Tempstar heat pump

B5H0V36*K*AAA*

Ducted split systemVariable-speed (inverter)ENERGY STAR cold-climateENERGY STAR Most Efficient (some pairings)

The Tempstar B5H0V36*K*AAA* is a ducted split system heat pump outdoor unit with a rated cooling capacity of 35,400 BTU/h (about 3 tons) and a variable-speed (inverter) compressor running on R-454B refrigerant. ENERGY STAR lists 269 certified indoor-unit pairings for it. In cold weather it still delivers 25,800 BTU/h at 5°F — 72% of its 47°F output, close to the 76% median across the 308 models we track (better than 42% of them). Its HSPF2 of 9.5 is higher than 61% of models in our database, and its best certified SEER2 of 19.5 beats 69%.

Our take in 30 seconds

Best for: mixed climates with occasional hard freezes

Strengths

  • Variable-speed compressor: quieter, steadier temperatures and better humidity control
  • Uses newer, lower-impact R-454B refrigerant
  • Also sold under 7 other badges, so you can compare more quotes for the same unit

Good to know

  • Efficiency depends on the indoor unit: SEER2 ranges 16–19.5, so ask which pairing you're quoted
Est. yearly cost
$1,543
U.S. average rates
SEER2
16–19.5
Cooling efficiency
HSPF2
9.5
Top 39% heating efficiency
Heat kept at 5°F
72%
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 (16) and HSPF2 (9.5). 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 Tempstar B5H0V36*K*AAA* at the three ENERGY STAR test temperatures (cooling capacity is 35,400 BTU/h for reference).

47°F
36,000 BTU/h
17°F
31,200 BTU/h
5°F
25,800 BTU/h

Retention at 17°F: 87% · at 5°F: 72%. Learn how to use these numbers in our cold-climate guide.

Estimated running cost in every state

Same unit, very different bills: from about $911 a year in Louisiana to $3,448 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¢$341$569$911
Florida14.99¢$256$796$1,052
Washington14.63¢$942$113$1,056
Mississippi14.43¢$492$575$1,067
Nevada12.72¢$578$507$1,085
Tennessee13.42¢$712$386$1,098
Oregon15.92¢$965$159$1,124
Arizona15.05¢$399$733$1,132
North Carolina14.95¢$736$430$1,166
Kentucky13.80¢$837$336$1,173
Arkansas14.37¢$708$477$1,185
South Carolina15.76¢$657$558$1,215
Utah13.31¢$958$265$1,223
Georgia15.90¢$663$563$1,226
Texas15.91¢$543$704$1,247
Alabama16.33¢$681$578$1,259
Idaho13.37¢$1,064$207$1,271
Oklahoma14.82¢$786$492$1,278
New Mexico16.51¢$938$365$1,304
Nebraska13.54¢$1,077$270$1,347
West Virginia16.31¢$1,113$289$1,401
Missouri16.02¢$1,032$390$1,422
Kansas15.47¢$1,055$377$1,432
Virginia17.64¢$1,003$429$1,432
Wyoming14.43¢$1,367$160$1,527
Colorado17.17¢$1,301$266$1,567
North Dakota13.31¢$1,463$133$1,595
Indiana17.02¢$1,290$320$1,610
Delaware18.70¢$1,205$414$1,618
Montana15.57¢$1,475$155$1,630
South Dakota15.15¢$1,435$218$1,653
California29.75¢$1,015$658$1,673
Iowa17.06¢$1,487$283$1,770
Ohio19.38¢$1,469$343$1,812
Maryland21.40¢$1,379$473$1,852
Illinois19.32¢$1,537$342$1,879
Minnesota17.20¢$1,760$209$1,969
Pennsylvania21.77¢$1,650$385$2,035
Wisconsin19.41¢$1,839$258$2,097
New Jersey24.61¢$1,679$490$2,169
District of Columbia25.98¢$1,575$632$2,207
Connecticut24.51¢$2,043$352$2,396
Michigan22.99¢$2,091$305$2,396
Vermont23.84¢$2,349$237$2,586
Rhode Island28.18¢$2,349$374$2,723
New York28.65¢$2,389$412$2,801
Hawaii47.18¢$89$2,714$2,803
New Hampshire27.64¢$2,619$306$2,924
Massachusetts30.48¢$2,657$405$3,061
Alaska29.41¢$3,343$65$3,409
Maine32.11¢$3,164$284$3,448
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Same equipment sold under other brands

These listings share the same certifying manufacturer (Carrier Corporation) 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.

  • Airquest B5H0V36*K*AAA*
  • Arcoaire B5H0V36*K*AAA*
  • Comfortmaker B5H0V36*K*AAA*
  • Day & Night B5H0V36*K*AAA*

Plus 3 more identical listings 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 Tempstar B5H0V36*K*AAA* at U.S.-average rates.

ModelCooling BTU/hSEER2HSPF25°F keptEst. yearly cost
Ruud UP19AY36AJVC34,20019–211087%$1,353 (−$190)Compare
Bryant 37MUHAQ36AA336,00015.8–1810.3103%$1,527 (−$16)Compare
Daikin DH9VSA361CA*34,20016.9–2110100%$1,398 (−$145)Compare
Panasonic CU-HM36BAHU36,00015.6–17.410.3103%$1,533 (−$10)Compare
MrCool CENTRAL-36-HP-C-230B00-O36,00015.2–17.410.3103%$1,545 (+$2)Compare
Midea MO1SE-H36B-2A36,00015.2–1810.3103%$1,545 (+$2)Compare

Full specifications

BrandTempstar
Outdoor modelB5H0V36*K*AAA*
Certified byCarrier Corporation
Product typeDucted split system
CompressorVariable-speed (inverter)
RefrigerantR-454B
Cooling capacity35,400 BTU/h
Nominal size3 tons
SEER2 (certified range)16 – 19.5
EER2 (best)11.5
HSPF2 (best)9.5
Heating capacity @ 47°F36,000 BTU/h
Heating capacity @ 17°F31,200 BTU/h
Heating capacity @ 5°F25,800 BTU/h
COP @ 5°F2.04
ENERGY STAR cold-climateYes
Certified indoor pairings269
Latest certification2026-09

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 Tempstar B5H0V36*K*AAA* 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 $1,543 per year ($1,101 heating, $442 cooling). It ranges from about $911 in Louisiana to $3,448 in Maine.

Does the Tempstar B5H0V36*K*AAA* work in cold weather?

Yes. It is ENERGY STAR cold-climate certified and delivers 25,800 BTU/h at 5°F, 72% of its 47°F capacity, with a COP of 2.04 at 5°F.

What size is the Tempstar B5H0V36*K*AAA*?

It is rated at 35,400 BTU/h of cooling, roughly 3 tons, and 36,000 BTU/h of heating at 47°F. Proper sizing should be confirmed with a Manual J load calculation.

Is the Tempstar B5H0V36*K*AAA* the same as the Airquest B5H0V36*K*AAA*?

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

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