Our take in 30 seconds
Best for: hot and mild climatesStrengths
- Cooling efficiency up to SEER2 20.5, better than 73% of models
- Variable-speed compressor: quieter, steadier temperatures and better humidity control
- Also sold under 1 other badge, so you can compare more quotes for the same unit
Good to know
- Uses R-410A, a refrigerant being phased down; future service may cost more
- Efficiency depends on the indoor unit: SEER2 ranges 17.5–20.5, so ask which pairing you're quoted
Running-cost calculator
Pre-filled with EIA prices · edit any fieldUses the base certified SEER2 (17.5) and HSPF2 (8.7). 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 Trane 4TWV0X36A1 at the three ENERGY STAR test temperatures (cooling capacity is 36,000 BTU/h for reference).
Retention at 17°F: 82% · at 5°F: 63%. Learn how to use these numbers in our cold-climate guide.
Estimated running cost in every state
Same unit, very different bills: from about $896 a year in Louisiana to $3,661 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¢ | $367 | $530 | $896 |
| Florida | 14.99¢ | $274 | $740 | $1,015 |
| Mississippi | 14.43¢ | $528 | $534 | $1,063 |
| Nevada | 12.72¢ | $621 | $471 | $1,092 |
| Arizona | 15.05¢ | $429 | $681 | $1,110 |
| Washington | 14.63¢ | $1,012 | $105 | $1,117 |
| Tennessee | 13.42¢ | $764 | $359 | $1,123 |
| Oregon | 15.92¢ | $1,036 | $147 | $1,184 |
| North Carolina | 14.95¢ | $791 | $400 | $1,191 |
| Arkansas | 14.37¢ | $760 | $443 | $1,204 |
| Kentucky | 13.80¢ | $898 | $312 | $1,211 |
| South Carolina | 15.76¢ | $705 | $519 | $1,224 |
| Georgia | 15.90¢ | $712 | $523 | $1,235 |
| Texas | 15.91¢ | $583 | $655 | $1,237 |
| Alabama | 16.33¢ | $731 | $537 | $1,268 |
| Utah | 13.31¢ | $1,029 | $246 | $1,275 |
| Oklahoma | 14.82¢ | $844 | $457 | $1,302 |
| Idaho | 13.37¢ | $1,142 | $193 | $1,335 |
| New Mexico | 16.51¢ | $1,008 | $340 | $1,347 |
| Nebraska | 13.54¢ | $1,157 | $251 | $1,408 |
| West Virginia | 16.31¢ | $1,195 | $268 | $1,463 |
| Missouri | 16.02¢ | $1,108 | $363 | $1,471 |
| Virginia | 17.64¢ | $1,077 | $399 | $1,476 |
| Kansas | 15.47¢ | $1,133 | $350 | $1,483 |
| Wyoming | 14.43¢ | $1,468 | $148 | $1,616 |
| Colorado | 17.17¢ | $1,397 | $247 | $1,645 |
| Delaware | 18.70¢ | $1,294 | $385 | $1,678 |
| Indiana | 17.02¢ | $1,385 | $298 | $1,683 |
| North Dakota | 13.31¢ | $1,571 | $123 | $1,694 |
| California | 29.75¢ | $1,089 | $612 | $1,701 |
| Montana | 15.57¢ | $1,584 | $144 | $1,728 |
| South Dakota | 15.15¢ | $1,541 | $203 | $1,744 |
| Iowa | 17.06¢ | $1,597 | $263 | $1,860 |
| Ohio | 19.38¢ | $1,577 | $319 | $1,896 |
| Maryland | 21.40¢ | $1,480 | $440 | $1,921 |
| Illinois | 19.32¢ | $1,651 | $318 | $1,969 |
| Minnesota | 17.20¢ | $1,890 | $195 | $2,084 |
| Pennsylvania | 21.77¢ | $1,772 | $358 | $2,130 |
| Wisconsin | 19.41¢ | $1,974 | $240 | $2,214 |
| New Jersey | 24.61¢ | $1,802 | $456 | $2,258 |
| District of Columbia | 25.98¢ | $1,691 | $588 | $2,279 |
| Connecticut | 24.51¢ | $2,194 | $328 | $2,522 |
| Michigan | 22.99¢ | $2,245 | $284 | $2,529 |
| Hawaii | 47.18¢ | $96 | $2,523 | $2,619 |
| Vermont | 23.84¢ | $2,522 | $221 | $2,743 |
| Rhode Island | 28.18¢ | $2,523 | $348 | $2,870 |
| New York | 28.65¢ | $2,565 | $383 | $2,948 |
| New Hampshire | 27.64¢ | $2,812 | $284 | $3,096 |
| Massachusetts | 30.48¢ | $2,853 | $376 | $3,229 |
| Alaska | 29.41¢ | $3,590 | $61 | $3,651 |
| Maine | 32.11¢ | $3,397 | $264 | $3,661 |
Same equipment sold under other brands
These listings share the same certifying manufacturer (Trane and American Standard Heating and Air Conditioning) 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.
