What is the SEER2 rating of the York YH548E2S11?

The York YH548E2S11 is rated at up to 16.0 SEER2 and 12.0 EER2 for cooling and up to 8.1 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 381 certified matchups SEER2 ranges from 15.2-16.0.

Is the York YH548E2S11 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 4-ton model.

How much does the York YH548E2S11 cost to run per year?

At its rated efficiency it costs about $1,380-$3,639 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,694 in Phoenix and $3,035 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 York YH548E2S11?

ENERGY STAR lists 381 certified combinations for this outdoor unit. The highest-rated ones use CTM60C5CHS1, CTF60C5CHS1, CTM60C5CHS2.

4-ton central heat pump · LX SERIES

York YH548E2S11

Below average cooling and heating efficiency for a 4-ton central heat pump, but not rated for cold climates.

Ranks #251 of 319 4 ton central heat pumps for cooling efficiency, and costs about $1,527 a year to run in a mixed climate like Atlanta.

SEER2: 16.0 Cooling efficiency over a season
Below average · beats 26%
HSPF2: 8.1 Heating efficiency over a season
Below average · beats 20%
EER2: 12.0 Cooling efficiency on a 95°F day
Average · beats 64%
Heat at 5°F: 27,200 BTU/h56% of its 47°F output
Excellent · beats 96%

A good fit if…

You want a choice of indoor units - 381 certified pairings.

Think twice if…

You often see nights below 0°F - it is not cold-climate certified.
Cooling cost matters most - its SEER2 is below average for central heat pumps.
You mainly need heat - its HSPF2 is below average for central heat pumps.

Calculate my running cost

Details

Specifications4 ton, R-454B

General
Brand	York
Outdoor unit model	YH548E2S11
Series	LX SERIES
Type	Central heat pump
Nominal size	4 ton
CompressorVariable-speed units run longer at low power	Two-stage
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	July 9, 2024
Last certified	September 22, 2026
Cooling
SEER2Seasonal efficiency, higher is better	16.0 (range 15.2-16.0)
EER2Efficiency at 95°F outdoors	11.0-12.0
Cooling capacity	45,500-48,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	7.8-8.1
Capacity at 47°F	45,000-48,000 BTU/h
Capacity at 17°F	29,200-32,400 BTU/h
Capacity at 5°F	24,600-27,200 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.10-2.42
ENERGY STAR cold climate	No

Heating output as it gets colder56% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with CTM60C5CHS1 at the standard test temperatures, in BTU/h:

Certified matchups381 indoor units

The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 381 are shown. Ask your installer for the AHRI reference number of the exact system you are quoted.

