What is the SEER2 rating of the Century HSA1936V1-**A?

The Century HSA1936V1-**A is rated at up to 20.0 SEER2 and 13.2 EER2 for cooling and up to 8.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 142 certified matchups SEER2 ranges from 15.2-20.0.

Is the Century HSA1936V1-**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 2-ton model.

How much does the Century HSA1936V1-**A cost to run per year?

At its rated efficiency it costs about $567-$1,731 a year in electricity in large U.S. cities, depending on climate and local rates - for example $729 in Phoenix and $1,469 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 Century HSA1936V1-**A?

ENERGY STAR lists 142 certified combinations for this outdoor unit. The highest-rated ones use 7E[C,U]24BX-**+TDR, HMA30VX1*-, 7E[C,U]30BX-**+TDR.

2-ton central heat pump · HSA19 Series

Century HSA1936V1-**A

Excellent cooling efficiency and below average heating efficiency for a 2-ton central heat pump, but not rated for cold climates.

Ranks #33 of 331 2 ton central heat pumps for cooling efficiency, and costs about $703 a year to run in a mixed climate like Atlanta.

SEER2: 20.0 Cooling efficiency over a season
Excellent · beats 94%
HSPF2: 8.5 Heating efficiency over a season
Below average · beats 38%
EER2: 13.2 Cooling efficiency on a 95°F day
Excellent · beats 93%
Heat at 5°F: 17,000 BTU/h68% of its 47°F output
Average · beats 65%

A good fit if…

You want low cooling bills - its SEER2 beats 94% of central heat pumps.
You want steady temperatures and quiet running - the compressor varies its speed.
You want a choice of indoor units - 142 certified pairings.

Think twice if…

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

Calculate my running cost

Details

Specifications2 ton, R-454B

General
Brand	Century
Also sold as	Comfort-Aire
Outdoor unit model	HSA1936V1-**A
Series	HSA19 Series
Type	Central heat pump
Nominal size	2 ton
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	June 3, 2025
Last certified	September 30, 2026
Cooling
SEER2Seasonal efficiency, higher is better	20.0 (range 15.2-20.0)
EER2Efficiency at 95°F outdoors	11.0-13.2
Cooling capacity	21,600-35,200 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	7.8-8.5
Capacity at 47°F	22,800-36,000 BTU/h
Capacity at 17°F	14,600-21,600 BTU/h
Capacity at 5°F	13,700-17,000 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	1.48-2.12
ENERGY STAR cold climate	No

Heating output as it gets colder68% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with 7E[C,U]24BX-**+TDR at the standard test temperatures, in BTU/h:

