York heat pump

YH636E2S11

Ducted split systemTwo-stageENERGY STAR Most Efficient (some pairings)

The York YH636E2S11 is a ducted split system heat pump outdoor unit with a rated cooling capacity of 36,000 BTU/h (about 3 tons) and a two-stage compressor running on R-454B refrigerant. ENERGY STAR lists 497 certified indoor-unit pairings for it. In cold weather it still delivers 19,800 BTU/h at 5°F — 55% of its 47°F output, below the 76% median across the 308 models we track (better than 24% of them). Its HSPF2 of 8.5 is higher than 33% of models in our database, and its best certified SEER2 of 17 beats 33%.

Our take in 30 seconds

Best for: mild climates or homes with backup heat

Strengths

  • Uses newer, lower-impact R-454B refrigerant
  • Also sold under 5 other badges, so you can compare more quotes for the same unit

Good to know

  • Only 55% of its heat output remains at 5°F; plan on backup heat in hard freezes
Est. yearly cost
$1,711
U.S. average rates
SEER2
15.2–17
Cooling efficiency
HSPF2
8.5
Top 67% heating efficiency
Heat kept at 5°F
55%
Median is 76%
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Running-cost calculator

Pre-filled with EIA prices · edit any field
Estimated annual cost
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Heating
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Cooling
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Uses the base certified SEER2 (15.2) and HSPF2 (8.5). Assumes the unit is correctly sized. How we calculate.

Heating capacity as it gets colder

A heat pump's output falls as outdoor temperature drops. This is the certified heat output of the York YH636E2S11 at the three ENERGY STAR test temperatures (cooling capacity is 36,000 BTU/h for reference).

47°F
36,200 BTU/h
17°F
23,800 BTU/h
5°F
19,800 BTU/h

Retention at 17°F: 66% · at 5°F: 55%. Learn how to use these numbers in our cold-climate guide.

Estimated running cost in every state

Same unit, very different bills: from about $993 a year in Louisiana to $3,860 in Maine, driven by local electricity prices and how much heating or cooling the climate needs. Click a column to sort.

StatePriceHeatingCoolingTotal / yr
Louisiana12.87¢$384$610$993
Florida14.99¢$287$852$1,139
Mississippi14.43¢$553$615$1,168
Washington14.63¢$1,059$121$1,180
Nevada12.72¢$650$542$1,192
Tennessee13.42¢$800$413$1,213
Arizona15.05¢$449$784$1,233
Oregon15.92¢$1,085$170$1,254
North Carolina14.95¢$828$460$1,288
Kentucky13.80¢$940$360$1,300
Arkansas14.37¢$796$511$1,306
South Carolina15.76¢$738$597$1,336
Georgia15.90¢$745$603$1,347
Utah13.31¢$1,077$284$1,361
Texas15.91¢$610$754$1,363
Alabama16.33¢$765$619$1,384
Oklahoma14.82¢$884$526$1,410
Idaho13.37¢$1,196$222$1,417
New Mexico16.51¢$1,055$391$1,446
Nebraska13.54¢$1,211$289$1,500
West Virginia16.31¢$1,250$309$1,559
Missouri16.02¢$1,160$417$1,577
Virginia17.64¢$1,127$460$1,586
Kansas15.47¢$1,186$403$1,589
Wyoming14.43¢$1,536$171$1,707
Colorado17.17¢$1,462$285$1,747
North Dakota13.31¢$1,644$142$1,786
Indiana17.02¢$1,450$343$1,792
Delaware18.70¢$1,354$443$1,797
Montana15.57¢$1,658$166$1,824
California29.75¢$1,140$705$1,845
South Dakota15.15¢$1,613$233$1,846
Iowa17.06¢$1,671$303$1,974
Ohio19.38¢$1,651$367$2,018
Maryland21.40¢$1,549$507$2,056
Illinois19.32¢$1,728$366$2,094
Minnesota17.20¢$1,978$224$2,202
Pennsylvania21.77¢$1,854$412$2,267
Wisconsin19.41¢$2,067$276$2,342
New Jersey24.61¢$1,887$525$2,411
District of Columbia25.98¢$1,770$677$2,447
Connecticut24.51¢$2,296$377$2,674
Michigan22.99¢$2,350$327$2,677
Vermont23.84¢$2,640$254$2,894
Hawaii47.18¢$100$2,905$3,006
Rhode Island28.18¢$2,640$400$3,041
New York28.65¢$2,684$441$3,125
New Hampshire27.64¢$2,943$327$3,270
Massachusetts30.48¢$2,986$433$3,419
Alaska29.41¢$3,758$70$3,827
Maine32.11¢$3,556$304$3,860
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Same equipment sold under other brands

