STEALTH heat pumps: how do their ratings compare?

A typical STEALTH heat pump beats 57% of similar heat pumps (same size and type), which is above average. STEALTH has 42 heat pump models in this list.

Covers older R-410A heat pumps, no longer installed new. See models sold today · Updated Oct 11, 2026

Overall score

57%

of similar heat pumps beaten by its typical model

Above average

STEALTH has no QMID (the manufacturer ID the 25C tax credit needs) on file, so it is not ranked against other brands. Based on 57 models with every rating.

STEALTH, rating by ratingStrongest on winter-long heating efficiency (beats 69%), weakest on efficiency on a 5°f day (beats 45%).

Efficiency on a 5°F dayCOP at 5°FBeats 45%
Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 61%
Winter-long heating efficiencyHSPF2Beats 69%
Summer-long cooling efficiencySEER2Beats 61%
Hot-day cooling efficiencyEER2Beats 45%

Average (50%)

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

Want STEALTH’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.

62%
meet CEE 2025 Tier 1, the level many utility rebates use.
26 models. All brands: 48%.
See them
48%
meet Xcel Energy Colorado’s cold-climate rebate levels.
20 models. All brands: 38%.
See them
2%
reach the cold-climate tier: full heating output and a COP of 2.1 or more at 5°F.
1 model. All brands: 1%.
See them

Top STEALTH cold-climate picks, by size

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

7 of STEALTH’s 8 models of this size and type qualify.

1ACIQ-18-HPBwith ducted air handler ACIQ-18W-WMSTEALTH1.5 tons · 18,000 Btu/h · DuctedKeeps 99% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
99% (Capacity at 5°F vs 47°F)
Great
Efficiency at 5°F
2.30 (COP at 5°F)
Great
Seasonal efficiency
10.8 (HSPF2)
Top 10%
86.9score / 100
2ACIQ-09ZPL-HP230Bwith ducted air handler ACIQ-09CD-HH-MBSTEALTH1 ton · 9,000 Btu/h · DuctedKeeps 108% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
108% (Capacity at 5°F vs 47°F)
Top 10%
Efficiency at 5°F
1.90 (COP at 5°F)
Below the middle
Seasonal efficiency
12.0 (HSPF2)
Top 10%
74.9score / 100
3ACIQ-12ZPL-HP230Bwith ducted air handler ACIQ-12CD-HH-MBSTEALTH1 ton · 12,000 Btu/h · DuctedKeeps 97% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
97% (Capacity at 5°F vs 47°F)
Great
Efficiency at 5°F
1.96 (COP at 5°F)
Below the middle
Seasonal efficiency
10.0 (HSPF2)
Great
65.4score / 100
4ACIQ-12-EHPBwith ducted air handler ACIQ-12-AHBSTEALTH1 ton · 12,000 Btu/h · DuctedKeeps 85% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
85% (Capacity at 5°F vs 47°F)
Good
Efficiency at 5°F
2.00 (COP at 5°F)
Good
Seasonal efficiency
9.0 (HSPF2)
Below the middle
53.4score / 100
5ES-18Z-M2BSTEALTH1.5 tons · 18,000 Btu/h · DuctedKeeps 70% of its heat at 5°FMeets 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
2.00 (COP at 5°F)
Good
Seasonal efficiency
9.8 (HSPF2)
Good
52.0score / 100

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 STEALTH’s ranks on each rating, its models inside every size and type, cold-weather curves and its newest certifications.

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