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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
1AOUH09KTAP1FUJITSU · AIRSTAGE H-Serieswith ductless indoor unit ASUH09KTASFujitsu1 ton9,000 Btu/h · Non-ducted142%2.4814.017,00033.519.1CEE 25CEE 26CEE AdvXcelDOEES CC4216018255Non-ducted, up to 1.5 tons98.599%98%98%
2AVW-60F3DAH2HisenseHisense5 tons60,000 Btu/h · Non-ducted100%2.3011.063,00021.511.0CEE 25CEE 26CEE AdvXcelDOE3216618254Non-ducted, 5 tons and up98.299%97%98%
3CHV6-RS60URBMHHCooper & HunterCooper&Hunter5 tons60,000 Btu/h · Non-ducted100%2.3011.063,00021.511.0CEE 25CEE 26CEE AdvXcelDOE3217026559Non-ducted, 5 tons and up98.299%97%98%
4YPAS30BLFASDQ1YORK · airCore700with ductless indoor unit YPCIB30UFA1DQYork2.5 tons30,000 Btu/h · Non-ducted103%2.4012.032,80020.313.9CEE 25CEE 26CEE AdvXcelDOEES CC3218694248Non-ducted, 2.5–3 tons97.594%99%100%
5MUZ-FX06NLHZ***Mitsubishi Electric · M-Serieswith ductless indoor unit MSZ-FX06NLAlso listed as MUZ-FX06NLHZ2Mitsubishi Electric0.5 tons6,000 Btu/h · Non-ducted140%2.3813.012,60035.021.5CEE 25CEE 26CEE AdvXcelDOEES CC1215611124Non-ducted, up to 1.5 tons97.599%96%97%
6MOX230-06HFN10-M1MDV · MSEPBwith ductless indoor unit MSEPB-06HRFN10-M1Midea0.5 tons6,000 Btu/h · Non-ducted138%2.4112.58,30025.018.1CEE 25CEE 26CEE AdvXcelDOEES CC1215865890Non-ducted, up to 1.5 tons97.599%98%96%
7BMS500-AAS009-1CSXRDBOSCH · BM Serieswith ductless indoor unit BMS500-AAU006-1AHWXDBosch0.5 tons6,000 Btu/h · Non-ducted138%2.4112.58,30025.018.1CEE 25CEE 26CEE AdvXcelDOEES CC6217656832Non-ducted, up to 1.5 tons97.599%98%96%
837MAHAQ06AA3CARRIER · 45M Serieswith ductless indoor unit 45MAHAQ06XA3Also sold as Midea 37MAHAQ06AA3, Midea D5CSHAH06AAK, MDV MOX230-06HFN10-M1X, Arcoaire D5CSHAH06AAKCarrier0.5 tons6,000 Btu/h · Non-ducted110%2.4014.87,70025.718.0CEE 25CEE 26CEE AdvXcelDOEES CC13215323742Non-ducted, up to 1.5 tons96.794%97%99%
9BZ33-HYP06OUT2-454-G3-PBreeze33 · BZ33 Serieswith ductless indoor unit BZ33-HYP06WALL2-454-G3-PBreeze330.5 tons6,000 Btu/h · Non-ducted110%2.4014.87,70025.518.0CEE 25CEE 26CEE AdvXcelDOEES CC2215449757Non-ducted, up to 1.5 tons96.794%97%99%
10MOS06H2BH0AINNOVAIR · MHW Serieswith ductless indoor unit MHW06H2BHRBInnovair0.5 tons6,000 Btu/h · Non-ducted110%2.4014.87,70025.518.0CEE 25CEE 26CEE AdvXcelDOEES CC1215725442Non-ducted, up to 1.5 tons96.794%97%99%
11SENA-06HF-OGSENVILLE · SENA Serieswith ductless indoor unit SENA-06HF-IGGSenville0.5 tons6,000 Btu/h · Non-ducted110%2.4014.87,70025.518.0CEE 25CEE 26CEE AdvXcelDOEES CC2215735294Non-ducted, up to 1.5 tons96.794%97%99%
12BMS626HHYCBLUERIDGE · BMS Serieswith ductless indoor unit BMC6HHYWAlso listed as BXS5A06UC0BlueRidge0.5 tons6,000 Btu/h · Non-ducted110%2.4014.87,70025.518.0CEE 25CEE 26CEE AdvXcelDOEES CC3215853901Non-ducted, up to 1.5 tons96.794%97%99%
13A-VHP06SA-1COMFORT-AIRE · A-VHP Serieswith ductless indoor unit B-VHP06SA-1Lennox0.5 tons6,000 Btu/h · Non-ducted110%2.4014.87,70025.518.0CEE 25CEE 26CEE AdvXcelDOEES CC4216097104Non-ducted, up to 1.5 tons96.794%97%99%
