Skip to content
Rebate.Blue

AIRTEMP heat pump efficiency: 25 outdoor models compared

AIRTEMP has 25 heat pump outdoor models certified with this refrigerant group, in 58 AHRI-certified combinations. Each model is compared with models of the same size and duct type, so the scores below do not depend on which sizes AIRTEMP makes. AIRTEMP has no QMID (IRS Qualified Manufacturer ID) on file, so it is not ranked against other manufacturers.

New to heat pump ratings? The Simple view explains them in plain words →

ManufacturerData as of updated · sources

Outdoor models
25
AHRI certifications
58
Efficiency index
45%
Typical model vs same-size, same-type peers (22 models)
Meet CEE 2025
48%
12 models

How AIRTEMP compares with comparable models

For each rating: the share of same-size, same-type models that a typical model of this manufacturer beats (50% is typical), its rank, and the raw median for context. Raw medians are not comparable across manufacturers that make different sizes.
AIRTEMP against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of AIRTEMP’s own modelsAIRTEMP is strongest on capacity retention at 5°F (its typical model beats 65% of comparable models) and weakest on COP at 5°F (32%).
  • AIRTEMP
  • Middle half of its models
  • Other ranked manufacturers
AIRTEMP

Source: AHRI Directory, NEEP · as of

Average peer percentile of AIRTEMP’s models
RatingBeats comparable modelsRankRaw median
Efficiency index22 models scored45%Not ranked—
COP at 5°F23 models scored32%Not ranked1.81
Capacity retention at 5°F22 models scored65%Not ranked77%
HSPF230 models scored37%Not ranked8.5
SEER230 models scored38%Not ranked17.0
EER230 models scored44%Not ranked11.0
Heating capacity at 5°F22 models scored63%Not ranked19,800 Btu/h

Standards met

Share of AIRTEMP’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)48%12
CEE 2026 Tier 1 (Split ASHP)48%12
CEE Advanced Tier (Split ASHP)0%0
Xcel Energy Colorado cold-climate ASHP (2025)52%13
DOE Cold Climate Heat Pump Challenge0%0
ENERGY STAR Cold Climate32%8

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.
AIRTEMP’s models inside each size and duct typeShape: every model of the group · blue: the middle half of this manufacturer’s models there, median dot, 10th–90th percentile line
  • AIRTEMP (median, middle 50%, 10th–90th)
  • All models of the group
Ducted, up to 1.5 tons2.00884 modelsDucted, 2 tons2.00821 modelsDucted, 2.5–3 tons1.901,614 modelsDucted, 3.5–4.5 tons1.911,492 modelsNon-ducted, up to 1.5 tons1.902,417 modelsNon-ducted, 2 tons1.87611 modelsNon-ducted, 2.5–3 tons1.85975 modelsmedian

Source: AHRI Directory · as of

Share of comparable models beaten, per peer group
Size and duct typeModelsIndexCOP@5°FHSPF2SEER2
Ducted, up to 1.5 tons231%25%20%21%
Ducted, 2 tons353%21%40%39%
Ducted, 2.5–3 tons652%29%38%39%
Ducted, 3.5–4.5 tons463%25%39%39%
Non-ducted, up to 1.5 tons828%27%21%23%
Non-ducted, 2 tons257%40%48%58%
Non-ducted, 2.5–3 tons560%45%60%60%

Every AIRTEMP model in the market

AIRTEMP’s 30 models with a known size and duct type, over the shape of the whole catalog.
AIRTEMP models by size and ratingColoured: AIRTEMP · grey shapes: all 11,475 models · lines: catalog medians by size
  • AIRTEMP models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 30 airtemp models, each through its representative certification, in the colour of the rating shown. The grey shapes count all 11,475 models, half a ton at a time.
Show the data as a table
COP at 5°F by size and duct type (every model, by rated cooling capacity)
Duct type, sizeModels10th pct.25thMedian75th90th
Ducted, 0.5 tons1751.701.851.902.102.26
Ducted, 1 ton3401.851.902.002.402.65
Ducted, 1.5 tons7891.751.852.002.202.55
Ducted, 2 tons7821.731.802.002.102.33
Ducted, 2.5 tons7351.711.801.902.092.48
Ducted, 3 tons6521.681.701.902.062.36
Ducted, 3.5 tons6411.611.801.952.202.50
Ducted, 4 tons3671.701.801.912.022.52
Ducted, 4.5 tons5441.701.801.912.082.34
Ducted, 5 tons251.801.801.901.902.15
Non-ducted, 0.5 tons7171.751.811.972.102.19
Non-ducted, 1 ton1,0641.751.801.902.072.25
Non-ducted, 1.5 tons8861.801.801.872.072.21
Non-ducted, 2 tons5641.801.801.832.042.21
Non-ducted, 2.5 tons2751.801.811.841.862.03
Non-ducted, 3 tons5021.801.801.902.002.09
Non-ducted, 3.5 tons701.821.831.902.002.28
Non-ducted, 4 tons2631.801.801.982.002.10
Non-ducted, 4.5 tons1031.771.771.801.972.02
Non-ducted, 5 tons291.982.002.102.302.47

Source: AHRI Directory · as of

Top AIRTEMP models

Its top five cold-climate picks and its top five all-around models across sizes (both scores compare each model with models of its own size and duct type, so sizes compare), then, on each single rating, the model that beats the largest share of comparable models.

