Our take in 30 seconds
Best for: mixed climates with occasional hard freezesStrengths
- Heating efficiency (HSPF2 10) beats 77% of models
- Cooling efficiency up to SEER2 23, better than 87% of models
- Variable-speed compressor: quieter, steadier temperatures and better humidity control
- Uses newer, lower-impact R-454B refrigerant
Good to know
- No notable drawbacks in the certified data.
Running-cost calculator
Pre-filled with EIA prices · edit any fieldUses the base certified SEER2 (20.3) and HSPF2 (10). 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 YN018GLSI24RPG at the three ENERGY STAR test temperatures (cooling capacity is 18,000 BTU/h for reference).
Retention at 17°F: 79% · 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 $399 a year in Louisiana to $1,702 in Alaska, driven by local electricity prices and how much heating or cooling the climate needs. Click a column to sort.
| State | Price | Heating | Cooling | Total / yr |
|---|---|---|---|---|
| Louisiana | 12.87¢ | $171 | $228 | $399 |
| Florida | 14.99¢ | $128 | $319 | $447 |
| Mississippi | 14.43¢ | $247 | $230 | $477 |
| Nevada | 12.72¢ | $290 | $203 | $493 |
| Arizona | 15.05¢ | $200 | $294 | $494 |
| Tennessee | 13.42¢ | $357 | $155 | $512 |
| Washington | 14.63¢ | $473 | $45 | $518 |
| North Carolina | 14.95¢ | $369 | $172 | $542 |
| Arkansas | 14.37¢ | $355 | $191 | $546 |
| Oregon | 15.92¢ | $484 | $64 | $547 |
| South Carolina | 15.76¢ | $329 | $224 | $553 |
| Kentucky | 13.80¢ | $420 | $135 | $554 |
| Texas | 15.91¢ | $272 | $282 | $554 |
| Georgia | 15.90¢ | $332 | $226 | $558 |
| Alabama | 16.33¢ | $341 | $232 | $573 |
| Utah | 13.31¢ | $480 | $106 | $587 |
| Oklahoma | 14.82¢ | $394 | $197 | $591 |
| Idaho | 13.37¢ | $533 | $83 | $616 |
| New Mexico | 16.51¢ | $471 | $146 | $617 |
| Nebraska | 13.54¢ | $540 | $108 | $648 |
| West Virginia | 16.31¢ | $558 | $116 | $673 |
| Missouri | 16.02¢ | $517 | $156 | $674 |
| Virginia | 17.64¢ | $503 | $172 | $675 |
| Kansas | 15.47¢ | $529 | $151 | $680 |
| Wyoming | 14.43¢ | $685 | $64 | $749 |
| Colorado | 17.17¢ | $652 | $107 | $759 |
| Delaware | 18.70¢ | $604 | $166 | $770 |
| California | 29.75¢ | $509 | $264 | $773 |
| Indiana | 17.02¢ | $647 | $128 | $775 |
| North Dakota | 13.31¢ | $733 | $53 | $786 |
| Montana | 15.57¢ | $740 | $62 | $802 |
| South Dakota | 15.15¢ | $720 | $87 | $807 |
| Iowa | 17.06¢ | $746 | $113 | $859 |
| Ohio | 19.38¢ | $736 | $137 | $874 |
| Maryland | 21.40¢ | $691 | $190 | $881 |
| Illinois | 19.32¢ | $771 | $137 | $908 |
| Minnesota | 17.20¢ | $882 | $84 | $966 |
| Pennsylvania | 21.77¢ | $827 | $154 | $982 |
| Wisconsin | 19.41¢ | $922 | $103 | $1,025 |
| New Jersey | 24.61¢ | $842 | $196 | $1,038 |
| District of Columbia | 25.98¢ | $790 | $253 | $1,043 |
| Hawaii | 47.18¢ | $45 | $1,088 | $1,133 |
| Connecticut | 24.51¢ | $1,025 | $141 | $1,166 |
| Michigan | 22.99¢ | $1,048 | $122 | $1,171 |
| Vermont | 23.84¢ | $1,178 | $95 | $1,273 |
| Rhode Island | 28.18¢ | $1,178 | $150 | $1,328 |
| New York | 28.65¢ | $1,198 | $165 | $1,363 |
| New Hampshire | 27.64¢ | $1,313 | $123 | $1,435 |
| Massachusetts | 30.48¢ | $1,332 | $162 | $1,494 |
| Maine | 32.11¢ | $1,586 | $114 | $1,700 |
| Alaska | 29.41¢ | $1,676 | $26 | $1,702 |
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 YN018GLSI24RPG at U.S.-average rates.
| Model | Cooling BTU/h | SEER2 | HSPF2 | 5°F kept | Est. yearly cost | |
|---|---|---|---|---|---|---|
| Bryant 37MARAQ18AA3 | 18,000 | 20–23.9 | 13.5 | 71% | $610 (−$119) | Compare |
| Bryant 37MAHAQ18AA3 | 18,000 | 18–21.5 | 12.4 | 90% | $668 (−$61) | Compare |
| Senville SENA-18HF-OG | 18,000 | 18–21.4 | 12.3 | 90% | $672 (−$57) | Compare |
| Fujitsu AOUH18KUAS1 | 18,000 | 18.6–26.3 | 11.4 | 82% | $744 (+$15) | Compare |
| Fujitsu AOUH18LUAS1 | 18,000 | 18.6–23.5 | 11.2 | 95% | $660 (−$69) | Compare |
| Senville SENA/18HF/OQ | 18,000 | 18–21.5 | 11.3 | 95% | $688 (−$41) | Compare |
Full specifications
| Brand | Pioneer |
| Outdoor model | YN018GLSI24RPG |
| Certified by | Parker Davis HVAC International, Inc. |
| Product type | Mini-split / multi-split |
| Compressor | Variable-speed (inverter) |
| Refrigerant | R-454B |
| Cooling capacity | 18,000 BTU/h |
| Nominal size | 1.5 tons |
| SEER2 (certified range) | 20.3 – 23 |
| EER2 (best) | 12.5 |
| HSPF2 (best) | 10 |
| Heating capacity @ 47°F | 19,000 BTU/h |
| Heating capacity @ 17°F | 15,000 BTU/h |
| Heating capacity @ 5°F | 13,600 BTU/h |
| COP @ 5°F | 1.85 |
| ENERGY STAR cold-climate | Yes |
| Certified indoor pairings | 4 |
| Latest certification | 2025-09 |
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 Pioneer YN018GLSI24RPG 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 $729 per year ($552 heating, $177 cooling). It ranges from about $399 in Louisiana to $1,702 in Alaska.
Does the Pioneer YN018GLSI24RPG work in cold weather?
Yes. It is ENERGY STAR cold-climate certified and delivers 13,600 BTU/h at 5°F, 72% of its 47°F capacity, with a COP of 1.85 at 5°F.
What size is the Pioneer YN018GLSI24RPG?
It is rated at 18,000 BTU/h of cooling, roughly 1.5 tons, and 19,000 BTU/h of heating at 47°F. Proper sizing should be confirmed with a Manual J load calculation.