What is the SEER2 rating of the ACIQ ACIQ-12-EHPB?

The ACIQ ACIQ-12-EHPB is rated at up to 17.5 SEER2 and 11.7 EER2 for cooling and up to 9.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.

Is the ACIQ ACIQ-12-EHPB good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 11,000 BTU/h at 5°F with a COP of 2.60, so it is still 2.6 times as efficient as electric resistance heat at that temperature.

How much does the ACIQ ACIQ-12-EHPB cost to run per year?

At its rated efficiency it costs about $323-$903 a year in electricity in large U.S. cities, depending on climate and local rates - for example $403 in Phoenix and $758 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

Which indoor units work with the ACIQ ACIQ-12-EHPB?

ENERGY STAR lists 5 certified combinations for this outdoor unit. The highest-rated one uses ACIQ-12-AHB.

What refrigerant does the ACIQ ACIQ-12-EHPB use?

It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and R-32.

Under 1.5-ton central heat pump · ACIQ Series

ACIQ ACIQ-12-EHPB

Average cooling and heating efficiency for a under 1.5-ton central heat pump, and certified for cold climates.

Ranks #7 of 9 Under 1.5 ton central heat pumps for cooling efficiency, and costs about $374 a year to run in a mixed climate like Atlanta.

SEER2: 17.5 Cooling efficiency over a season
Average · beats 58%
HSPF2: 9.0 Heating efficiency over a season
Average · beats 54%
EER2: 11.7 Cooling efficiency on a 95°F day
Average · beats 43%
Heat at 5°F: 11,000 BTU/h85% of its 47°F output
Excellent · beats 99%

A good fit if…

Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 11,000 BTU/h at 5°F.
You want steady temperatures and quiet running - the compressor varies its speed.

Think twice if…

You want the newest refrigerant - it uses R-410A, which is being phased down.

Calculate my running cost

Details

SpecificationsUnder 1.5 ton, R-410A

General
Brand	ACIQ
Also sold as	1HVAC, STEALTH, PolarWave, DIYCOOL
Outdoor unit model	ACIQ-12-EHPB
Series	ACIQ Series
Type	Central heat pump
Nominal size	Under 1.5 ton
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-410A
Connected (smart) capable	No
On the market since	October 1, 2022
Last certified	June 9, 2026
Cooling
SEER2Seasonal efficiency, higher is better	17.5 (range 17.5)
EER2Efficiency at 95°F outdoors	11.7
Cooling capacity	12,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	9.0
Capacity at 47°F	13,000 BTU/h
Capacity at 17°F	12,000 BTU/h
Capacity at 5°F	11,000 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.60
ENERGY STAR cold climate	Yes

Heating output as it gets colder85% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with ACIQ-12-AHB at the standard test temperatures, in BTU/h:

Certified matchups5 indoor units

The same outdoor unit scores differently with each indoor unit. Ask your installer for the AHRI reference number of the exact system you are quoted.

Indoor unit	SEER2	EER2	HSPF2	Heat @5°F	AHRI ref.
ACIQ-12-AHB · cold climate	17.5	11.7	9.0	11,000	214602072
ACIQ-12-AHB · cold climate	17.5	11.7	9.0	11,000	214602071
ACIQ-12-AHB · cold climate	17.5	11.7	9.0	11,000	214602075
ACIQ-12-AHB · cold climate	17.5	11.7	9.0	11,000	214602074
ACIQ-12-AHB · cold climate	17.5	11.7	9.0	11,000	214602073

Yearly running cost in 10 large cities$323-$903

Phoenix, AZ$403/yr
Miami, FL$323/yr
Houston, TX$362/yr
Atlanta, GA$374/yr
Los Angeles, CA$365/yr
New York, NY$903/yr
Chicago, IL$735/yr
Denver, CO$612/yr
Seattle, WA$377/yr
Minneapolis, MN$758/yr

At each state's average electricity price and the city's typical heating and cooling hours.

Questions5

What is the SEER2 rating of the ACIQ ACIQ-12-EHPB?: The ACIQ ACIQ-12-EHPB is rated at up to 17.5 SEER2 and 11.7 EER2 for cooling and up to 9.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
Is the ACIQ ACIQ-12-EHPB good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 11,000 BTU/h at 5°F with a COP of 2.60, so it is still 2.6 times as efficient as electric resistance heat at that temperature.
How much does the ACIQ ACIQ-12-EHPB cost to run per year?: At its rated efficiency it costs about $323-$903 a year in electricity in large U.S. cities, depending on climate and local rates - for example $403 in Phoenix and $758 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Which indoor units work with the ACIQ ACIQ-12-EHPB?: ENERGY STAR lists 5 certified combinations for this outdoor unit. The highest-rated one uses ACIQ-12-AHB.
What refrigerant does the ACIQ ACIQ-12-EHPB use?: It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and R-32.

Running cost and savings

Pre-filled with this model. Pick your city and what you heat with today; everything else is optional.

Heat pump $403/yrYou save $232/yrSee details ↓

1. Where you live

StateCityElectricity ¢ per kWh

Adjust heating and cooling hours

Filled in from your city's climate. Change them if you run the system much more or less than usual.

Cooling hours full-load hours per yearHeating hours full-load hours per year

2. The heat pump ACIQ ACIQ-12-EHPB

Find a model (fills in the ratings below)

SEER2 cooling efficiencyHSPF2 heating efficiencyCooling capacity BTU/hHeating capacity BTU/h

3. What it replaces

Current heatingFurnace efficiency (AFUE %)Gas price, $/thermCurrent coolingOld AC rating SEER2 (10 ≈ 15+ years old)

4. Price replace the example with your quote

Installed price, $Rebates and incentives, $ utility, state

Heat pump, per year: $403
Current system, per year: $635
You save per year: $232
Payback: 19.4 years
Net after 10 years: -$2,180

Cooling $241Heating $162Electricity used: 2,520 kWhSaved vs. a minimum-efficiency heat pump: $86

Estimates use the unit's rated SEER2 and HSPF2, full-load hours derived from NOAA 1991-2020 degree days, average residential electricity prices from the U.S. EIA (12 months to July 2026) and fuel prices from EIA (2025 for natural gas, week of 2026-10-05 for propane and heating oil). Very cold days that need backup heat are not modelled. Federal minimum for comparison: 14.3 SEER2 / 7.5 HSPF2.

Similar Under 1.5 ton models

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MDV MOX330U-12HFN1-MR0 · cold climate17.5 SEER2 · 9.0 HSPF2
Panasonic CU-E9SD3UA20.5 SEER2 · 9.9 HSPF2
Daikin DH6VSA121MA16.5 SEER2 · 8.5 HSPF2
MDV MOX330-12HFN10-M3 · cold climate21.0 SEER2 · 10.0 HSPF2
Atomi Smart AT223923.9 SEER2 · 8.3 HSPF2
Sharp AY-XP12ZHU1: AE-X12ZHU1 · cold climate25.0 SEER2 · 11.0 HSPF2
ACIQ ACIQ-12-EHPD · cold climate21.0 SEER2 · 10.0 HSPF2

See all 9 Under 1.5 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of June 9, 2026. How we use the data.