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Ranked by heat output at 5°f only

How much heat the unit can deliver when it is 5°F outside, in Btu per hour. Useful for comparing units. Whether it is enough for a particular house takes a load calculation. This list ranks by that one rating. For the units that hold up best in the cold overall, see the cold-climate picks.

Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated

Showing Ducted, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?

Top 10 by heat output at 5°f only: ducted, 3.5–4.5 tons

Ranked by this one rating, not an overall verdict. Every model here is the same size and type, so the numbers compare directly. Higher is better. One certified pairing per model.
  1. 1RP15AY60AJ2Nwith indoor coil D(A,C,E)60B4J+TDR and furnace R801V0755A21DZRheem4 tons · 45,000 Btu/h · DuctedTop 10%64,500 Btu/h
  2. 2BOVA-60MTB-M19Ewith ducted air handler AE*L+DM60A4Z+TXV+TDRBosch4 tons · 47,000 Btu/h · DuctedTop 10%64,000 Btu/h
  3. 3H5H0V60*K*AAA*with indoor coil D(A,C,E)61A3J+TDR and furnace *97CMN0602120BCarrier (sold as HEIL)4 tons · 50,000 Btu/h · DuctedTop 10%61,000 Btu/h
  4. 4SL22KLV-060-230A**with indoor coil D(A,C,E)60A4J+TDR and furnace SLP99UH110XV60CLennox4.5 tons · 51,500 Btu/h · DuctedTop 10%60,000 Btu/h
  5. 5RP15AY48AJ2Nwith ducted air handler AE*L+CM48B3J+TDRRheem (sold as RUUD)3.5 tons · 42,500 Btu/h · DuctedTop 10%57,000 Btu/h
  6. 6PUZ-AK60NLHZ2***with ducted air handler PVA-AA60NLMitsubishi Electric4.5 tons · 56,000 Btu/h · DuctedTop 10%57,000 Btu/h
  7. 75TCV0X61A1with ducted air handler 5TEMCD07BV51+TDRTraneAlso sold as American Standard 5A5V0X61A14 tons · 48,000 Btu/h · DuctedTop 10%55,500 Btu/h
  8. 8MOVA-60HDN10-M20Gwith ducted air handler MVME60C2MN10TAMideaAlso listed as MOVC-60HDN10-M20G4.5 tons · 53,500 Btu/h · DuctedTop 10%55,000 Btu/h
  9. 9AUW-60U3TH1with ducted air handler AUH-60UX3TEH5Hisense4.5 tons · 55,000 Btu/h · DuctedTop 10%55,000 Btu/h
  10. 10AOU-60U3T25Uwith ducted air handler AHU-60U3T25Hisense4.5 tons · 55,000 Btu/h · DuctedTop 10%55,000 Btu/h

Every ducted, 3.5–4.5 tons model, highest first

Top cold-climate picks, ducted 3.5–4.5 tons

These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.

Want this size class’s full distribution and peer percentiles? Switch to Advanced

What good looks like: ducted, 3.5–4.5 tons

Good is better than half of this size class, great is the top quarter, top is the top 10%. The scale comes from the class’s own ratings.

  • COP at 5°F

    Efficiency on a 5°F day

    How much heat the unit makes from each unit of electricity when it is 5°F outside.

    Good
    2.00+
    Great
    2.10+
    Top 10%
    2.36+

  • HSPF2

    Winter-long heating efficiency

    Heating efficiency over a whole winter, measured with a federal test.

    Good
    8.1+
    Great
    9.0+
    Top 10%
    10.4+

  • SEER2

    Summer-long cooling efficiency

    Cooling efficiency over a whole summer, measured with a federal test.

    Good
    15.9+
    Great
    18.0+
    Top 10%
    19.8+

Next steps

The advanced view adds the all-sizes boards, each qualifier’s peer percentiles, charts of every model in each size class, and the EER2 and heat output boards.

Open the advanced view