Cold-climate picks

Top 5 AIRTEMP cold-climate picks across sizes. 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.
# · Outdoor modelSize · typeCap. 5/47COP@5°FHSPF2Btu/h @5°FSEER2MeetsCombosAHRI ref.Compared withScore
1GXH24(7.0)FMK4DH-1AIRTEMP · Flex Match2 tons23,200 Btu/h · Non-ducted90%2.1010.021,60021.0CEE 25CEE 26XcelES CC3210276806Non-ducted, 2 tons76.1
2GXH42(12.3)FMK4DH-1AIRTEMP · Flex Match3 tons36,000 Btu/h · Non-ducted81%1.9210.032,40021.0CEE 25CEE 26XcelES CC3210276804Non-ducted, 2.5–3 tons73.7
3GXH18(5.3)FMK4DH-1AIRTEMP · Flex Match1.5 tons17,000 Btu/h · Non-ducted76%2.2110.013,60021.0CEE 25CEE 26XcelES CC3210276805Non-ducted, up to 1.5 tons73.1
4GXH36(10.6)FMK4DH-1AIRTEMP · Flex Match3 tons34,000 Btu/h · Non-ducted90%1.8210.032,40021.0CEE 25CEE 26XcelES CC3210276803Non-ducted, 2.5–3 tons63.8
5GXH30(8.8)FMK4DH-1AIRTEMP · Flex Match2.5 tons28,400 Btu/h · Non-ducted76%1.8410.022,80021.0CEE 25CEE 26XcelES CC3210276807Non-ducted, 2.5–3 tons63.4

All-around best

Top 5 AIRTEMP models on the all-around score across sizes. Score = 50% heating, the mean of its peer percentiles on COP at 5°F, Capacity retention at 5°F, HSPF2, plus 50% cooling, the mean of its peer percentiles on SEER2 and EER2 (share of the other models in its peer group it beats, 0–100). All five ratings are required; there is no minimum heat kept at 5°F. In each duct type a model is sold in, it is scored on its pairing of that type with the best score; equal scores (one decimal) go to the higher cold-climate score, then the higher heating capacity at 5°F.
# · Outdoor modelSize · typeCap. 5/47COP@5°FHSPF2SEER2EER2MeetsCombosAHRI ref.Compared withScoreHeating halfCooling halfCold-climate score
1GXH24(7.0)FMK4DH-1AIRTEMP · Flex Match2 tons23,200 Btu/h · Non-ducted90%2.1010.021.012.5CEE 25CEE 26XcelES CC3210276806Non-ducted, 2 tons71.576.166.876.1
2GXH42(12.3)FMK4DH-1AIRTEMP · Flex Match3 tons36,000 Btu/h · Non-ducted81%1.9210.021.012.0CEE 25CEE 26XcelES CC3210276804Non-ducted, 2.5–3 tons70.273.766.773.7
3GXH30(8.8)FMK4DH-1AIRTEMP · Flex Match2.5 tons28,400 Btu/h · Non-ducted76%1.8410.021.012.5CEE 25CEE 26XcelES CC3210276807Non-ducted, 2.5–3 tons69.263.475.063.4
4GXH36(10.6)FMK4DH-1AIRTEMP · Flex Match3 tons34,000 Btu/h · Non-ducted90%1.8210.021.012.0CEE 25CEE 26XcelES CC3210276803Non-ducted, 2.5–3 tons65.363.866.763.8
5GXH48-60MSK4DHAIRTEMP · Ultra Side Dischargewith ducted air handler GMH48-**MSK4DH14 tons48,000 Btu/h · Ducted81%1.809.017.011.0CEE 25CEE 26XcelES CC6206724410Ducted, 3.5–4.5 tons63.358.168.458.1

Best model on each rating

AIRTEMP’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FGXH18(5.3)FMK4DH-12.21Non-ducted, up to 1.5 tons89%210276805
Capacity retention at 5°FGXH30(8.8)FMK4DH-189%Ducted, 2.5–3 tons85%210276820
HSPF2GXH36(10.6)FMK4DH-110.0Non-ducted, 2.5–3 tons82%210276803
SEER2GXH12(3.5)LSK4DH224.0Non-ducted, up to 1.5 tons83%210534162
EER2GXH30(8.8)FMK4DH-112.5Non-ducted, 2.5–3 tons84%210276807
Heating capacity at 5°FGXH18(5.3)LSK4DH214,500 Btu/hNon-ducted, up to 1.5 tons86%212925557

