Our take in 30 seconds
Best for: cold and very cold climatesStrengths
- Keeps 88% of its heat at 5°F, so backup heat rarely runs
- Heating efficiency (HSPF2 10) beats 77% of models
- Variable-speed compressor: quieter, steadier temperatures and better humidity control
- Uses newer, lower-impact R-454B refrigerant
Good to know
- Efficiency depends on the indoor unit: SEER2 ranges 16–19, so ask which pairing you're quoted
Running-cost calculator
Pre-filled with EIA prices · edit any fieldUses the base certified SEER2 (16) 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 Rheem RD18AY48AJVC at the three ENERGY STAR test temperatures (cooling capacity is 43,500 BTU/h for reference).
Retention at 17°F: 94% · at 5°F: 88%. Learn how to use these numbers in our cold-climate guide.
Estimated running cost in every state
Same unit, very different bills: from about $1,087 a year in Louisiana to $3,939 in Maine, 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¢ | $387 | $700 | $1,087 |
| Washington | 14.63¢ | $1,069 | $139 | $1,209 |
| Mississippi | 14.43¢ | $558 | $706 | $1,265 |
| Florida | 14.99¢ | $290 | $978 | $1,268 |
| Nevada | 12.72¢ | $656 | $622 | $1,279 |
| Tennessee | 13.42¢ | $808 | $474 | $1,282 |
| Oregon | 15.92¢ | $1,095 | $195 | $1,290 |
| Arizona | 15.05¢ | $453 | $900 | $1,353 |
| Kentucky | 13.80¢ | $949 | $413 | $1,362 |
| North Carolina | 14.95¢ | $836 | $528 | $1,364 |
| Arkansas | 14.37¢ | $803 | $586 | $1,389 |
| Utah | 13.31¢ | $1,087 | $326 | $1,413 |
| South Carolina | 15.76¢ | $745 | $686 | $1,431 |
| Georgia | 15.90¢ | $752 | $692 | $1,444 |
| Idaho | 13.37¢ | $1,207 | $254 | $1,462 |
| Texas | 15.91¢ | $616 | $865 | $1,481 |
| Alabama | 16.33¢ | $772 | $710 | $1,483 |
| Oklahoma | 14.82¢ | $892 | $604 | $1,497 |
| New Mexico | 16.51¢ | $1,065 | $449 | $1,514 |
| Nebraska | 13.54¢ | $1,223 | $331 | $1,554 |
| West Virginia | 16.31¢ | $1,262 | $355 | $1,617 |
| Missouri | 16.02¢ | $1,171 | $479 | $1,650 |
| Kansas | 15.47¢ | $1,197 | $463 | $1,660 |
| Virginia | 17.64¢ | $1,138 | $528 | $1,665 |
| Wyoming | 14.43¢ | $1,551 | $196 | $1,747 |
| Colorado | 17.17¢ | $1,477 | $327 | $1,803 |
| North Dakota | 13.31¢ | $1,660 | $163 | $1,823 |
| Indiana | 17.02¢ | $1,464 | $393 | $1,857 |
| Montana | 15.57¢ | $1,674 | $190 | $1,864 |
| Delaware | 18.70¢ | $1,367 | $508 | $1,875 |
| South Dakota | 15.15¢ | $1,629 | $268 | $1,896 |
| California | 29.75¢ | $1,151 | $809 | $1,960 |
| Iowa | 17.06¢ | $1,687 | $348 | $2,035 |
| Ohio | 19.38¢ | $1,667 | $422 | $2,088 |
| Maryland | 21.40¢ | $1,564 | $582 | $2,146 |
| Illinois | 19.32¢ | $1,745 | $420 | $2,165 |
| Minnesota | 17.20¢ | $1,997 | $257 | $2,254 |
| Pennsylvania | 21.77¢ | $1,872 | $473 | $2,346 |
| Wisconsin | 19.41¢ | $2,087 | $317 | $2,403 |
| New Jersey | 24.61¢ | $1,905 | $602 | $2,507 |
| District of Columbia | 25.98¢ | $1,787 | $777 | $2,564 |
| Michigan | 22.99¢ | $2,373 | $375 | $2,748 |
| Connecticut | 24.51¢ | $2,319 | $433 | $2,752 |
| Vermont | 23.84¢ | $2,665 | $292 | $2,957 |
| Rhode Island | 28.18¢ | $2,666 | $460 | $3,126 |
| New York | 28.65¢ | $2,710 | $506 | $3,217 |
| New Hampshire | 27.64¢ | $2,971 | $376 | $3,347 |
| Hawaii | 47.18¢ | $101 | $3,335 | $3,436 |
| Massachusetts | 30.48¢ | $3,014 | $497 | $3,512 |
| Alaska | 29.41¢ | $3,794 | $80 | $3,874 |
| Maine | 32.11¢ | $3,590 | $349 | $3,939 |
Same equipment sold under other brands
These listings share the same certifying manufacturer (Rheem Sales Company, 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.
