What is the SEER2 rating of the Grandaire D5CURAH30AAK?

The Grandaire D5CURAH30AAK is rated at up to 18.6 SEER2 and 11.0 EER2 for cooling and up to 8.7 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.

Is the Grandaire D5CURAH30AAK good for cold climates?

It is not cold-climate certified: none of its matchups meet the ENERGY STAR cold-climate criteria (a COP of at least 1.75 at 5°F among other limits). In places with frequent sub-zero nights, pick a cold-climate 2.5-ton model.

How much does the Grandaire D5CURAH30AAK cost to run per year?

At its rated efficiency it costs about $761-$2,208 a year in electricity in large U.S. cities, depending on climate and local rates - for example $962 in Phoenix and $1,863 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 Grandaire D5CURAH30AAK?

ENERGY STAR lists 12 certified combinations for this outdoor unit. The highest-rated one uses D5MUWAQ30XA3.

2.5-ton central heat pump · D5C Series

Grandaire D5CURAH30AAK

Very good cooling efficiency and average heating efficiency for a 2.5-ton central heat pump, but not rated for cold climates.

Ranks #22 of 199 2.5 ton central heat pumps for cooling efficiency, and costs about $907 a year to run in a mixed climate like Atlanta.

SEER2: 18.6 Cooling efficiency over a season
Very good · beats 79%
HSPF2: 8.7 Heating efficiency over a season
Average · beats 47%
EER2: 11.0 Cooling efficiency on a 95°F day
Below average · beats 23%
Heat at 5°F: 18,700 BTU/h60% of its 47°F output
Below average · beats 31%

A good fit if…

You want low cooling bills - its SEER2 beats 79% of central heat pumps.
You want steady temperatures and quiet running - the compressor varies its speed.
You want a choice of indoor units - 12 certified pairings.

Think twice if…

You often see nights below 0°F - it is not cold-climate certified.

Calculate my running cost

Details

Specifications2.5 ton, R-454B

General
Brand	Grandaire
Also sold as	LPS Legacy, Airquest, Smart Comfort, Tempstar, Kenmore, Keeprite, Heil, Day & Night, Comfortmaker, Arcoaire, Viessmann
Outdoor unit model	D5CURAH30AAK
Series	D5C Series
Type	Central heat pump
Nominal size	2.5 ton
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	March 1, 2026
Last certified	July 14, 2026
Cooling
SEER2Seasonal efficiency, higher is better	18.6 (range 18.6)
EER2Efficiency at 95°F outdoors	11.0
Cooling capacity	30,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	8.7
Capacity at 47°F	31,000 BTU/h
Capacity at 17°F	18,200 BTU/h
Capacity at 5°F	18,700 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	1.99
ENERGY STAR cold climate	No

Heating output as it gets colder60% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with D5MUWAQ30XA3 at the standard test temperatures, in BTU/h:

Certified matchups12 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.
D5MUWAQ30XA3	18.6	11.0	8.7	18,700	218213823
D5MUWAQ30XA3	18.6	11.0	8.7	18,700	218213821
D5MUWAQ30XA3	18.6	11.0	8.7	18,700	218213819
D5MUWAQ30XA3	18.6	11.0	8.7	18,700	218213817
D5MUWAQ30XA3	18.6	11.0	8.7	18,700	218213815
D5MUWAQ30XA3	18.6	11.0	8.7	18,700	218213813
D5MUWAQ30XA3	18.6	11.0	8.7	18,700	218213811
D5MUWAQ30XA3	18.6	11.0	8.7	18,700	218213809
D5MUWAQ30XA3	18.6	11.0	8.7	18,700	218213807
D5MUWAQ30XA3	18.6	11.0	8.7	18,700	218213805
D5MUWAQ30XA3	18.6	11.0	8.7	18,700	218213803
D5MUWAQ30XA3	18.6	11.0	8.7	18,700	218668527

Yearly running cost in 10 large cities$761-$2,208

Phoenix, AZ$962/yr
Miami, FL$761/yr
Houston, TX$863/yr
Atlanta, GA$907/yr
Los Angeles, CA$890/yr
New York, NY$2,208/yr
Chicago, IL$1,800/yr
Denver, CO$1,503/yr
Seattle, WA$929/yr
Minneapolis, MN$1,863/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 Grandaire D5CURAH30AAK?: The Grandaire D5CURAH30AAK is rated at up to 18.6 SEER2 and 11.0 EER2 for cooling and up to 8.7 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
Is the Grandaire D5CURAH30AAK good for cold climates?: It is not cold-climate certified: none of its matchups meet the ENERGY STAR cold-climate criteria (a COP of at least 1.75 at 5°F among other limits). In places with frequent sub-zero nights, pick a cold-climate 2.5-ton model.
How much does the Grandaire D5CURAH30AAK cost to run per year?: At its rated efficiency it costs about $761-$2,208 a year in electricity in large U.S. cities, depending on climate and local rates - for example $962 in Phoenix and $1,863 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 Grandaire D5CURAH30AAK?: ENERGY STAR lists 12 certified combinations for this outdoor unit. The highest-rated one uses D5MUWAQ30XA3.
What refrigerant does the Grandaire D5CURAH30AAK 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 $967/yrYou save $596/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 Grandaire D5CURAH30AAK

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: $967
Current system, per year: $1,563
You save per year: $596
Payback: 19.3 years
Net after 10 years: -$5,536

Cooling $568Heating $399Electricity used: 6,043 kWhSaved vs. a minimum-efficiency heat pump: $235

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 2.5 ton models

DuraSTAR DRU1U30S2A18.6 SEER2 · 8.7 HSPF2
MDV MOD30-30HFN10-M318.6 SEER2 · 8.7 HSPF2
Carrier 37MURAQ30AA318.6 SEER2 · 8.7 HSPF2
Midea MO1BE-H30B-2A18.6 SEER2 · 8.7 HSPF2
UTL UCHA-30HFDCSN4 · cold climate18.6 SEER2 · 9.3 HSPF2
Continental WSEHV2436BA1-C · cold climate18.5 SEER2 · 10.0 HSPF2
Innovair TOV36H2XA · cold climate19.0 SEER2 · 9.5 HSPF2
GREE GUD36W2/NXF-D(U) · cold climate18.5 SEER2 · 10.0 HSPF2

See all 199 2.5 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of July 14, 2026. How we use the data.