What is the SEER2 rating of the Hisense AUWR-48U3SP?

The Hisense AUWR-48U3SP is rated at up to 15.6 SEER2 and 11.4 EER2 for cooling and up to 8.6 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.

Is the Hisense AUWR-48U3SP good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 34,600 BTU/h at 5°F with a COP of 1.94, so it is still 1.9 times as efficient as electric resistance heat at that temperature.

How much does the Hisense AUWR-48U3SP cost to run per year?

At its rated efficiency it costs about $1,266-$3,159 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,529 in Phoenix and $2,615 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

Is the Hisense AUWR-48U3SP the same as the Westinghouse WHM48SZA21S?

Yes, as far as the certified ratings go. ENERGY STAR lists both model numbers with identical efficiency, capacity and matchups, which means the same outdoor unit sold under a different brand or with a minor variant code (voltage, colour or region). The full list is on this page.

Which indoor units work with the Hisense AUWR-48U3SP?

ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses DC61A44-245R.

What refrigerant does the Hisense AUWR-48U3SP 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.

3.5-ton central heat pump · Hi ULTRA HD-Coil

Hisense AUWR-48U3SP

Below average cooling efficiency and average heating efficiency for a 3.5-ton central heat pump, and certified for cold climates.

Ranks #96 of 138 3.5 ton central heat pumps for cooling efficiency, and costs about $1,343 a year to run in a mixed climate like Atlanta.

SEER2: 15.6 Cooling efficiency over a season
Below average · beats 17%
HSPF2: 8.6 Heating efficiency over a season
Average · beats 44%
EER2: 11.4 Cooling efficiency on a 95°F day
Below average · beats 30%
Heat at 5°F: 34,600 BTU/h82% of its 47°F output
Below average · beats 26%

A good fit if…

Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 34,600 BTU/h at 5°F.
You want steady temperatures and quiet running - the compressor varies its speed.

Think twice if…

Cooling cost matters most - its SEER2 is below average for central heat pumps.
You want the newest refrigerant - it uses R-410A, which is being phased down.

Calculate my running cost

Details

Specifications3.5 ton, R-410A

General
Brand	Hisense
Also sold as	Westinghouse
Outdoor unit model	AUWR-48U3SP
Series	Hi ULTRA HD-Coil
Type	Central heat pump
Nominal size	3.5 ton
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-410A
Connected (smart) capable	No
On the market since	October 25, 2023
Last certified	January 29, 2025
Cooling
SEER2Seasonal efficiency, higher is better	15.6 (range 15.6)
EER2Efficiency at 95°F outdoors	11.4
Cooling capacity	42,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	8.6
Capacity at 47°F	42,000 BTU/h
Capacity at 17°F	31,200 BTU/h
Capacity at 5°F	34,600 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	1.94
ENERGY STAR cold climate	Yes

Heating output as it gets colder82% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with DC61A44-245R at the standard test temperatures, in BTU/h:

Certified matchups1 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.
DC61A44-245R · cold climate	15.6	11.4	8.6	34,600	213411088

Same unit, other model numbers1

These model numbers have exactly the same certified ratings and matchups as the Hisense AUWR-48U3SP: the same equipment under another brand, or a variant code for voltage, colour or market. Everything on this page applies to them.

Westinghouse WHM48SZA21S

Yearly running cost in 10 large cities$1,266-$3,159

Phoenix, AZ$1,529/yr
Miami, FL$1,266/yr
Houston, TX$1,369/yr
Atlanta, GA$1,343/yr
Los Angeles, CA$1,298/yr
New York, NY$3,159/yr
Chicago, IL$2,555/yr
Denver, CO$2,116/yr
Seattle, WA$1,294/yr
Minneapolis, MN$2,615/yr

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

Questions6

What is the SEER2 rating of the Hisense AUWR-48U3SP?: The Hisense AUWR-48U3SP is rated at up to 15.6 SEER2 and 11.4 EER2 for cooling and up to 8.6 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
Is the Hisense AUWR-48U3SP good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 34,600 BTU/h at 5°F with a COP of 1.94, so it is still 1.9 times as efficient as electric resistance heat at that temperature.
How much does the Hisense AUWR-48U3SP cost to run per year?: At its rated efficiency it costs about $1,266-$3,159 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,529 in Phoenix and $2,615 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Is the Hisense AUWR-48U3SP the same as the Westinghouse WHM48SZA21S?: Yes, as far as the certified ratings go. ENERGY STAR lists both model numbers with identical efficiency, capacity and matchups, which means the same outdoor unit sold under a different brand or with a minor variant code (voltage, colour or region). The full list is on this page.
Which indoor units work with the Hisense AUWR-48U3SP?: ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses DC61A44-245R.
What refrigerant does the Hisense AUWR-48U3SP 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 $1,501/yrYou save $665/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 Hisense AUWR-48U3SP

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: $1,501
Current system, per year: $2,166
You save per year: $665
Payback: 24.1 years
Net after 10 years: -$9,353

Cooling $951Heating $550Electricity used: 9,381 kWhSaved vs. a minimum-efficiency heat pump: $160

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.

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Lennox ML17XP1-042-230A15.6 SEER2 · 8.3 HSPF2
Concord 7HP14F42P-**A15.5 SEER2 · 8.2 HSPF2
Lennox EL17XP1-042-230A15.6 SEER2 · 8.3 HSPF2
GE NS16H42SA5-**A15.5 SEER2 · 8.2 HSPF2
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See all 138 3.5 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of January 29, 2025. How we use the data.