane4 tons46,500 Btu/h · Ducted101%3.608.147,00017.012.5CEE 25CEE 26Xcel24213867310Ducted, 3.5–4.5 tons84.199%100%53%
21HMH72B341YORKwith indoor coil CM36B36+TDR and furnace TM9V120D20MP12York2.5 tons31,600 Btu/h · Ducted100%2.948.525,40017.09.3CEE 25CEE 26CEE AdvXcelDOEES CC13,786211628039Ducted, 2.5–3 tons83.896%98%57%
22FRP18AZ36AJVCFRIEDRICH · K-SERIESwith indoor coil TCFZ3621MEAAM and furnace FR801V0504A17UHUFriedrich3 tons34,200 Btu/h · Ducted121%2.208.543,50019.012.5CEE 25CEE 26CEE AdvXcelDOEES CC23213829722Ducted, 2.5–3 tons80.6100%85%57%
23ASH112URDE**GE Appliances · Endurewith ductless indoor unit ASYW12URDEGE Appliances1 ton12,000 Btu/h · Non-ducted103%1.9012.514,90027.515.0CEE 25CEE 26XcelES CC4212409457Non-ducted, up to 1.5 tons79.592%49%98%
24AUWR-36U3SAHISENSEwith ducted air handler HE35936+TDHisense2.5 tons29,400 Btu/h · Ducted85%2.089.424,20015.211.0XcelES CC21215333846Ducted, 2.5–3 tons78.979%77%81%
25EODA19H-4860AECOERwith ducted air handler EAHATN-48BAlso listed as EODA19H-4860AAEcoer4 tons47,000 Btu/h · Ducted72%2.109.534,40019.012.5CEE 25CEE 26Xcel18214303510Ducted, 3.5–4.5 tons78.669%75%92%

Download CSV of the cold-climate boardThis board with each model’s score and part percentiles.

How the cold-climate score works

Who qualifies, by size and duct type

A model qualifies when it keeps at least 70% of its 47°F heating capacity at 5°F and has all three ratings. Counts include every manufacturer; only QMID-verified manufacturers are ranked.
Qualifiers per peer group (a model sold ducted and ductless counts once in each type)
Peer groupModelsQualifyKeep < 70%No 5°F capacityRanked
Ducted, up to 1.5 tons95061425374264
Ducted, 2 tons940499302136267
Ducted, 2.5–3 tons2,060797834420397
Ducted, 3.5–4.5 tons2,074569904590290
Ducted, 5 tons and up3602421212219
Non-ducted, up to 1.5 tons2,7041,581826285678
Non-ducted, 2 tons69937523388181
Non-ducted, 2.5–3 tons1,177491479202232
Non-ducted, 3.5–4.5 tons47926416441136
Non-ducted, 5 tons and up321713016

Qualifies when its capacity retention at 5°F (capacity at 5°F as a share of capacity at 47°F) is at least 70% and Capacity retention at 5°F, COP at 5°F, HSPF2 are all rated. Score = the equal-weight mean of its peer percentiles on Capacity retention at 5°F, COP at 5°F, HSPF2 (share of the other models in its peer group it beats, 0–100), all from one certified pairing: in each duct type a model is sold in, its qualifying pairing of that type with the best score; equal scores (one decimal) go to the higher heating capacity at 5°F.