All 25 AIRTEMP models in Explore

AIRTEMP size class by size class: cold-climate and all-around

Its best model on each board in every size and duct type it makes. Both scores are 0–100 against every model of that size class (the line on each bar is 50, the typical model there). Cold-climate picks must keep at least 70% of their heat at 5°F; the all-around score needs all five ratings and has no such bar.
AIRTEMP: best cold-climate pick and best all-around model per size and duct type, with how many of its models are on each board (top 5 and 5 per class are in the snapshot)
Size and duct typeCold-climate pickCold-climate score, best modelAll-around bestAll-around score, best model
Ducted, up to 1.5 tons35.6(50 is the typical model of its size class)GXH18(5.3)FMK4DH-11 of 2 models qualify · AHRI 21027681831.2(50 is the typical model of its size class)GXH18(5.3)FMK4DH-11 of 2 models have all five ratings · AHRI 210276818
Ducted, 2 tons50.1(50 is the typical model of its size class)GXH24(7.0)FMK4DH-11 of 2 models qualify · AHRI 21027681960.8(50 is the typical model of its size class)GXH24-36MSK4DHwith ducted air handler GMH24-**MSK4DH12 of 3 models have all five ratings · AHRI 206724408
Ducted, 2.5–3 tons55.3(50 is the typical model of its size class)GXH24-36MSK4DHwith ducted air handler GMH**-36MSK4DH14 of 7 models qualify · AHRI 20672440953.1(50 is the typical model of its size class)GXH30(8.8)FMK4DH-13 of 6 models have all five ratings · AHRI 210276820
Ducted, 3.5–4.5 tons58.1(50 is the typical model of its size class)GXH48-60MSK4DHwith ducted air handler GMH48-**MSK4DH11 of 4 models qualify · AHRI 20672441063.3(50 is the typical model of its size class)GXH48-60MSK4DHwith ducted air handler GMH48-**MSK4DH11 of 4 models have all five ratings · AHRI 206724410
Non-ducted, up to 1.5 tons73.1(50 is the typical model of its size class)GXH18(5.3)FMK4DH-17 of 8 models qualify · AHRI 21027680558.0(50 is the typical model of its size class)GXH18(5.3)FMK4DH-18 of 8 models have all five ratings · AHRI 210276805
Non-ducted, 2 tons76.1(50 is the typical model of its size class)GXH24(7.0)FMK4DH-12 of 2 models qualify · AHRI 21027680671.5(50 is the typical model of its size class)GXH24(7.0)FMK4DH-12 of 2 models have all five ratings · AHRI 210276806
Non-ducted, 2.5–3 tons73.7(50 is the typical model of its size class)GXH42(12.3)FMK4DH-15 of 5 models qualify · AHRI 21027680470.2(50 is the typical model of its size class)GXH42(12.3)FMK4DH-15 of 5 models have all five ratings · AHRI 210276804

All-around board, every manufacturer

Newest AIRTEMP certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified AIRTEMP outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
GXH48-60MSK4DHAIRTEMPwith ducted air handler H,NE88960+TD4 tons50,500 Btu/h · Ducted1.8061%8.515.2CEE 25CEE 26XcelES CC6214437584
GXH24-36MSK4DHAIRTEMPwith ducted air handler H,NE7J936+TD2.5 tons31,000 Btu/h · Ducted1.7866%8.415.0CEE 25CEE 26XcelES CC6214437582
VSH3BE4M1SP18KAIRTEMPwith ducted air handler B64BMM018K-A+TXV KIT1.5 tons17,400 Btu/h · Ducted——7.514.3None5213880749
GXH18(5.3)LSK4DH2AIRTEMPwith ductless indoor unit GKH18(5.3)FMK4DH11.5 tons18,000 Btu/h · Non-ducted1.9381%8.519.0CEE 25CEE 26Xcel2212925557
GXH12(3.5)LSK4DH2AIRTEMPwith ductless indoor unit GKH12(3.5)FMK4DH11 ton12,000 Btu/h · Non-ducted1.9077%8.524.0CEE 25CEE 26XcelES CC2212925554

Shares hardware with

Manufacturers whose models are the same equipment under another badge. About OEM families

Compare AIRTEMP

Manufacturers of a similar size, side by side.

Compare with any manufacturer

AIRTEMP includes these brand names as listed in AHRI: AIRTEMP. Standards are checked against published thresholds; program rules beyond ratings are not checked.