ACiQ heat pump

HVH837GKA2*+TSTAT

Ducted split systemTwo-stage

The ACiQ HVH837GKA2*+TSTAT is a ducted split system heat pump outdoor unit with a rated cooling capacity of 32,400 BTU/h (about 2.5 tons) and a two-stage compressor running on R-410A refrigerant. ENERGY STAR lists 14 certified indoor-unit pairings for it. In cold weather it still delivers 24,200 BTU/h at 5°F — 51% of its 47°F output, below the 76% median across the 308 models we track (better than 14% of them). Its HSPF2 of 8.1 is higher than 17% of models in our database, and its best certified SEER2 of 18 beats 53%.

Our take in 30 seconds

Best for: mild climates or homes with backup heat

Strengths

  • Meets ENERGY STAR efficiency requirements.

Good to know

  • Only 51% of its heat output remains at 5°F; plan on backup heat in hard freezes
  • Heating efficiency (HSPF2 8.1) is in the lower third of models
  • Uses R-410A, a refrigerant being phased down; future service may cost more
Est. yearly cost
$2,085
U.S. average rates
SEER2
17–18
Cooling efficiency
HSPF2
8.1
Top 83% heating efficiency
Heat kept at 5°F
51%
Median is 76%
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Running-cost calculator

Pre-filled with EIA prices · edit any field
Estimated annual cost
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Heating
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Cooling
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Uses the base certified SEER2 (17) and HSPF2 (8.1). Assumes the unit is correctly sized. How we calculate.

Heating capacity as it gets colder

A heat pump's output falls as outdoor temperature drops. This is the certified heat output of the ACiQ HVH837GKA2*+TSTAT at the three ENERGY STAR test temperatures (cooling capacity is 32,400 BTU/h for reference).

47°F
47,500 BTU/h
17°F
30,800 BTU/h
5°F
24,200 BTU/h

Retention at 17°F: 65% · at 5°F: 51%. Learn how to use these numbers in our cold-climate guide.

Estimated running cost in every state

Same unit, very different bills: from about $1,019 a year in Louisiana to $5,230 in Alaska, driven by local electricity prices and how much heating or cooling the climate needs. Click a column to sort.

StatePriceHeatingCoolingTotal / yr
Louisiana12.87¢$528$491$1,019
Florida14.99¢$396$686$1,081
Arizona15.05¢$618$631$1,249
Mississippi14.43¢$762$495$1,257
Nevada12.72¢$895$436$1,331
Tennessee13.42¢$1,102$333$1,434
Texas15.91¢$840$606$1,446
South Carolina15.76¢$1,017$481$1,497
Arkansas14.37¢$1,095$411$1,506
North Carolina14.95¢$1,140$370$1,510
Georgia15.90¢$1,026$485$1,511
Alabama16.33¢$1,053$498$1,551
Washington14.63¢$1,458$98$1,556
Kentucky13.80¢$1,295$289$1,584
Oregon15.92¢$1,494$137$1,630
Oklahoma14.82¢$1,217$424$1,640
Utah13.31¢$1,483$228$1,711
New Mexico16.51¢$1,452$315$1,767
Idaho13.37¢$1,646$178$1,825
Nebraska13.54¢$1,667$232$1,900
Virginia17.64¢$1,552$370$1,921
Missouri16.02¢$1,597$336$1,933
Kansas15.47¢$1,633$324$1,957
West Virginia16.31¢$1,722$249$1,970
California29.75¢$1,570$567$2,137
Delaware18.70¢$1,864$356$2,221
Colorado17.17¢$2,014$229$2,243
Wyoming14.43¢$2,116$138$2,253
Indiana17.02¢$1,996$276$2,272
North Dakota13.31¢$2,264$114$2,378
South Dakota15.15¢$2,221$188$2,409
Montana15.57¢$2,283$134$2,416
Hawaii47.18¢$138$2,338$2,476
Maryland21.40¢$2,133$408$2,541
Iowa17.06¢$2,301$244$2,545
Ohio19.38¢$2,273$295$2,568
Illinois19.32¢$2,379$295$2,674
Pennsylvania21.77¢$2,553$332$2,885
Minnesota17.20¢$2,723$180$2,904
District of Columbia25.98¢$2,438$545$2,982
New Jersey24.61¢$2,598$422$3,020
Wisconsin19.41¢$2,846$222$3,068
Connecticut24.51¢$3,162$304$3,466
Michigan22.99¢$3,236$263$3,499
Vermont23.84¢$3,635$204$3,839
Rhode Island28.18¢$3,636$322$3,958
New York28.65¢$3,696$355$4,051
New Hampshire27.64¢$4,052$263$4,316
Massachusetts30.48¢$4,111$349$4,460
Maine32.11¢$4,896$245$5,141
Alaska29.41¢$5,174$56$5,230
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Similar-size alternatives

Other ducted split system units within ±15% of this model's cooling capacity, sorted by efficiency. Cost difference is versus the ACiQ HVH837GKA2*+TSTAT at U.S.-average rates.

ModelCooling BTU/hSEER2HSPF25°F keptEst. yearly cost
Ruud UP19AY36AJVC34,20019–211087%$1,353 (−$731)Compare
Payne 37MUHAQ30AA330,00015.3–17.510.898%$1,306 (−$778)Compare
Midea MO1HE-H30B-2A30,00015.2–17.510.898%$1,309 (−$776)Compare
Bryant 37MUHAQ36AA336,00015.8–1810.3103%$1,527 (−$558)Compare
Daikin DH9VSA361CA*34,20016.9–2110100%$1,398 (−$687)Compare
Panasonic CU-HM36BAHU36,00015.6–17.410.3103%$1,533 (−$552)Compare

Full specifications

BrandACiQ
Outdoor modelHVH837GKA2*+TSTAT
Certified byCarrier Corporation
Product typeDucted split system
CompressorTwo-stage
RefrigerantR-410A
Cooling capacity32,400 BTU/h
Nominal size2.5 tons
SEER2 (certified range)17 – 18
EER2 (best)12
HSPF2 (best)8.1
Heating capacity @ 47°F47,500 BTU/h
Heating capacity @ 17°F30,800 BTU/h
Heating capacity @ 5°F24,200 BTU/h
COP @ 5°F1.96
ENERGY STAR cold-climateNo
Certified indoor pairings14
Latest certification2025-05

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), retrieved November 7, 2026. Capacities and HSPF2 are the highest values across certified pairings; confirm your exact system's AHRI reference number with your installer.

Frequently asked questions

How much does the ACiQ HVH837GKA2*+TSTAT cost to run per year?

At the U.S. average residential electricity price of 18.16¢/kWh and typical national heating and cooling hours, we estimate about $2,085 per year ($1,704 heating, $381 cooling). It ranges from about $1,019 in Louisiana to $5,230 in Alaska.

Does the ACiQ HVH837GKA2*+TSTAT work in cold weather?

It is not ENERGY STAR cold-climate certified. It delivers 24,200 BTU/h at 5°F (51% of its 47°F capacity), so in very cold climates expect more reliance on backup heat.

What size is the ACiQ HVH837GKA2*+TSTAT?

It is rated at 32,400 BTU/h of cooling, roughly 2.5 tons, and 47,500 BTU/h of heating at 47°F. Proper sizing should be confirmed with a Manual J load calculation.

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