Pioneer heat pump

YN018GMFI22RPE

Mini-split / multi-splitVariable-speed (inverter)ENERGY STAR Most Efficient (some pairings)

The Pioneer YN018GMFI22RPE is a mini-split / multi-split heat pump outdoor unit with a rated cooling capacity of 18,000 BTU/h (about 1.5 tons) and a variable-speed (inverter) compressor running on R-410A refrigerant. ENERGY STAR lists 5 certified indoor-unit pairings for it. In cold weather it still delivers 13,100 BTU/h at 5°F — 66% of its 47°F output, below the 76% median across the 308 models we track (better than 34% of them). Its HSPF2 of 10.7 is higher than 88% of models in our database, and its best certified SEER2 of 23 beats 87%.

Our take in 30 seconds

Best for: mixed climates with occasional hard freezes

Strengths

  • Heating efficiency (HSPF2 10.7) beats 88% of models
  • Cooling efficiency up to SEER2 23, better than 87% of models
  • Variable-speed compressor: quieter, steadier temperatures and better humidity control

Good to know

  • Uses R-410A, a refrigerant being phased down; future service may cost more
  • Efficiency depends on the indoor unit: SEER2 ranges 20–23, so ask which pairing you're quoted
Est. yearly cost
$723
U.S. average rates
SEER2
20–23
Cooling efficiency
HSPF2
10.7
Top 12% heating efficiency
Heat kept at 5°F
66%
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 (20) and HSPF2 (10.7). 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 Pioneer YN018GMFI22RPE at the three ENERGY STAR test temperatures (cooling capacity is 18,000 BTU/h for reference).

47°F
20,000 BTU/h
17°F
12,800 BTU/h
5°F
13,100 BTU/h

Retention at 17°F: 64% · at 5°F: 66%. Learn how to use these numbers in our cold-climate guide.

Estimated running cost in every state

Same unit, very different bills: from about $400 a year in Louisiana to $1,676 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¢$168$232$400
Florida14.99¢$126$324$450
Mississippi14.43¢$243$234$477
Nevada12.72¢$285$206$491
Arizona15.05¢$197$298$495
Tennessee13.42¢$351$157$508
Washington14.63¢$465$46$511
North Carolina14.95¢$363$175$538
Oregon15.92¢$476$64$541
Arkansas14.37¢$349$194$543
Kentucky13.80¢$413$137$549
South Carolina15.76¢$324$227$551
Texas15.91¢$268$286$554
Georgia15.90¢$327$229$556
Alabama16.33¢$336$235$571
Utah13.31¢$473$108$581
Oklahoma14.82¢$388$200$588
Idaho13.37¢$525$84$609
New Mexico16.51¢$463$149$611
Nebraska13.54¢$531$110$641
West Virginia16.31¢$549$117$666
Missouri16.02¢$509$159$668
Virginia17.64¢$495$175$669
Kansas15.47¢$520$153$674
Wyoming14.43¢$674$65$739
Colorado17.17¢$642$108$750
Delaware18.70¢$594$168$763
Indiana17.02¢$636$130$766
California29.75¢$500$268$768
North Dakota13.31¢$721$54$775
Montana15.57¢$728$63$791
South Dakota15.15¢$708$89$797
Iowa17.06¢$733$115$849
Ohio19.38¢$724$140$864
Maryland21.40¢$680$193$873
Illinois19.32¢$758$139$897
Minnesota17.20¢$868$85$953
Pennsylvania21.77¢$814$157$971
Wisconsin19.41¢$907$105$1,012
New Jersey24.61¢$828$199$1,027
District of Columbia25.98¢$777$257$1,034
Hawaii47.18¢$44$1,104$1,148
Connecticut24.51¢$1,008$143$1,151
Michigan22.99¢$1,031$124$1,155
Vermont23.84¢$1,159$97$1,255
Rhode Island28.18¢$1,159$152$1,311
New York28.65¢$1,178$168$1,346
New Hampshire27.64¢$1,292$124$1,416
Massachusetts30.48¢$1,310$165$1,475
Alaska29.41¢$1,649$26$1,676
Maine32.11¢$1,560$116$1,676
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Similar-size alternatives

Other mini-split / multi-split units within ±15% of this model's cooling capacity, sorted by efficiency. Cost difference is versus the Pioneer YN018GMFI22RPE at U.S.-average rates.

ModelCooling BTU/hSEER2HSPF25°F keptEst. yearly cost
Bryant 37MARAQ18AA318,00020–23.913.571%$610 (−$113)Compare
Bryant 37MAHAQ18AA318,00018–21.512.490%$668 (−$54)Compare
Senville SENA-18HF-OG18,00018–21.412.390%$672 (−$51)Compare
Fujitsu AOUH18KUAS118,00018.6–26.311.482%$744 (+$21)Compare
Fujitsu AOUH18LUAS118,00018.6–23.511.295%$660 (−$63)Compare
Senville SENA/18HF/OQ18,00018–21.511.395%$688 (−$35)Compare

Full specifications

BrandPioneer
Outdoor modelYN018GMFI22RPE
Certified byParker Davis HVAC International, Inc.
Product typeMini-split / multi-split
CompressorVariable-speed (inverter)
RefrigerantR-410A
Cooling capacity18,000 BTU/h
Nominal size1.5 tons
SEER2 (certified range)20 – 23
EER2 (best)12.5
HSPF2 (best)10.7
Heating capacity @ 47°F20,000 BTU/h
Heating capacity @ 17°F12,800 BTU/h
Heating capacity @ 5°F13,100 BTU/h
COP @ 5°F2.4
ENERGY STAR cold-climateNo
Certified indoor pairings5
Latest certification2026-05

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 Pioneer YN018GMFI22RPE 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 $723 per year ($543 heating, $180 cooling). It ranges from about $400 in Louisiana to $1,676 in Maine.

Does the Pioneer YN018GMFI22RPE work in cold weather?

It is not ENERGY STAR cold-climate certified. It delivers 13,100 BTU/h at 5°F (66% of its 47°F capacity), so in very cold climates expect more reliance on backup heat.

What size is the Pioneer YN018GMFI22RPE?

It is rated at 18,000 BTU/h of cooling, roughly 1.5 tons, and 20,000 BTU/h of heating at 47°F. Proper sizing should be confirmed with a Manual J load calculation.

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