These listings share the same certifying manufacturer (Johnson Controls, Inc.) and identical certified capacities and efficiency ratings, so they are almost certainly the same hardware with a different badge. If you get quotes for any of them, you are comparing installation price and warranty, not equipment. How rebadging works.

  • Champion XH636E2S11
  • Coleman XH636E2S11
  • Fraser-Johnston XH636E2S11
  • Johnson Controls XH636E2S11

Plus 1 more identical listing in the ENERGY STAR database.

Similar-size alternatives

Other ducted split system units within ±15% of this model's cooling capacity, sorted by efficiency. Cost difference is versus the York YH636E2S11 at U.S.-average rates.

ModelCooling BTU/hSEER2HSPF25°F keptEst. yearly cost
Ruud UP19AY36AJVC34,20019–211087%$1,353 (−$357)Compare
Bryant 37MUHAQ36AA336,00015.8–1810.3103%$1,527 (−$183)Compare
Daikin DH9VSA361CA*34,20016.9–2110100%$1,398 (−$313)Compare
Panasonic CU-HM36BAHU36,00015.6–17.410.3103%$1,533 (−$178)Compare
MrCool CENTRAL-36-HP-C-230B00-O36,00015.2–17.410.3103%$1,545 (−$165)Compare
Midea MO1SE-H36B-2A36,00015.2–1810.3103%$1,545 (−$165)Compare

Full specifications

BrandYork
Outdoor modelYH636E2S11
Certified byJohnson Controls, Inc.
Product typeDucted split system
CompressorTwo-stage
RefrigerantR-454B
Cooling capacity36,000 BTU/h
Nominal size3 tons
SEER2 (certified range)15.2 – 17
EER2 (best)12
HSPF2 (best)8.5
Heating capacity @ 47°F36,200 BTU/h
Heating capacity @ 17°F23,800 BTU/h
Heating capacity @ 5°F19,800 BTU/h
COP @ 5°F2.5
ENERGY STAR cold-climateNo
Certified indoor pairings497
Latest certification2026-10

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), retrieved November 7, 2026. Capacities and HSPF2 are the highest values across certified pairings; confirm your exact system's AHRI reference number with your installer.

Frequently asked questions

How much does the York YH636E2S11 cost to run per year?

At the U.S. average residential electricity price of 18.16¢/kWh and typical national heating and cooling hours, we estimate about $1,711 per year ($1,237 heating, $473 cooling). It ranges from about $993 in Louisiana to $3,860 in Maine.

Does the York YH636E2S11 work in cold weather?

It is not ENERGY STAR cold-climate certified. It delivers 19,800 BTU/h at 5°F (55% of its 47°F capacity), so in very cold climates expect more reliance on backup heat.

What size is the York YH636E2S11?

It is rated at 36,000 BTU/h of cooling, roughly 3 tons, and 36,200 BTU/h of heating at 47°F. Proper sizing should be confirmed with a Manual J load calculation.

Is the York YH636E2S11 the same as the Champion XH636E2S11?

Very likely. Both are certified by Johnson Controls, Inc. with identical capacities and efficiency ratings in the ENERGY STAR database, which indicates the same equipment sold under different brands.

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