Indoor unit	Furnace	SEER2	EER2	HSPF2	Heat @5°F	AHRI ref.
CTM60C5CHS1	Y82V100C16SMPC1	16.0	12.0	7.8	26,200	217444706
CTF60C5CHS1	Y82V120C20SMPC1	16.0	12.0	7.8	26,400	217444704
CTM60C5CHS1	Y82V080C16SMPC1	16.0	12.0	7.8	26,200	217444703
CTM60C5CHS1	Y82V120C20SMPC1	16.0	12.0	7.8	26,000	217444701
CTM60C5CHS1	Y82V100C20SMPC1	16.0	12.0	7.8	26,400	217444700
CTM60C5CHS2	Y82V100C16SMPC1	16.0	12.0	7.8	26,200	218500859
CTM60C5CHS2	Y82V120C20SMPC1	16.0	12.0	7.8	26,000	218500857
CTM60C5CHS2	Y82V100C20SMPC1	16.0	12.0	7.8	26,400	218500854
CTM60C5CHS2	Y82V080C16SMPC1	16.0	12.0	7.8	26,200	218500851
CTF60C5CHS2	Y82V120C20SMPC1	16.0	12.0	7.8	26,400	218500369
JHE60C5CH2SS1	-	15.2	12.0	8.1	26,400	214425107
JHC60D5CH2SS1	-	15.2	12.0	8.1	26,400	214425532
JHE60D5CH2SS1	-	15.2	12.0	8.1	26,200	214425534
JHC60C5CH2SS1	-	15.2	11.7	8.1	26,600	214425979
CTM60C5CHS1	Y82E100C20LMPS1	15.2	12.0	8.1	26,200	216437616
CTM60C5CHS1	Y81E120C16SMPS1	15.2	12.0	8.1	26,400	214424784
CTM60D5CHS1+JME18D2SN1	-	15.2	12.0	8.1	26,200	214424781
CTM60D5CHS1+JMET18DS2N1	-	15.2	12.0	8.1	26,200	214424902
CTM60C5CHS1	Y81E100C16SMPS1	15.2	11.7	8.1	26,600	214424852
CTM60C5CHS1+JMET16CS2N1	-	15.2	12.0	8.1	26,400	214424900
CTM60D5CHS1	Y81E130D20SMPS1	15.2	12.0	8.1	26,400	214424854
CTM60C5CHS1	Y81E080C20SMPS1	15.2	12.0	8.1	26,200	214425020
CTM60D5CHS1+JMVT20DC2N1	-	15.2	12.0	8.1	26,200	214425304
CTM60C5CHS1+JMC16C2SN1	-	15.2	12.0	8.1	26,200	214425302
CTM60C5CHS1	Y81E120C20SMPS1	15.2	12.0	8.1	26,200	214425536
CTM60C5CHS1	Y81E100C20SMPS1	15.2	12.0	8.1	26,200	214425437
CTM60C5CHS1+JME16C2SN1	-	15.2	12.0	8.1	26,200	214425672
CTM60D5CHS1+JMC20D2SN1	-	15.2	12.0	8.1	26,200	214425782
CTM60C5CHS1+JMC17C2SN1	-	15.2	12.0	8.1	26,200	214425983
CTM60C5CHS1+JMVT17CC2N1	-	15.2	12.0	8.1	26,200	214425981
CTM60C5CHS1+JMVT16CC2N1	-	15.2	12.0	8.1	26,200	214430029
CTM60C5CHS1+JME12C2SN1	-	15.2	12.0	8.1	25,800	214430037
CTF60C5CHS1	Y81E120C16SMPS1	15.2	11.7	8.1	26,400	214425609
CTF60D5CHS1+JME18D2SN1	-	15.2	12.0	8.1	26,000	214425674
CTF60D5CHS1+JMC20D2SN1	-	15.2	12.0	8.1	26,200	214424780
CTF60D5CHS1+JMVT20DC2N1	-	15.2	12.0	8.1	26,200	214425015
CTF60D5CHS1+JMET18DS2N1	-	15.2	12.0	8.1	26,000	214425110
CTF60C5CHS1+JME16C2SN1	-	15.2	12.0	8.1	26,000	214425197
CTF60C5CHS1	Y81E100C20SMPS1	15.2	11.7	8.1	26,200	214425163
CTF60D5CHS1	Y81E130D20SMPS1	15.2	11.7	8.1	26,600	214425278
CTF60C5CHS1+JMET16CS2N1	-	15.2	11.7	8.1	26,200	214425538
CTU60D5XHS1+TXV	Y81E130D20SMPS1	15.2	11.7	8.1	26,600	214650207
CTU60D5XHS1+JMET18DS2N1+TXV	-	15.2	12.0	8.1	26,000	214807463
CTU60D5XHS1+JMVT20DC2N1+TXV	-	15.2	12.0	8.1	26,200	214807464
CTU60D5XHS1+JME18D2SN1+TXV	-	15.2	12.0	8.1	26,000	214807466
CTU60D5XHS1+JMC20D2SN1+TXV	-	15.2	12.0	8.1	26,200	214807465
CTM60C5CHS1	Y81E100C20LMPS1	15.2	12.0	8.1	26,200	216780642
CTM60C5CHS1	Y81E080C20LMPS1	15.2	12.0	8.1	26,200	216779920
CTM60C5CHS1	Y81E120C20LMPS1	15.2	12.0	8.1	26,200	216780779
CTF60C5CHS1	Y81E120C16LMPS1	15.2	11.7	8.1	26,400	216780928
CTF60C5CHS1	Y81E100C20LMPS1	15.2	11.7	8.1	26,200	216780346
CTF60D5CHS1	Y81E130D20LMPS1	15.2	11.7	8.1	26,600	216780351
CTU60D5XHS1+TXV	Y81E130D20LMPS1	15.2	11.7	8.1	26,600	216780356
CTM60C5CHS1	Y81E120C16LMPS1	15.2	12.0	8.1	26,400	216779709
CTM60C5CHS1	Y81E100C16LMPS1	15.2	11.7	8.1	26,600	216779714
CTM60D5CHS1	Y81E130D20LMPS1	15.2	12.0	8.1	26,400	216779720
JHE60C5CH2SS2	-	15.2	12.0	8.1	26,400	218456674
JHE60D5CH2SS2	-	15.2	12.0	8.1	26,200	218456672
CTM60D5CHS2+JMC20D2SN1	-	15.2	12.0	8.1	26,200	218500906
CTM60D5CHS2	Y81E130D20LMPS1	15.2	12.0	8.1	26,400	218500904

Yearly running cost in 10 large cities$1,380-$3,639

Phoenix, AZ$1,694/yr
Miami, FL$1,380/yr
Houston, TX$1,518/yr
Atlanta, GA$1,527/yr
Los Angeles, CA$1,484/yr
New York, NY$3,639/yr
Chicago, IL$2,952/yr
Denver, CO$2,453/yr
Seattle, WA$1,506/yr
Minneapolis, MN$3,035/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 York YH548E2S11?: The York YH548E2S11 is rated at up to 16.0 SEER2 and 12.0 EER2 for cooling and up to 8.1 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 381 certified matchups SEER2 ranges from 15.2-16.0.
Is the York YH548E2S11 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 4-ton model.
How much does the York YH548E2S11 cost to run per year?: At its rated efficiency it costs about $1,380-$3,639 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,694 in Phoenix and $3,035 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 York YH548E2S11?: ENERGY STAR lists 381 certified combinations for this outdoor unit. The highest-rated ones use CTM60C5CHS1, CTF60C5CHS1, CTM60C5CHS2.
What refrigerant does the York YH548E2S11 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 $1,677/yrYou save $738/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 York YH548E2S11

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: $1,677
Current system, per year: $2,415
You save per year: $738
Payback: 23.7 years
Net after 10 years: -$10,117

Cooling $1,034Heating $643Electricity used: 10,481 kWhSaved vs. a minimum-efficiency heat pump: $174

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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Maytag PSH4BF5M2SX48K16.0 SEER2 · 8.0 HSPF2
Sure SP15AY48AJ2N · cold climate16.0 SEER2 · 8.1 HSPF2
NORDYNE SH4BF5M2SX48K16.0 SEER2 · 8.0 HSPF2
Rheem WP15AY48AJ2N · cold climate16.0 SEER2 · 8.1 HSPF2
Century HRG1860S1P16.0 SEER2 · 7.8 HSPF2

See all 319 4 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of September 22, 2026. How we use the data.