COSTWAY heat pumps: how do their ratings compare?

A typical COSTWAY heat pump beats 46% of similar heat pumps (same size and type), which is about average. COSTWAY has 47 heat pump models in this list.

Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated Oct 10, 2026

Overall score

46%

of similar heat pumps beaten by its typical model

About average

Ranked 26 among brands with a QMID on file. Based on 42 models with every rating.

COSTWAY, rating by ratingStrongest on efficiency on a 5°f day (beats 57%), weakest on heating power kept at 5°f (beats 35%).

Efficiency on a 5°F dayCOP at 5°FBeats 57%
Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 35%
Winter-long heating efficiencyHSPF2Beats 45%
Summer-long cooling efficiencySEER2Beats 49%
Hot-day cooling efficiencyEER2Beats 36%

Average (50%)

Each bar: the share of similar heat pumps a typical model beats on that rating.

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Rebate standards

Share of this brand’s models that meet the efficiency levels rebate programs use. Programs can have other rules too.

64%
meet CEE 2025 Tier 1, the level many utility rebates use.
30 models. All brands: 57%.
See them
43%
meet Xcel Energy Colorado’s cold-climate rebate levels.
20 models. All brands: 53%.
See them
0%
reach the cold-climate tier: full heating output and a COP of 2.1 or more at 5°F.
None of its models yet. All brands: 3%.

COSTWAY all-around best, by size

Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.

Showing Ducted, 2.5–3 tons (27,000–38,999 Btu/h cooling), the most-listed ducted size. Pick yours above. What size is my system?

4 of COSTWAY’s 4 models of this size and type have all five ratings.

1FP10982USwith ducted air handler FP10985USCOSTWAY3 tons · 34,000 Btu/h · DuctedCold-climate pick, score 64.8Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
70% (Capacity at 5°F vs 47°F)
Below the middle
Efficiency at 5°F
2.10 (COP at 5°F)
Great
Winter efficiency
9.0 (HSPF2)
Good
Cooling efficiency
18.6 (SEER2)
Great
Hot-day cooling
11.7 (EER2)
Good
67.3score / 100Heating 65 · Cooling 70
2FP11135US*COSTWAY3 tons · 34,000 Btu/h · DuctedCold-climate pick, score 62.3Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
72% (Capacity at 5°F vs 47°F)
Good
Efficiency at 5°F
1.90 (COP at 5°F)
Below the middle
Winter efficiency
10.5 (HSPF2)
Top 10%
Cooling efficiency
20.5 (SEER2)
Top 10%
Hot-day cooling
11.0 (EER2)
Below the middle
64.0score / 100Heating 62 · Cooling 66
3FP11134US*COSTWAY2.5 tons · 27,000 Btu/h · DuctedCold-climate pick, score 49.8Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
70% (Capacity at 5°F vs 47°F)
Good
Efficiency at 5°F
1.88 (COP at 5°F)
Below the middle
Winter efficiency
9.0 (HSPF2)
Good
Cooling efficiency
21.0 (SEER2)
Top 10%
Hot-day cooling
11.1 (EER2)
Below the middle
59.6score / 100Heating 50 · Cooling 69
4FP11019USwith ducted air handler FP11022USCOSTWAY3 tons · 34,000 Btu/h · DuctedCold-climate pick, score 55.4Meets CEE 2025, CEE 2026, Xcel CC
Heat kept at 5°F
76% (Capacity at 5°F vs 47°F)
Good
Efficiency at 5°F
1.90 (COP at 5°F)
Below the middle
Winter efficiency
9.0 (HSPF2)
Good
Cooling efficiency
19.0 (SEER2)
Great
Hot-day cooling
10.0 (EER2)
Below the middle
51.6score / 100Heating 55 · Cooling 48

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

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