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THERMOFLUX heat pump efficiency: 9 outdoor models compared

THERMOFLUX has 9 heat pump outdoor models certified with this refrigerant group, in 9 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 THERMOFLUX makes. THERMOFLUX 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
9
AHRI certifications
9
Efficiency index
43%
Typical model vs same-size, same-type peers (9 models)
Meet CEE 2025
44.4%
4 models

How THERMOFLUX 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.
THERMOFLUX against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of THERMOFLUX’s own modelsTHERMOFLUX is strongest on heating capacity at 5°F (its typical model beats 67% of comparable models) and weakest on EER2 (22%).
  • THERMOFLUX
  • Middle half of its models
  • Other ranked manufacturers
THERMOFL…

Source: AHRI Directory, NEEP · as of

Average peer percentile of THERMOFLUX’s models
RatingBeats comparable modelsRankRaw median
Efficiency index9 models scored43%Not ranked—
COP at 5°F9 models scored25%Not ranked1.80
Capacity retention at 5°F9 models scored66%Not ranked75%
HSPF29 models scored61%Not ranked8.1
SEER29 models scored50%Not ranked15.2
EER29 models scored22%Not ranked10.0
Heating capacity at 5°F9 models scored67%Not ranked36,000 Btu/h

Standards met

Share of THERMOFLUX’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)44.4%4
CEE 2026 Tier 1 (Split ASHP)44.4%4
CEE Advanced Tier (Split ASHP)0%0
Xcel Energy Colorado cold-climate ASHP (2025)44.4%4
DOE Cold Climate Heat Pump Challenge0%0
ENERGY STAR Cold Climate44.4%4

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.
THERMOFLUX’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
  • THERMOFLUX (median, middle 50%, 10th–90th)
  • All models of the group
Ducted, 2 tons2.001,090 modelsDucted, 2.5–3 tons2.001,909 modelsDucted, 3.5–4.5 tons2.002,224 modelsmedian

Source: AHRI Directory · as of

Share of comparable models beaten, per peer group
Size and duct typeModelsIndexCOP@5°FHSPF2SEER2
Ducted, 2 tons247%25%60%52%
Ducted, 2.5–3 tons337%22%57%45%
Ducted, 3.5–4.5 tons446%27%65%52%

Every THERMOFLUX model in the market

THERMOFLUX’s 9 models with a known size and duct type, over the shape of the whole catalog.
THERMOFLUX models by size and ratingColoured: THERMOFLUX · grey shapes: all 14,508 models · lines: catalog medians by size
  • THERMOFLUX models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 9 thermoflux models, each through its representative certification, in the colour of the rating shown. The grey shapes count all 14,508 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 tons8261.641.711.751.852.24
Ducted, 1 ton4071.801.902.052.412.45
Ducted, 1.5 tons9921.751.862.002.172.40
Ducted, 2 tons9991.751.862.002.182.30
Ducted, 2.5 tons1,0401.701.802.002.102.36
Ducted, 3 tons6961.801.902.002.102.42
Ducted, 3.5 tons8651.701.802.002.102.46
Ducted, 4 tons7261.801.862.002.122.41
Ducted, 4.5 tons6901.701.801.902.102.20
Ducted, 5 tons861.892.002.102.102.10
Non-ducted, 0.5 tons1,1861.751.801.902.002.22
Non-ducted, 1 ton1,3431.801.801.992.102.21
Non-ducted, 1.5 tons1,2611.801.802.002.102.31
Non-ducted, 2 tons7611.801.982.002.102.30
Non-ducted, 2.5 tons4031.801.852.002.002.10
Non-ducted, 3 tons4731.901.982.002.032.20
Non-ducted, 3.5 tons2802.002.002.002.052.10
Non-ducted, 4 tons2041.962.002.052.102.11
Non-ducted, 4.5 tons781.901.911.952.012.01
Non-ducted, 5 tons841.992.002.052.202.20

Source: AHRI Directory · as of

Top THERMOFLUX 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 THERMOFLUX 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
1TMFS48HDI2NAJ0H26THERMOFLUX · Heat Seriewith ducted air handler TMFS48IDI2NAJ0H264 tons48,000 Btu/h · Ducted100%1.859.548,00018.0CEE 25CEE 26XcelES CC1218788000Ducted, 3.5–4.5 tons69.4
2TMFS24HDI2NAJ0H26THERMOFLUX · Heat Seriewith ducted air handler TMFS24IDI2NAJ0H262 tons24,000 Btu/h · Ducted100%1.8510.024,00019.0CEE 25CEE 26XcelES CC1218787998Ducted, 2 tons68.9
3TMFS55HDI2NAJ0H26THERMOFLUX · Heat Seriewith ducted air handler TMFS55IDI2NAJ0H264.5 tons54,000 Btu/h · Ducted93%1.859.550,00017.0CEE 25CEE 26XcelES CC1218788001Ducted, 3.5–4.5 tons66.4
4TMFS36HDI2NAJ0H26THERMOFLUX · Heat Seriewith ducted air handler TMFS36IDI2NAJ0H263 tons36,000 Btu/h · Ducted100%1.859.536,00018.0CEE 25CEE 26XcelES CC1218787999Ducted, 2.5–3 tons64.5
5TMFT48TDI2NAF2H26THERMOFLUXwith ducted air handler TMFT48IDI2NAF2H264 tons48,000 Btu/h · Ducted75%1.808.136,00015.2None1218788004Ducted, 3.5–4.5 tons44.1

