What is the SEER2 rating of the Thermal Zone RHPXYC024AJT?

The Thermal Zone RHPXYC024AJT is rated at up to 15.2 SEER2 and 11.5 EER2 for cooling and up to 7.2 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.

Is the Thermal Zone RHPXYC024AJT 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-ton model.

How much does the Thermal Zone RHPXYC024AJT cost to run per year?

At its rated efficiency it costs about $716-$2,630 a year in electricity in large U.S. cities, depending on climate and local rates - for example $982 in Phoenix and $2,274 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

2-ton packaged heat pump · RHPXYC

Thermal Zone RHPXYC024AJT

Below average cooling and heating efficiency for a 2-ton packaged heat pump, but not rated for cold climates.

Ranks #15 of 17 2 ton packaged heat pumps for cooling efficiency, and costs about $1,031 a year to run in a mixed climate like Atlanta.

SEER2: 15.2 Cooling efficiency over a season
Below average · beats 24%
HSPF2: 7.2 Heating efficiency over a season
Below average · beats 25%
EER2: 11.5 Cooling efficiency on a 95°F day
Average · beats 60%
Heat at 5°F: 14,000 BTU/h44% of its 47°F output
Below average · beats 11%

A good fit if…

You want a certified 2-ton packaged heat pump at a typical efficiency level.

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 packaged heat pumps.
You mainly need heat - its HSPF2 is below average for packaged heat pumps.

Calculate my running cost

Details

Specifications2 ton, R-454B

General
Brand	Thermal Zone
Also sold as	Mainline, Fujitsu, DuraSTAR, Rheem, Friedrich, RUSSELL, Ruud, Sure
Outdoor unit model	RHPXYC024AJT
Series	RHPXYC
Type	Packaged heat pump
Nominal size	2 ton
CompressorVariable-speed units run longer at low power	Two-stage
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	May 1, 2025
Last certified	April 9, 2025
Cooling
SEER2Seasonal efficiency, higher is better	15.2 (range 15.2)
EER2Efficiency at 95°F outdoors	11.5
Cooling capacity	22,800 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	7.2
Capacity at 47°F	32,000 BTU/h
Capacity at 17°F	20,000 BTU/h
Capacity at 5°F	14,000 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	1.70
ENERGY STAR cold climate	No

Heating output as it gets colder44% kept at 5°F

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

Certified matchups9 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.
-	15.2	11.5	7.2	14,000	217200628
-	15.2	11.5	7.2	14,000	217200629
-	15.2	11.5	7.2	14,000	217200630
-	15.2	11.5	7.2	14,000	217200631
-	15.2	11.5	7.2	14,000	217198683
-	15.2	11.5	7.2	14,000	217198684
-	15.2	11.5	7.2	14,000	217198685
-	15.2	11.5	7.2	14,000	217198686
-	15.2	11.5	7.2	14,000	217198687

Yearly running cost in 10 large cities$716-$2,630

Phoenix, AZ$982/yr
Miami, FL$716/yr
Houston, TX$884/yr
Atlanta, GA$1,031/yr
Los Angeles, CA$1,033/yr
New York, NY$2,630/yr
Chicago, IL$2,168/yr
Denver, CO$1,828/yr
Seattle, WA$1,144/yr
Minneapolis, MN$2,274/yr

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

Questions4

What is the SEER2 rating of the Thermal Zone RHPXYC024AJT?: The Thermal Zone RHPXYC024AJT is rated at up to 15.2 SEER2 and 11.5 EER2 for cooling and up to 7.2 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
Is the Thermal Zone RHPXYC024AJT 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-ton model.
How much does the Thermal Zone RHPXYC024AJT cost to run per year?: At its rated efficiency it costs about $716-$2,630 a year in electricity in large U.S. cities, depending on climate and local rates - for example $982 in Phoenix and $2,274 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
What refrigerant does the Thermal Zone RHPXYC024AJT 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 $1,026/yrYou save $300/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 Thermal Zone RHPXYC024AJT

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: $1,026
Current system, per year: $1,326
You save per year: $300
Payback: 28.3 years
Net after 10 years: -$5,496

Cooling $528Heating $498Electricity used: 6,411 kWhSaved vs. a minimum-efficiency heat pump: $13

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 ton models

Rheem RHPXZS024AJT15.2 SEER2 · 7.2 HSPF2
Trane 5WCZ5024A115.2 SEER2 · 7.2 HSPF2
Heil PHB524000K000B15.2 SEER2 · 7.2 HSPF2
York PHE6A242415.2 SEER2 · 7.2 HSPF2
Fujitsu RDFXYC024AJV15.2 SEER2 · 7.2 HSPF2
Day & Night PHR524000K***K115.2 SEER2 · 7.2 HSPF2
CHAMPION HEATING AND COOLING PHG6A240752X415.2 SEER2 · 7.2 HSPF2
Carrier 50VR-K24---3015.2 SEER2 · 7.2 HSPF2

See all 17 2 ton packaged heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of April 9, 2025. How we use the data.