- American Standard 4A6V0X36A1
Similar-size alternatives
Other ducted split system units within ±15% of this model's cooling capacity, sorted by efficiency. Cost difference is versus the Trane 4TWV0X36A1 at U.S.-average rates.
| Model | Cooling BTU/h | SEER2 | HSPF2 | 5°F kept | Est. yearly cost | |
|---|---|---|---|---|---|---|
| Ruud UP19AY36AJVC | 34,200 | 19–21 | 10 | 87% | $1,353 (−$240) | Compare |
| Bryant 37MUHAQ36AA3 | 36,000 | 15.8–18 | 10.3 | 103% | $1,527 (−$66) | Compare |
| Daikin DH9VSA361CA* | 34,200 | 16.9–21 | 10 | 100% | $1,398 (−$195) | Compare |
| Panasonic CU-HM36BAHU | 36,000 | 15.6–17.4 | 10.3 | 103% | $1,533 (−$60) | Compare |
| MrCool CENTRAL-36-HP-C-230B00-O | 36,000 | 15.2–17.4 | 10.3 | 103% | $1,545 (−$48) | Compare |
| Midea MO1SE-H36B-2A | 36,000 | 15.2–18 | 10.3 | 103% | $1,545 (−$48) | Compare |
Full specifications
| Brand | Trane |
| Outdoor model | 4TWV0X36A1 |
| Certified by | Trane and American Standard Heating and Air Conditioning |
| Product type | Ducted split system |
| Compressor | Variable-speed (inverter) |
| Refrigerant | R-410A |
| Cooling capacity | 36,000 BTU/h |
| Nominal size | 3 tons |
| SEER2 (certified range) | 17.5 – 20.5 |
| EER2 (best) | 12.7 |
| HSPF2 (best) | 8.7 |
| Heating capacity @ 47°F | 35,400 BTU/h |
| Heating capacity @ 17°F | 29,000 BTU/h |
| Heating capacity @ 5°F | 22,400 BTU/h |
| COP @ 5°F | 1.92 |
| ENERGY STAR cold-climate | No |
| Certified indoor pairings | 208 |
| 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 Trane 4TWV0X36A1 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 $1,593 per year ($1,182 heating, $411 cooling). It ranges from about $896 in Louisiana to $3,661 in Maine.
Does the Trane 4TWV0X36A1 work in cold weather?
It is not ENERGY STAR cold-climate certified. It delivers 22,400 BTU/h at 5°F (63% of its 47°F capacity), so in very cold climates expect more reliance on backup heat.
What size is the Trane 4TWV0X36A1?
It is rated at 36,000 BTU/h of cooling, roughly 3 tons, and 35,400 BTU/h of heating at 47°F. Proper sizing should be confirmed with a Manual J load calculation.
Is the Trane 4TWV0X36A1 the same as the American Standard 4A6V0X36A1?
Very likely. Both are certified by Trane and American Standard Heating and Air Conditioning with identical capacities and efficiency ratings in the ENERGY STAR database, which indicates the same equipment sold under different brands.