What is the SEER2 rating of the Rheem RP14AY42AJ2N?

The Rheem RP14AY42AJ2N is rated at up to 15.2 SEER2 and 11.7 EER2 for cooling and up to 7.8 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.

Is the Rheem RP14AY42AJ2N 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 3.5-ton model.

How much does the Rheem RP14AY42AJ2N cost to run per year?

At its rated efficiency it costs about $1,236-$3,252 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,516 in Phoenix and $2,712 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

Is the Rheem RP14AY42AJ2N the same as the RUSSELL SP14AY42AJ2N?

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 Rheem RP14AY42AJ2N?

ENERGY STAR lists 12 certified combinations for this outdoor unit. The highest-rated one uses RCFY4824STANM.

3.5-ton central heat pump · CLASSIC SERIES

Rheem RP14AY42AJ2N

Below average cooling and heating efficiency for a 3.5-ton central heat pump, but not rated for cold climates.

Ranks #136 of 138 3.5 ton central heat pumps for cooling efficiency, and costs about $1,366 a year to run in a mixed climate like Atlanta.

SEER2: 15.2 Cooling efficiency over a season
Below average · beats 6%
HSPF2: 7.8 Heating efficiency over a season
Below average · beats 5%
EER2: 11.7 Cooling efficiency on a 95°F day
Average · beats 43%
Heat at 5°F: 19,900 BTU/h50% of its 47°F output
Average · beats 58%

A good fit if…

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.
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

Specifications3.5 ton, R-454B

General
Brand	Rheem
Also sold as	Ruud, RUSSELL, Sure
Outdoor unit model	RP14AY42AJ2N
Series	CLASSIC SERIES
Type	Central heat pump
Nominal size	3.5 ton
CompressorVariable-speed units run longer at low power	Two-stage
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	April 1, 2024
Last certified	August 20, 2026
Cooling
SEER2Seasonal efficiency, higher is better	15.2 (range 15.2)
EER2Efficiency at 95°F outdoors	11.7
Cooling capacity	40,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	7.8
Capacity at 47°F	40,000 BTU/h
Capacity at 17°F	25,400-25,600 BTU/h
Capacity at 5°F	19,900 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.10
ENERGY STAR cold climate	No

Heating output as it gets colder50% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with RCFY4824STANM at the standard test temperatures, in BTU/h:

Certified matchups12 indoor units

The same outdoor unit scores differently with each indoor unit and furnace. 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.
RCFY4824STANM	R801V1255A24DZ	15.2	11.7	7.8	-	214592252
RCFY4824STANM	R802V1255A24DZ	15.2	11.7	7.8	-	214592335
RCFY4824STANM	R921V1155A24M4	15.2	11.7	7.8	-	214592384
RCFY4824STANM	R921V1155A24M4	15.2	11.7	7.8	-	214592400
RCFY4824STANM	R951V1155A24M4	15.2	11.7	7.8	-	214592401
RCFY4824STANM	R951V1155A24M4	15.2	11.7	7.8	-	214592440
RCFY4824STANM	R802V1255A24DZ	15.2	11.7	7.8	-	214592343
RCFY4824STANM	R801V1255A24DZ	15.2	11.7	7.8	-	214592102
RCFY4824STANM	R962V1155A24M4	15.2	11.7	7.8	-	216574685
RCFY4824STANM	R962V1155A24M4	15.2	11.7	7.8	-	216574693
RCFY4824STANM	R972V1155A24UPS	15.2	11.7	7.8	19,900	218696152
RCFY4824STANM	R972V1155A24UPS	15.2	11.7	7.8	19,900	218696151

Same unit, other model numbers1

These model numbers have exactly the same certified ratings and matchups as the Rheem RP14AY42AJ2N: the same equipment under another brand, or a variant code for voltage, colour or market. Everything on this page applies to them.

RUSSELL SP14AY42AJ2N

Yearly running cost in 10 large cities$1,236-$3,252

Phoenix, AZ$1,516/yr
Miami, FL$1,236/yr
Houston, TX$1,359/yr
Atlanta, GA$1,366/yr
Los Angeles, CA$1,327/yr
New York, NY$3,252/yr
Chicago, IL$2,638/yr
Denver, CO$2,192/yr
Seattle, WA$1,345/yr
Minneapolis, MN$2,712/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 Rheem RP14AY42AJ2N?: The Rheem RP14AY42AJ2N is rated at up to 15.2 SEER2 and 11.7 EER2 for cooling and up to 7.8 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
Is the Rheem RP14AY42AJ2N 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 3.5-ton model.
How much does the Rheem RP14AY42AJ2N cost to run per year?: At its rated efficiency it costs about $1,236-$3,252 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,516 in Phoenix and $2,712 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Is the Rheem RP14AY42AJ2N the same as the RUSSELL SP14AY42AJ2N?: 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 Rheem RP14AY42AJ2N?: ENERGY STAR lists 12 certified combinations for this outdoor unit. The highest-rated one uses RCFY4824STANM.
What refrigerant does the Rheem RP14AY42AJ2N 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 $1,501/yrYou save $562/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 Rheem RP14AY42AJ2N

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: $2,063
You save per year: $562
Payback: 26.7 years
Net after 10 years: -$9,382

Cooling $926Heating $574Electricity used: 9,379 kWhSaved vs. a minimum-efficiency heat pump: $81

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 3.5 ton models

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WeatherKing WP14AY42AJ2N15.2 SEER2 · 7.8 HSPF2
OXBOX J5HP5042A1000AA15.2 SEER2 · 7.8 HSPF2
Whirlpool WLP15AY42AJ2N15.2 SEER2 · 7.8 HSPF2
Midea MOVC-42HN10-M152L15.2 SEER2 · 7.8 HSPF2
Midea MOVA-48HN10-M152L15.2 SEER2 · 7.8 HSPF2
Midea MOVA-42HN10-M152L15.2 SEER2 · 7.8 HSPF2
Fujitsu FOP1442TJAYNA15.2 SEER2 · 7.8 HSPF2

See all 138 3.5 ton central heat pumps, ranked

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