What is the SEER2 rating of the Comfort-Aire HSA1448S1-**A?

The Comfort-Aire HSA1448S1-**A is rated at up to 15.2 SEER2 and 12.8 EER2 for cooling and up to 8.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.

Is the Comfort-Aire HSA1448S1-**A 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 Comfort-Aire HSA1448S1-**A cost to run per year?

At its rated efficiency it costs about $1,480-$3,728 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,793 in Phoenix and $3,090 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 Comfort-Aire HSA1448S1-**A?

ENERGY STAR lists 14 certified combinations for this outdoor unit. The highest-rated ones use 7E[C,U]60CX-**+TDR, 7E[C,U]49CX-**+TDR.

4-ton central heat pump · HSA14 Series

Comfort-Aire HSA1448S1-**A

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

Ranks #314 of 319 4 ton central heat pumps for cooling efficiency, and costs about $1,582 a year to run in a mixed climate like Atlanta.

SEER2: 15.2 Cooling efficiency over a season
Below average · beats 6%
HSPF2: 8.0 Heating efficiency over a season
Below average · beats 12%
EER2: 12.8 Cooling efficiency on a 95°F day
Very good · beats 85%
Heat at 5°F: 24,200 BTU/h51% of its 47°F output
Average · beats 67%

A good fit if…

You want a choice of indoor units - 14 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.
Comfort and noise matter - a single-stage compressor runs only full-on or off.

Calculate my running cost

Details

Specifications4 ton, R-454B

General
Brand	Comfort-Aire
Also sold as	Century
Outdoor unit model	HSA1448S1-**A
Series	HSA14 Series
Type	Central heat pump
Nominal size	4 ton
CompressorVariable-speed units run longer at low power	Single stage
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	October 1, 2024
Last certified	October 27, 2025
Cooling
SEER2Seasonal efficiency, higher is better	15.2 (range 15.2)
EER2Efficiency at 95°F outdoors	12.8
Cooling capacity	48,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	7.8-8.0
Capacity at 47°F	46,000-47,000 BTU/h
Capacity at 17°F	29,800-30,200 BTU/h
Capacity at 5°F	23,800-24,200 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.12-2.14
ENERGY STAR cold climate	No

Heating output as it gets colder51% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with 7E[C,U]60CX-**+TDR at the standard test temperatures, in BTU/h:

Certified matchups14 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.
7E[C,U]60CX-**+TDR	GUH80C090C5MP*	15.2	12.8	8.0	24,200	216372740
7E[C,U]60CX-**+TDR	GUH80C110C5MP*	15.2	12.8	8.0	24,000	216372741
7E[C,U]60CX-**+TDR	GUH92C090C4MP*	15.2	12.8	8.0	24,200	216372742
7E[C,U]60CX-**+TDR	GUH92C110C4MP*	15.2	12.8	8.0	23,800	216372743
7E[C,U]60CX-**+TDR	GUH92C110C5MP*	15.2	12.8	8.0	24,000	216372744
7E[C,U]60CX-**+TDR	GUH96C090C4MP*	15.2	12.8	8.0	24,200	216372745
7E[C,U]60CX-**+TDR	GUH80C110C5MP*	15.2	12.8	8.0	24,000	216372635
7E[C,U]60CX-**+TDR	GUH92C110C4MP*	15.2	12.8	8.0	23,800	216372637
7E[C,U]60CX-**+TDR	GUH92C110C5MP*	15.2	12.8	8.0	24,000	216372638
7E[C,U]60CX-**+TDR	GUH96C090C4MP*	15.2	12.8	8.0	24,200	216372639
7E[C,U]60CX-**+TDR	GUH80C090C5MP*	15.2	12.8	8.0	24,200	216372634
7E[C,U]60CX-**+TDR	GUH92C090C4MP*	15.2	12.8	8.0	24,200	216372636
7E[C,U]49CX-**+TDR	GUH92C110C4MP*	15.2	12.8	7.8	24,000	216372739
7E[C,U]49CX-**+TDR	GUH92C110C4MP*	15.2	12.8	7.8	24,000	216372633

Yearly running cost in 10 large cities$1,480-$3,728

Phoenix, AZ$1,793/yr
Miami, FL$1,480/yr
Houston, TX$1,606/yr
Atlanta, GA$1,582/yr
Los Angeles, CA$1,530/yr
New York, NY$3,728/yr
Chicago, IL$3,017/yr
Denver, CO$2,500/yr
Seattle, WA$1,530/yr
Minneapolis, MN$3,090/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 Comfort-Aire HSA1448S1-**A?: The Comfort-Aire HSA1448S1-**A is rated at up to 15.2 SEER2 and 12.8 EER2 for cooling and up to 8.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
Is the Comfort-Aire HSA1448S1-**A 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 Comfort-Aire HSA1448S1-**A cost to run per year?: At its rated efficiency it costs about $1,480-$3,728 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,793 in Phoenix and $3,090 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 Comfort-Aire HSA1448S1-**A?: ENERGY STAR lists 14 certified combinations for this outdoor unit. The highest-rated ones use 7E[C,U]60CX-**+TDR, 7E[C,U]49CX-**+TDR.
What refrigerant does the Comfort-Aire HSA1448S1-**A 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 $1,763/yrYou save $688/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 Comfort-Aire HSA1448S1-**A

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: $1,763
Current system, per year: $2,450
You save per year: $688
Payback: 26.2 years
Net after 10 years: -$11,121

Cooling $1,112Heating $651Electricity used: 11,016 kWhSaved vs. a minimum-efficiency heat pump: $113

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

TCL THH60HAI2NAF2U23 · cold climate15.2 SEER2 · 8.1 HSPF2
Daikin DH5SEA4810A15.2 SEER2 · 7.8 HSPF2
Sure SP15AZ48AJ2N · cold climate15.2 SEER2 · 8.1 HSPF2
Friedrich FRP14AY48AJ2N15.2 SEER2 · 7.8 HSPF2
Samsung AC048FCUDCG · cold climate15.2 SEER2 · 8.1 HSPF2
Fujitsu FOP1548TJAYNA15.2 SEER2 · 7.8 HSPF2
Rheem WP15AZ48AJ2N · cold climate15.2 SEER2 · 8.1 HSPF2
Ruud RP14AY48AJ2N15.2 SEER2 · 7.8 HSPF2

See all 319 4 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of October 27, 2025. How we use the data.