GENERALLUX STAR heat pumps: how do their ratings compare?

A typical GENERALLUX STAR heat pump beats 50% of similar heat pumps (same size and type), which is about average. GENERALLUX STAR has 6 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 11, 2026

Overall score

50%

of similar heat pumps beaten by its typical model

About average

GENERALLUX STAR has no QMID (the manufacturer ID the 25C tax credit needs) on file, so it is not ranked against other brands. Based on 6 models with every rating.

GENERALLUX STAR, rating by ratingStrongest on heating power kept at 5°f (beats 60%), weakest on winter-long heating efficiency (beats 42%).

Efficiency on a 5°F dayCOP at 5°FBeats 55%
Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 60%
Winter-long heating efficiencyHSPF2Beats 42%
Summer-long cooling efficiencySEER2Beats 48%
Hot-day cooling efficiencyEER2Beats 47%

Average (50%)

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

Want GENERALLUX STAR’s ranks and its models inside every size class? Switch to Advanced

Rebate standards

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

100%
meet CEE 2025 Tier 1, the level many utility rebates use.
6 models. All brands: 57%.
See them
83%
meet Xcel Energy Colorado’s cold-climate rebate levels.
5 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%.

GENERALLUX STAR all-around best, by size

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

Showing Ductless, Up to 1.5 tons (under 21,000 Btu/h cooling), the most-listed ducted size. Pick yours above. What size is my system?

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

1GNS12HCH23R454Owith ductless indoor unit GNS12HCH23R454IGENERALLUX STAR1 ton · 12,000 Btu/h · DuctlessCold-climate pick, score 68.4Meets CEE 2025, CEE 2026, Xcel CC
Heat kept at 5°F
92% (Capacity at 5°F vs 47°F)
Great
Efficiency at 5°F
2.00 (COP at 5°F)
Good
Winter efficiency
10.0 (HSPF2)
Good
Cooling efficiency
23.0 (SEER2)
Good
Hot-day cooling
12.3 (EER2)
Good
64.1score / 100Heating 68 · Cooling 60
2GNS18HCH21R454Owith ductless indoor unit GNS18HCH21R454IGENERALLUX STAR1.5 tons · 18,000 Btu/h · DuctlessCold-climate pick, score 65.0Meets CEE 2025, CEE 2026, Xcel CC
Heat kept at 5°F
100% (Capacity at 5°F vs 47°F)
Great
Efficiency at 5°F
1.90 (COP at 5°F)
Below the middle
Winter efficiency
10.0 (HSPF2)
Good
Cooling efficiency
21.0 (SEER2)
Below the middle
Hot-day cooling
13.0 (EER2)
Good
60.2score / 100Heating 65 · Cooling 55
3GNS18HCH21R32Owith ductless indoor unit GNS18HCH21R32IGENERALLUX STAR1.5 tons · 18,000 Btu/h · DuctlessCold-climate pick, score 69.0Meets CEE 2025, CEE 2026, Xcel CC
Heat kept at 5°F
76% (Capacity at 5°F vs 47°F)
Good
Efficiency at 5°F
2.49 (COP at 5°F)
Top 10%
Winter efficiency
9.8 (HSPF2)
Good
Cooling efficiency
21.0 (SEER2)
Below the middle
Hot-day cooling
12.0 (EER2)
Below the middle
55.3score / 100Heating 69 · Cooling 42
4GNS12HCH20R32Owith ductless indoor unit GNS12HCH20R32IGENERALLUX STAR1 ton · 12,000 Btu/h · DuctlessNot a cold-climate pick: keeps 62% of its heat at 5°FMeets CEE 2025, CEE 2026
Heat kept at 5°F
63% (Capacity at 5°F vs 47°F)
Below the middle
Efficiency at 5°F
2.00 (COP at 5°F)
Good
Winter efficiency
8.5 (HSPF2)
Below the middle
Cooling efficiency
20.0 (SEER2)
Below the middle
Hot-day cooling
11.1 (EER2)
Below the middle
29.5score / 100Heating 29 · Cooling 30

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

What to do next

The advanced view has GENERALLUX STAR’s ranks on each rating, its models inside every size and type, cold-weather curves and its newest certifications.

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