Certified matchups142 indoor units

The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 142 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.
7E[C,U]24BX-**+TDR	GUH97T070B3MP	20.0	13.2	8.5	16,400	217547442
7E[C,U]24BX-**+TDR	GUH97T070B3MP	20.0	13.2	8.5	16,400	217547470
HMA30VX1*-	-	20.0	13.0	8.2	15,800	217504306
HMA30VX1*-	-	20.0	13.0	8.2	15,800	217504690
7E[C,U]30BX-**+TDR	GUH97T070B3MP	20.0	13.0	8.1	13,800	217547446
7E[C,U]30BX-**+TDR	GUH97T070B3MP	20.0	13.0	8.1	13,800	217547474
7E[C,U]24AX-**+TDR	GUH80X040A3MP	19.5	13.0	8.5	16,500	217504264
7E[C,U]24AX-**+TDR	GUH80X060A3MP	19.5	13.0	8.5	16,500	217504266
7E[C,U]24AX-**+TDR	GUH80X040A3MP	19.5	13.0	8.5	16,500	217504654
7E[C,U]24AX-**+TDR	GUH80X060A3MP	19.5	13.0	8.5	16,500	217504656
7E[C,U]36BX-**+TDR	GUH97T070B3MP	19.5	13.2	8.5	15,100	217547475
7E[C,U]36BX-**+TDR	GUH97T070B3MP	19.5	13.2	8.5	15,100	217547447
HMA30CX1*-	-	19.5	13.0	8.5	15,800	217662740
HMA24CX1*-	-	19.5	13.0	8.5	15,600	217662742
HMA30CX1*-	-	19.5	13.0	8.5	15,800	217662745
HMA24CX1*-	-	19.5	13.0	8.5	15,600	217662738
7E[C,U]24AX-**+TDR	GUH80C045A3MP	19.0	13.0	8.5	16,200	217504269
7E[C,U]24BX-**+TDR	GUH92C045B3MP	19.0	13.0	8.5	16,600	217504251
7E[C,U]24BX-**+TDR	GUH92C070B3MP	19.0	13.0	8.5	16,500	217504253
7E[C,U]24BX-**+TDR	GUH97T045B3MP	19.0	13.0	8.5	16,400	217504260
7E[C,U]24BX-**+TDR	GUH92C045B3MP	19.0	13.0	8.5	16,600	217504642
7E[C,U]24BX-**+TDR	GUH92C070B3MP	19.0	13.0	8.5	16,500	217504644
7E[C,U]24BX-**+TDR	GUH97T045B3MP	19.0	13.0	8.5	16,400	217504650
7E[C,U]24AX-**+TDR	GUH80C045A3MP	19.0	13.0	8.5	16,200	217504658
HMA24VX1*-	-	19.0	12.8	8.2	15,600	217504017
7E[C,U]30BX-**+TDR	GUH92C045B3MP	19.0	12.6	8.2	14,100	217504275
7E[C,U]30BX-**+TDR	GUH92C070B3MP	19.0	12.8	8.2	14,000	217504277
7E[C,U]30AX-**+TDR	GUH80C045A3MP	19.0	13.0	8.2	13,700	217504302
7E[C,U]30AX-**+TDR	GUH80X040A3MP	19.0	12.8	8.2	14,000	217504298
7E[C,U]30AX-**+TDR	GUH80X060A3MP	19.0	12.8	8.2	14,000	217504300
HMA24VX1*-	-	19.0	12.8	8.2	15,600	217504395
7E[C,U]30AX-**+TDR	GUH80C045A3MP	19.0	13.0	8.2	13,700	217504687
7E[C,U]30BX-**+TDR	GUH92C045B3MP	19.0	12.6	8.2	14,100	217504663
7E[C,U]30AX-**+TDR	GUH80X060A3MP	19.0	12.8	8.2	14,000	217504685
7E[C,U]30AX-**+TDR	GUH80X040A3MP	19.0	12.8	8.2	14,000	217504684
7E[C,U]30BX-**+TDR	GUH92C070B3MP	19.0	12.8	8.2	14,000	217504665
7E[C,U]30BX-**+TDR	GUH97T045B3MP	19.0	13.0	8.1	13,800	217504282
7E[C,U]30BX-**+TDR	GUH97T045B3MP	19.0	13.0	8.1	13,800	217504670
7E[C,U]24BX-**+TDR	GUH80C070B3MP	18.5	13.0	8.5	16,300	217504248
7E[C,U]24BX-**+TDR	GUH96C070B3MP	18.5	13.0	8.5	16,500	217504258
7E[C,U]24BX-**+TDR	GUH80C070B3MP	18.5	13.0	8.5	16,300	217504641
7E[C,U]24BX-**+TDR	GUH96C070B3MP	18.5	13.0	8.5	16,500	217504648
7E[C,U]36BX-**+TDR	GUH92C070B3MP	18.5	11.0	8.2	14,800	217504023
7E[C,U]36AX-**+TDR	GUH80X040A3MP	18.5	11.0	8.2	14,900	217504026
7E[C,U]36AX-**+TDR	GUH80C045A3MP	18.5	11.0	8.2	14,900	217504028
7E[C,U]36AX-**+TDR	GUH80X060A3MP	18.5	11.0	8.2	14,900	217504027
7E[C,U]30BX-**+TDR	GUH80C070B3MP	18.5	13.0	8.2	13,800	217504273
7E[C,U]36BX-**+TDR	GUH92C070B3MP	18.5	11.0	8.2	14,800	217504406
7E[C,U]36AX-**+TDR	GUH80X040A3MP	18.5	11.0	8.2	14,900	217504413
7E[C,U]36AX-**+TDR	GUH80X060A3MP	18.5	11.0	8.2	14,900	217504415
7E[C,U]36AX-**+TDR	GUH80C045A3MP	18.5	11.0	8.2	14,900	217504416
7E[C,U]30BX-**+TDR	GUH80C070B3MP	18.5	13.0	8.2	13,800	217504661
7EH30BX-**+TDR	GUH97T070B3MP	18.5	12.4	8.2	15,100	217547451
7EH30BX-**+TDR	GUH97T070B3MP	18.5	12.4	8.2	15,100	217547479
7E[C,U]24AX-**+TDR	GUH80C070A3MP	18.0	13.0	8.5	16,400	217504271
7E[C,U]36BX-**+TDR	GUH96C045B3MP	18.0	12.6	8.5	15,500	217504015
7E[C,U]36BX-**+TDR	GUH96C045B3MP	18.0	12.6	8.5	15,500	217504390
7E[C,U]24BX-**+TDR	GUH96C045B3MP	18.0	12.8	8.5	16,700	217504646
7E[C,U]24AX-**+TDR	GUH80C070A3MP	18.0	13.0	8.5	16,400	217504659
7E[C,U]24BX-**+TDR	GUH96C045B3MP	18.0	12.8	8.5	16,700	217504255

Yearly running cost in 10 large cities$567-$1,731

Phoenix, AZ$729/yr
Miami, FL$567/yr
Houston, TX$654/yr
Atlanta, GA$703/yr
Los Angeles, CA$693/yr
New York, NY$1,731/yr
Chicago, IL$1,415/yr
Denver, CO$1,184/yr
Seattle, WA$734/yr
Minneapolis, MN$1,469/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 Century HSA1936V1-**A?: The Century HSA1936V1-**A is rated at up to 20.0 SEER2 and 13.2 EER2 for cooling and up to 8.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 142 certified matchups SEER2 ranges from 15.2-20.0.
Is the Century HSA1936V1-**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 2-ton model.
How much does the Century HSA1936V1-**A cost to run per year?: At its rated efficiency it costs about $567-$1,731 a year in electricity in large U.S. cities, depending on climate and local rates - for example $729 in Phoenix and $1,469 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 Century HSA1936V1-**A?: ENERGY STAR lists 142 certified combinations for this outdoor unit. The highest-rated ones use 7E[C,U]24BX-**+TDR, HMA30VX1*-, 7E[C,U]30BX-**+TDR.
What refrigerant does the Century HSA1936V1-**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 $739/yrYou save $499/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 Century HSA1936V1-**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: $739
Current system, per year: $1,238
You save per year: $499
Payback: 18.0 years
Net after 10 years: -$4,011

Cooling $422Heating $316Electricity used: 4,616 kWhSaved vs. a minimum-efficiency heat pump: $211

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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GE NS19H36MA5-**A20.0 SEER2 · 8.5 HSPF2
AC Pro BH719M36P-**A20.0 SEER2 · 8.5 HSPF2
Rheem RP18AZ24AJVC · cold climate20.0 SEER2 · 8.5 HSPF2
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See all 331 2 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of September 30, 2026. How we use the data.