What is the SEER2 rating of the DUOHOME DOT-D48HNR8-GA01(J0)?

The DUOHOME DOT-D48HNR8-GA01(J0) is rated at up to 17.5 SEER2 and 11.3 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 DUOHOME DOT-D48HNR8-GA01(J0) good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 34,200 BTU/h at 5°F with a COP of 2.10, so it is still 2.1 times as efficient as electric resistance heat at that temperature.

How much does the DUOHOME DOT-D48HNR8-GA01(J0) cost to run per year?

At its rated efficiency it costs about $1,275-$3,377 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,567 in Phoenix and $2,818 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 DUOHOME DOT-D48HNR8-GA01(J0)?

ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses DAH-D48HNR8-FMD(J0).

4-ton central heat pump · DOT-D48HNR8-GA01(J0)

DUOHOME DOT-D48HNR8-GA01(J0)

Average cooling and heating efficiency for a 4-ton central heat pump, and certified for cold climates.

Ranks #147 of 319 4 ton central heat pumps for cooling efficiency, and costs about $1,416 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: 11.3 Cooling efficiency on a 95°F day
Below average · beats 29%
Heat at 5°F: 34,200 BTU/h71% of its 47°F output
Average · beats 58%

A good fit if…

Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 34,200 BTU/h at 5°F.
You want steady temperatures and quiet running - the compressor varies its speed.

Think twice if…

Nothing stands out - its ratings have no weak spot for its class.

Calculate my running cost

Details

Specifications4 ton, R-454B

General
Brand	DUOHOME
Outdoor unit model	DOT-D48HNR8-GA01(J0)
Series	DOT-D48HNR8-GA01(J0)
Type	Central heat pump
Nominal size	4 ton
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	August 5, 2026
Last certified	August 20, 2026
Cooling
SEER2Seasonal efficiency, higher is better	17.5 (range 17.5)
EER2Efficiency at 95°F outdoors	11.3
Cooling capacity	47,500 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	9.0
Capacity at 47°F	48,000 BTU/h
Capacity at 17°F	40,000 BTU/h
Capacity at 5°F	34,200 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.10
ENERGY STAR cold climate	Yes

Heating output as it gets colder71% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with DAH-D48HNR8-FMD(J0) 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.
DAH-D48HNR8-FMD(J0) · cold climate	17.5	11.3	9.0	34,200	218258585

Yearly running cost in 10 large cities$1,275-$3,377

Phoenix, AZ$1,567/yr
Miami, FL$1,275/yr
Houston, TX$1,405/yr
Atlanta, GA$1,416/yr
Los Angeles, CA$1,376/yr
New York, NY$3,377/yr
Chicago, IL$2,740/yr
Denver, CO$2,277/yr
Seattle, WA$1,398/yr
Minneapolis, MN$2,818/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 DUOHOME DOT-D48HNR8-GA01(J0)?: The DUOHOME DOT-D48HNR8-GA01(J0) is rated at up to 17.5 SEER2 and 11.3 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 DUOHOME DOT-D48HNR8-GA01(J0) good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 34,200 BTU/h at 5°F with a COP of 2.10, so it is still 2.1 times as efficient as electric resistance heat at that temperature.
How much does the DUOHOME DOT-D48HNR8-GA01(J0) cost to run per year?: At its rated efficiency it costs about $1,275-$3,377 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,567 in Phoenix and $2,818 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 DUOHOME DOT-D48HNR8-GA01(J0)?: ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses DAH-D48HNR8-FMD(J0).
What refrigerant does the DUOHOME DOT-D48HNR8-GA01(J0) use?: It uses R-454B.

Running cost and savings

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

Heat pump $1,553/yrYou save $905/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 DUOHOME DOT-D48HNR8-GA01(J0)

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: $1,553
Current system, per year: $2,457
You save per year: $905
Payback: 19.9 years
Net after 10 years: -$8,954

Cooling $955Heating $597Electricity used: 9,705 kWhSaved vs. a minimum-efficiency heat pump: $333

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 4 ton models

LG KUSXB601A · cold climate17.5 SEER2 · 9.4 HSPF2
Daikin DH7VSA4810A · cold climate17.5 SEER2 · 8.8 HSPF2
MRCOOL UHP18060-O · cold climate17.5 SEER2 · 9.5 HSPF2
Invertercool COH17S-60AD · cold climate17.5 SEER2 · 8.8 HSPF2
MOOVAIR MSHMA48R2AN1 · cold climate17.5 SEER2 · 9.5 HSPF2
Friedrich WFPU18Z483C · cold climate17.5 SEER2 · 8.6 HSPF2
Midea MO1HE-H60B-2A · cold climate17.5 SEER2 · 9.5 HSPF2
Hisense AUWR-48U3SP2 · cold climate17.5 SEER2 · 8.6 HSPF2

See all 319 4 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of August 20, 2026. How we use the data.