- Ruud RD18AY48AJVC
Similar-size alternatives
Other ducted split system units within ±15% of this model's cooling capacity, sorted by efficiency. Cost difference is versus the Rheem RD18AY48AJVC at U.S.-average rates.
| Model | Cooling BTU/h | SEER2 | HSPF2 | 5°F kept | Est. yearly cost | |
|---|---|---|---|---|---|---|
| Ruud UP19AY48AJVC | 45,500 | 18–19 | 10 | 92% | $1,827 (+$34) | Compare |
| Heil B5H3V48*K*AAA* | 46,500 | 20–23 | 9.5 | 76% | $1,963 (+$171) | Compare |
| Tempstar T5H3V48*K*AAA* | 46,500 | 19.5–23 | 9.5 | 72% | $2,113 (+$320) | Compare |
| Friedrich RD18AY48AJVC | 43,500 | 16–19 | 10 | 79% | $1,938 (+$145) | Compare |
| Carrier 27VPA948A*030* | 49,500 | 15.2–19 | 10 | 75% | $2,249 (+$456) | Compare |
| LG KUSXA482A | 48,000 | 15.9–19 | 9.6 | 92% | $2,116 (+$324) | Compare |
Full specifications
| Brand | Rheem |
| Outdoor model | RD18AY48AJVC |
| Certified by | Rheem Sales Company, Inc. |
| Product type | Ducted split system |
| Compressor | Variable-speed (inverter) |
| Refrigerant | R-454B |
| Cooling capacity | 43,500 BTU/h |
| Nominal size | 3.5 tons |
| SEER2 (certified range) | 16 – 19 |
| EER2 (best) | 12 |
| HSPF2 (best) | 10 |
| Heating capacity @ 47°F | 43,000 BTU/h |
| Heating capacity @ 17°F | 40,500 BTU/h |
| Heating capacity @ 5°F | 38,000 BTU/h |
| COP @ 5°F | 2.1 |
| ENERGY STAR cold-climate | Yes |
| Certified indoor pairings | 111 |
| Latest certification | 2026-09 |
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 Rheem RD18AY48AJVC 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 $1,793 per year ($1,249 heating, $543 cooling). It ranges from about $1,087 in Louisiana to $3,939 in Maine.
Does the Rheem RD18AY48AJVC work in cold weather?
Yes. It is ENERGY STAR cold-climate certified and delivers 38,000 BTU/h at 5°F, 88% of its 47°F capacity, with a COP of 2.1 at 5°F.
What size is the Rheem RD18AY48AJVC?
It is rated at 43,500 BTU/h of cooling, roughly 3.5 tons, and 43,000 BTU/h of heating at 47°F. Proper sizing should be confirmed with a Manual J load calculation.
Is the Rheem RD18AY48AJVC the same as the Ruud RD18AY48AJVC?
Very likely. Both are certified by Rheem Sales Company, Inc. with identical capacities and efficiency ratings in the ENERGY STAR database, which indicates the same equipment sold under different brands.