All-around best

Top 5 THERMOFLUX 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
1TMFS24HDI2NAJ0H26THERMOFLUX · Heat Seriewith ducted air handler TMFS24IDI2NAJ0H262 tons24,000 Btu/h · Ducted100%1.8510.019.012.0CEE 25CEE 26XcelES CC1218787998Ducted, 2 tons70.068.971.168.9
2TMFS48HDI2NAJ0H26THERMOFLUX · Heat Seriewith ducted air handler TMFS48IDI2NAJ0H264 tons48,000 Btu/h · Ducted100%1.859.518.011.0CEE 25CEE 26XcelES CC1218788000Ducted, 3.5–4.5 tons65.069.460.669.4
3TMFS36HDI2NAJ0H26THERMOFLUX · Heat Seriewith ducted air handler TMFS36IDI2NAJ0H263 tons36,000 Btu/h · Ducted100%1.859.518.011.0CEE 25CEE 26XcelES CC1218787999Ducted, 2.5–3 tons57.964.551.364.5
4TMFS55HDI2NAJ0H26THERMOFLUX · Heat Seriewith ducted air handler TMFS55IDI2NAJ0H264.5 tons54,000 Btu/h · Ducted93%1.859.517.010.0CEE 25CEE 26XcelES CC1218788001Ducted, 3.5–4.5 tons54.966.443.566.4
5TMFT48TDI2NAF2H26THERMOFLUXwith ducted air handler TMFT48IDI2NAF2H264 tons48,000 Btu/h · Ducted75%1.808.115.29.0None1218788004Ducted, 3.5–4.5 tons34.544.124.944.1

Best model on each rating

THERMOFLUX’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FTMFS48HDI2NAJ0H261.85Ducted, 3.5–4.5 tons32%218788000
Capacity retention at 5°FTMFS48HDI2NAJ0H26100%Ducted, 3.5–4.5 tons94%218788000
HSPF2TMFS24HDI2NAJ0H2610.0Ducted, 2 tons81%218787998
SEER2TMFS48HDI2NAJ0H2618.0Ducted, 3.5–4.5 tons76%218788000
EER2TMFS24HDI2NAJ0H2612.0Ducted, 2 tons60%218787998
Heating capacity at 5°FTMFS55HDI2NAJ0H2650,000 Btu/hDucted, 3.5–4.5 tons91%218788001

All 9 THERMOFLUX models in Explore

THERMOFLUX 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.
THERMOFLUX: 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, 2 tons68.9(50 is the typical model of its size class)TMFS24HDI2NAJ0H26with ducted air handler TMFS24IDI2NAJ0H261 of 2 models qualify · AHRI 21878799870.0(50 is the typical model of its size class)TMFS24HDI2NAJ0H26with ducted air handler TMFS24IDI2NAJ0H262 of 2 models have all five ratings · AHRI 218787998
Ducted, 2.5–3 tons64.5(50 is the typical model of its size class)TMFS36HDI2NAJ0H26with ducted air handler TMFS36IDI2NAJ0H261 of 3 models qualify · AHRI 21878799957.9(50 is the typical model of its size class)TMFS36HDI2NAJ0H26with ducted air handler TMFS36IDI2NAJ0H263 of 3 models have all five ratings · AHRI 218787999
Ducted, 3.5–4.5 tons69.4(50 is the typical model of its size class)TMFS48HDI2NAJ0H26with ducted air handler TMFS48IDI2NAJ0H264 of 4 models qualify · AHRI 21878800065.0(50 is the typical model of its size class)TMFS48HDI2NAJ0H26with ducted air handler TMFS48IDI2NAJ0H264 of 4 models have all five ratings · AHRI 218788000

All-around board, every manufacturer

Newest THERMOFLUX certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified THERMOFLUX outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
TMFT36TDI2NAF2H26THERMOFLUXwith ducted air handler TMFT36IDI2NAF2H263 tons36,000 Btu/h · Ducted1.8064%8.115.2None1218806025
TMFT55TDI2NAF2H26THERMOFLUXwith ducted air handler TMFT55IDI2NAF2H264.5 tons54,000 Btu/h · Ducted1.8074%8.114.3None1218788005
TMFT48TDI2NAF2H26THERMOFLUXwith ducted air handler TMFT48IDI2NAF2H264 tons48,000 Btu/h · Ducted1.8075%8.115.2None1218788004
THH36TDI2NAF2H26THERMOFLUXwith ducted air handler THH36IDI2NAF2H263 tons36,000 Btu/h · Ducted1.8064%8.115.2None1218788003
TMFT24TDI2NAF2H26THERMOFLUXwith ducted air handler TMFT24IDI2NAF2H262 tons24,000 Btu/h · Ducted1.8067%8.115.2None1218788002

Shares hardware with

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

No shared hardware found for THERMOFLUX in this group.

Compare THERMOFLUX

Manufacturers of a similar size, side by side.

Compare with any manufacturer

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