Hisense heat pump

AMW4-36U3STA

Mini-split / multi-splitVariable-speed (inverter)ENERGY STAR cold-climateENERGY STAR Most Efficient (some pairings)

The Hisense AMW4-36U3STA is a mini-split / multi-split heat pump outdoor unit with a rated cooling capacity of 32,000 BTU/h (about 2.5 tons) and a variable-speed (inverter) compressor running on R-410A refrigerant. ENERGY STAR lists 4 certified indoor-unit pairings for it. In cold weather it still delivers 36,000 BTU/h at 5°F — 112% of its 47°F output, well above the 76% median across the 308 models we track (better than 99% of them). Its HSPF2 of 9 is higher than 47% of models in our database, and its best certified SEER2 of 21 beats 76%.

Our take in 30 seconds

Best for: cold and very cold climates

Strengths

  • Keeps 112% of its heat at 5°F, so backup heat rarely runs
  • Cooling efficiency up to SEER2 21, better than 76% of models
  • Variable-speed compressor: quieter, steadier temperatures and better humidity control

Good to know

  • Uses R-410A, a refrigerant being phased down; future service may cost more
Est. yearly cost
$1,361
U.S. average rates
SEER2
19.5–21
Cooling efficiency
HSPF2
9
Top 53% heating efficiency
Heat kept at 5°F
112%
Median is 76%
Advertisement

Running-cost calculator

Pre-filled with EIA prices · edit any field
Estimated annual cost
—
Heating
—
Cooling
—

Uses the base certified SEER2 (19.5) and HSPF2 (9). 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 Hisense AMW4-36U3STA at the three ENERGY STAR test temperatures (cooling capacity is 32,000 BTU/h for reference).

47°F
32,000 BTU/h
17°F
23,000 BTU/h
5°F
36,000 BTU/h

Retention at 17°F: 72% · at 5°F: 112%. Learn how to use these numbers in our cold-climate guide.

Estimated running cost in every state

Same unit, very different bills: from about $743 a year in Louisiana to $3,185 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¢$320$422$743
Florida14.99¢$240$590$830
Mississippi14.43¢$462$426$888
Arizona15.05¢$375$543$918
Nevada12.72¢$543$376$918
Tennessee13.42¢$668$286$954
Washington14.63¢$884$84$968
North Carolina14.95¢$691$319$1,010
Arkansas14.37¢$664$354$1,018
Oregon15.92¢$906$118$1,023
South Carolina15.76¢$616$414$1,030
Texas15.91¢$509$522$1,031
Kentucky13.80¢$785$249$1,034
Georgia15.90¢$622$417$1,039
Alabama16.33¢$639$429$1,067
Utah13.31¢$899$197$1,096
Oklahoma14.82¢$738$365$1,103
New Mexico16.51¢$881$271$1,151
Idaho13.37¢$998$154$1,152
Nebraska13.54¢$1,011$200$1,211
Missouri16.02¢$968$289$1,258
West Virginia16.31¢$1,044$214$1,258
Virginia17.64¢$941$318$1,259
Kansas15.47¢$990$279$1,269
Wyoming14.43¢$1,283$118$1,401
Colorado17.17¢$1,221$197$1,418
Delaware18.70¢$1,130$307$1,437
California29.75¢$952$488$1,440
Indiana17.02¢$1,210$237$1,448
North Dakota13.31¢$1,372$98$1,471
Montana15.57¢$1,384$115$1,499
South Dakota15.15¢$1,347$162$1,508
Iowa17.06¢$1,395$210$1,605
Ohio19.38¢$1,378$254$1,633
Maryland21.40¢$1,294$351$1,645
Illinois19.32¢$1,443$254$1,696
Minnesota17.20¢$1,651$155$1,806
Pennsylvania21.77¢$1,548$286$1,834
Wisconsin19.41¢$1,725$191$1,916
New Jersey24.61¢$1,575$363$1,939
District of Columbia25.98¢$1,478$469$1,947
Hawaii47.18¢$84$2,013$2,097
Connecticut24.51¢$1,917$261$2,179
Michigan22.99¢$1,962$226$2,188
Vermont23.84¢$2,204$176$2,380
Rhode Island28.18¢$2,204$277$2,482
New York28.65¢$2,241$306$2,547
New Hampshire27.64¢$2,457$227$2,684
Massachusetts30.48¢$2,493$300$2,793
Maine32.11¢$2,968$211$3,179
Alaska29.41¢$3,137$48$3,185
Advertisement

Similar-size alternatives

Other mini-split / multi-split units within ±15% of this model's cooling capacity, sorted by efficiency. Cost difference is versus the Hisense AMW4-36U3STA at U.S.-average rates.

ModelCooling BTU/hSEER2HSPF25°F keptEst. yearly cost
Mitsubishi Electric MXZ-SM36NLHZ-**36,00016–2312100%$1,466 (+$106)Compare
Samsung AC030DXSCCG30,00019–22.810.7100%$1,266 (−$95)Compare
Mitsubishi Electric PUZ-AK30NLHZ2***30,00017.6–23.811100%$1,186 (−$175)Compare
Mitsubishi Electric MXZ-SM36NL-**36,00017.5–231171%$1,494 (+$133)Compare
Samsung AC036DXSCCG36,00018.7–2210.6100%$1,481 (+$120)Compare
Mitsubishi Electric PUZ-AK36NLHZ2***36,00018.1–23.310.5100%$1,449 (+$88)Compare

Full specifications

BrandHisense
Outdoor modelAMW4-36U3STA
Certified byHisense (Guangdong) Air Conditioning Co. Ltd
Product typeMini-split / multi-split
CompressorVariable-speed (inverter)
RefrigerantR-410A
Cooling capacity32,000 BTU/h
Nominal size2.5 tons
SEER2 (certified range)19.5 – 21
EER2 (best)12.5
HSPF2 (best)9
Heating capacity @ 47°F32,000 BTU/h
Heating capacity @ 17°F23,000 BTU/h
Heating capacity @ 5°F36,000 BTU/h
COP @ 5°F1.84
ENERGY STAR cold-climateYes
Certified indoor pairings4
Latest certification2026-06

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 Hisense AMW4-36U3STA 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 $1,361 per year ($1,033 heating, $328 cooling). It ranges from about $743 in Louisiana to $3,185 in Alaska.

Does the Hisense AMW4-36U3STA work in cold weather?

Yes. It is ENERGY STAR cold-climate certified and delivers 36,000 BTU/h at 5°F, 112% of its 47°F capacity, with a COP of 1.84 at 5°F.

What size is the Hisense AMW4-36U3STA?

It is rated at 32,000 BTU/h of cooling, roughly 2.5 tons, and 32,000 BTU/h of heating at 47°F. Proper sizing should be confirmed with a Manual J load calculation.

Advertisement