14KUMXA421ALG · KUMXA421ALG3.5 tons42,000 Btu/h · Non-ducted100%2.2911.048,00021.513.8CEE 25CEE 26CEE AdvXcelDOEES CC3215402347Non-ducted, 3.5–4.5 tons95.998%98%92%
15RD18AY48AJVCRHEEMwith indoor coil D(A,C,E)60B4J+TDR and furnace R801V0754A17DZRheem3.5 tons39,000 Btu/h · Ducted125%2.8010.050,00017.09.8CEE 25CEE 26CEE AdvXcelDOEES CC1,022218827549Ducted, 2.5–3 tons95.2100%99%87%
16DRA1H06S2ADurastar · DRA Serieswith ductless indoor unit DRAL0612F2ADurastar0.5 tons6,500 Btu/h · Non-ducted109%2.4012.08,10022.015.0CEE 25CEE 26CEE AdvXcelDOEES CC3215359243Non-ducted, up to 1.5 tons94.493%97%93%
175TWV0X48A1TRANEwith indoor coil D(A,C,E)60B4J+TDR and furnace S9V2D120U5PSC+LRPTrane3.5 tons41,500 Btu/h · Ducted108%2.819.549,50020.211.7CEE 25CEE 26CEE AdvXcelDOEES CC207216794596Ducted, 3.5–4.5 tons93.0100%99%81%
18AR15DXDACWKXSAMSUNG · WindFree - Max heat (RAC)with ductless indoor unit AR15DXDABWKNAlso listed as AR15DXDABWKXSamsung1.5 tons15,000 Btu/h · Non-ducted104%2.5011.015,60023.014.6CEE 25CEE 26CEE AdvXcelDOEES CC1215222778Non-ducted, up to 1.5 tons92.192%98%86%
19MHPC-H-009BSBAC PRO · MHPC Serieswith ductless indoor unit MCON-H-009BBBGree1 ton9,000 Btu/h · Non-ducted96%2.2713.98,60026.016.2CEE 25CEE 26XcelES CC5216497938Non-ducted, up to 1.5 tons89.580%91%98%
20O-HH-24-HP-C-230C-OMRCOOL · O-HH Serieswith ductless indoor unit CASSETTE24HP-230C-OAlso listed as O-ES-24-HP-C-230C-O1MRCOOL2 tons23,400 Btu/h · Non-ducted95%2.2311.623,80020.712.0CEE 25CEE 26XcelES CC3216032567Non-ducted, 2 tons89.490%87%91%
21DH9VSA241CA*DAIKIN · DH9VSAwith ducted air handler CAHEA3630C3A*+MBVK16CH*X00AAlso sold as Amana AZV9SA241CA, Goodman GZV9SA241CADaikin2 tons24,000 Btu/h · Ducted100%2.4010.024,00021.012.2CEE 25CEE 26CEE AdvXcelDOEES CC47216699791Ducted, 2 tons89.294%89%85%
22NS21H24MA5-**AGEwith indoor coil D(A,C,E)24C3Z+TXV+TDR and furnace NF96U070S3BGE Appliances2 tons21,400 Btu/h · Ducted109%2.739.525,60019.012.5CEE 25CEE 26CEE AdvXcelDOEES CC96218792657Ducted, 2 tons89.199%97%72%
23UXH48-60MSK3IHGibson · E Serieswith ducted air handler UMD60MSK3IHNortek Global HVAC4.5 tons53,000 Btu/h · Ducted100%2.1010.554,00018.511.5CEE 25CEE 26CEE AdvXcelDOEES CC14217138209Ducted, 3.5–4.5 tons85.195%69%91%
24AM3-H24/2DR3BAUX · C-SeriesAlso listed as ASUM24HPMULOAUX2 tons24,000 Btu/h · Non-ducted108%2.1010.526,00024.013.0CEE 25CEE 26CEE AdvXcelDOEES CC1214097943Non-ducted, 2 tons84.498%71%85%
25FPHFR48A3DFriedrich · Floating Air Pro Xwith ducted air handler FPHFA48A3DAlso sold as Rheem FPHFR48A3DFriedrich4 tons48,000 Btu/h · Ducted100%2.1010.048,00019.011.7CEE 25CEE 26CEE AdvXcelDOEES CC17217508872Ducted, 3.5–4.5 tons83.995%69%87%

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 tons1,8241,42036142412
Ducted, 2 tons1,16876034662374
Ducted, 2.5–3 tons2,1901,053850287547
Ducted, 3.5–4.5 tons2,5811,258944379621
Ducted, 5 tons and up4797926213864
Non-ducted, up to 1.5 tons3,5682,6727161581,125
Non-ducted, 2 tons90365519850306
Non-ducted, 2.5–3 tons1,14087321055392
Non-ducted, 3.5–4.5 tons569497692238
Non-ducted, 5 tons and up863254030

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.