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Della vs ForestAir: heat pump ratings compared

Against heat pumps of the same size and type, a typical Della model beats 39% and a typical ForestAir model 57%. ForestAir rates higher overall.

Covers older R-410A heat pumps, no longer installed new. See models sold today · Updated

Della

39%

of similar heat pumps beaten by its typical model

Well below average

22 models listed

ForestAir

57%

of similar heat pumps beaten by its typical model

Above average

22 models listed

Rating by ratingEach bar is the share of same-size, same-type heat pumps that a typical model beats, so the two brands compare fairly even if they make different sizes.
  • Efficiency on a 5°F dayCOP at 5°FDella: Beats 42%ForestAir: Beats 43%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FDella: Beats 37%ForestAir: Beats 54%
  • Winter-long heating efficiencyHSPF2Della: Beats 23%ForestAir: Beats 34%
  • Summer-long cooling efficiencySEER2Della: Beats 35%ForestAir: Beats 58%
  • Hot-day cooling efficiencyEER2Della: Beats 28%ForestAir: Beats 46%

Average (50%)Dashed outline: the other brand, for comparison

Want ranks, distributions per size class and cold-weather curves? Switch to Advanced

Rebate standards

Share of each brand’s models that meet the level. Programs can have other rules too.

  • CEE 2025

    Della
    55%
    ForestAir
    68%

  • Xcel CC

    Della
    36%
    ForestAir
    55%

  • CEE Advanced

    Della
    0%
    ForestAir
    0%

  • ENERGY STAR CC

    Della
    18%
    ForestAir
    14%

Top cold-climate picks, ductless up to 1.5 tons

Only units that keep at least 70% of their heat at 5°F, ranked on heat kept, efficiency at 5°F and seasonal efficiency (HSPF2), against units their size.

Showing Ductless, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

Della

  1. 1048-TP-12K2V-23S-OUTwith ductless indoor unit 048-TP-12K2V-23S-INDella1 ton · 12,000 Btu/h · DuctlessKeeps 76% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    76% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.18 (COP at 5°F)
    Great
    Seasonal efficiency
    9.5 (HSPF2)
    Good
    68.8score / 100
  2. 2048-TP-12K1V-22S-OUTwith ductless indoor unit 048-TP-12K1V-22S-INDella1 ton · 12,000 Btu/h · DuctlessKeeps 75% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    75% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.19 (COP at 5°F)
    Great
    Seasonal efficiency
    9.0 (HSPF2)
    Below the middle
    62.5score / 100
  3. 3048-TP-9K2V-23S-OUTwith ductless indoor unit 048-TP-9K2V-23S-INDella1 ton · 9,000 Btu/h · DuctlessKeeps 77% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    77% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.03 (COP at 5°F)
    Good
    Seasonal efficiency
    9.2 (HSPF2)
    Good
    61.3score / 100

ForestAir

  1. 1FA-H12-D23TL/O-ESwith ductless indoor unit FA-H12-D23TL/I-ESForestAir1 ton · 12,000 Btu/h · DuctlessKeeps 76% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    76% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.18 (COP at 5°F)
    Great
    Seasonal efficiency
    9.5 (HSPF2)
    Good
    68.8score / 100
  2. 2FA-H12-A23TL/O-ESwith ductless indoor unit FA-H12-A23TL/I-ESForestAir1 ton · 12,000 Btu/h · DuctlessKeeps 75% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    75% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.19 (COP at 5°F)
    Great
    Seasonal efficiency
    9.0 (HSPF2)
    Below the middle
    62.5score / 100
  3. 3FA-H09-D23TL/O-ESwith ductless indoor unit FA-H09-D23TL/I-ESForestAir1 ton · 9,000 Btu/h · DuctlessKeeps 77% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    77% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.03 (COP at 5°F)
    Good
    Seasonal efficiency
    9.2 (HSPF2)
    Good
    61.3score / 100

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

Next steps

The advanced view adds ranks, both brands’ models inside every size class, standout models per rating and cold-weather curves.

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