Our take in 30 seconds
Best for: hot and mild climatesStrengths
- Variable-speed compressor: quieter, steadier temperatures and better humidity control
- Uses newer, lower-impact R-454B refrigerant
Good to know
- Only 49% of its heat output remains at 5°F; plan on backup heat in hard freezes
- Efficiency depends on the indoor unit: SEER2 ranges 15.2–19, so ask which pairing you're quoted
Running-cost calculator
Pre-filled with EIA prices · edit any fieldUses the base certified SEER2 (15.2) and HSPF2 (8.5). 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 Lennox EL19KPV-036-230A** at the three ENERGY STAR test temperatures (cooling capacity is 36,000 BTU/h for reference).
Retention at 17°F: 64% · at 5°F: 49%. Learn how to use these numbers in our cold-climate guide.
Estimated running cost in every state
Same unit, very different bills: from about $991 a year in Louisiana to $3,840 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¢ | $382 | $610 | $991 |
| Florida | 14.99¢ | $286 | $852 | $1,138 |
| Mississippi | 14.43¢ | $550 | $615 | $1,165 |
| Washington | 14.63¢ | $1,053 | $121 | $1,175 |
| Nevada | 12.72¢ | $646 | $542 | $1,189 |
| Tennessee | 13.42¢ | $796 | $413 | $1,209 |
| Arizona | 15.05¢ | $446 | $784 | $1,230 |
| Oregon | 15.92¢ | $1,079 | $170 | $1,248 |
| North Carolina | 14.95¢ | $823 | $460 | $1,283 |
| Kentucky | 13.80¢ | $935 | $360 | $1,295 |
| Arkansas | 14.37¢ | $791 | $511 | $1,302 |
| South Carolina | 15.76¢ | $734 | $597 | $1,331 |
| Georgia | 15.90¢ | $741 | $603 | $1,343 |
| Utah | 13.31¢ | $1,071 | $284 | $1,355 |
| Texas | 15.91¢ | $606 | $754 | $1,360 |
| Alabama | 16.33¢ | $761 | $619 | $1,380 |
| Oklahoma | 14.82¢ | $879 | $526 | $1,405 |
| Idaho | 13.37¢ | $1,189 | $222 | $1,411 |
| New Mexico | 16.51¢ | $1,049 | $391 | $1,440 |
| Nebraska | 13.54¢ | $1,204 | $289 | $1,493 |
| West Virginia | 16.31¢ | $1,243 | $309 | $1,552 |
| Missouri | 16.02¢ | $1,153 | $417 | $1,571 |
| Virginia | 17.64¢ | $1,121 | $460 | $1,580 |
| Kansas | 15.47¢ | $1,179 | $403 | $1,582 |
| Wyoming | 14.43¢ | $1,528 | $171 | $1,699 |
| Colorado | 17.17¢ | $1,454 | $285 | $1,739 |
| North Dakota | 13.31¢ | $1,635 | $142 | $1,777 |
| Indiana | 17.02¢ | $1,442 | $343 | $1,784 |
| Delaware | 18.70¢ | $1,346 | $443 | $1,789 |
| Montana | 15.57¢ | $1,649 | $166 | $1,815 |
| South Dakota | 15.15¢ | $1,604 | $233 | $1,837 |
| California | 29.75¢ | $1,134 | $705 | $1,839 |
| Iowa | 17.06¢ | $1,662 | $303 | $1,965 |
| Ohio | 19.38¢ | $1,642 | $367 | $2,009 |
| Maryland | 21.40¢ | $1,541 | $507 | $2,048 |
| Illinois | 19.32¢ | $1,718 | $366 | $2,084 |
| Minnesota | 17.20¢ | $1,967 | $224 | $2,191 |
| Pennsylvania | 21.77¢ | $1,844 | $412 | $2,257 |
| Wisconsin | 19.41¢ | $2,055 | $276 | $2,331 |
| New Jersey | 24.61¢ | $1,876 | $525 | $2,401 |
| District of Columbia | 25.98¢ | $1,761 | $677 | $2,437 |
| Connecticut | 24.51¢ | $2,284 | $377 | $2,661 |
| Michigan | 22.99¢ | $2,337 | $327 | $2,664 |
| Vermont | 23.84¢ | $2,625 | $254 | $2,879 |
| Hawaii | 47.18¢ | $100 | $2,905 | $3,005 |
| Rhode Island | 28.18¢ | $2,626 | $400 | $3,026 |
| New York | 28.65¢ | $2,670 | $441 | $3,111 |
| New Hampshire | 27.64¢ | $2,927 | $327 | $3,254 |
| Massachusetts | 30.48¢ | $2,969 | $433 | $3,402 |
| Alaska | 29.41¢ | $3,737 | $70 | $3,806 |
| Maine | 32.11¢ | $3,536 | $304 | $3,840 |
Similar-size alternatives
Other ducted split system units within ±15% of this model's cooling capacity, sorted by efficiency. Cost difference is versus the Lennox EL19KPV-036-230A** 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 (−$350) | Compare |
| Bryant 37MUHAQ36AA3 | 36,000 | 15.8–18 | 10.3 | 103% | $1,527 (−$177) | Compare |
| Daikin DH9VSA361CA* | 34,200 | 16.9–21 | 10 | 100% | $1,398 (−$306) | Compare |
| Panasonic CU-HM36BAHU | 36,000 | 15.6–17.4 | 10.3 | 103% | $1,533 (−$171) | Compare |
| MrCool CENTRAL-36-HP-C-230B00-O | 36,000 | 15.2–17.4 | 10.3 | 103% | $1,545 (−$159) | Compare |
| Midea MO1SE-H36B-2A | 36,000 | 15.2–18 | 10.3 | 103% | $1,545 (−$159) | Compare |
Full specifications
| Brand | Lennox |
| Outdoor model | EL19KPV-036-230A** |
| Certified by | Lennox Industries |
| Product type | Ducted split system |
| Compressor | Variable-speed (inverter) |
| Refrigerant | R-454B |
| Cooling capacity | 36,000 BTU/h |
| Nominal size | 3 tons |
| SEER2 (certified range) | 15.2 – 19 |
| EER2 (best) | 12.5 |
| HSPF2 (best) | 8.5 |
| Heating capacity @ 47°F | 36,000 BTU/h |
| Heating capacity @ 17°F | 23,000 BTU/h |
| Heating capacity @ 5°F | 17,700 BTU/h |
| COP @ 5°F | 2.3 |
| ENERGY STAR cold-climate | No |
| Certified indoor pairings | 154 |
| Latest certification | 2026-10 |
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 Lennox EL19KPV-036-230A** 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 $1,704 per year ($1,231 heating, $473 cooling). It ranges from about $991 in Louisiana to $3,840 in Maine.
Does the Lennox EL19KPV-036-230A** work in cold weather?
It is not ENERGY STAR cold-climate certified. It delivers 17,700 BTU/h at 5°F (49% of its 47°F capacity), so in very cold climates expect more reliance on backup heat.
What size is the Lennox EL19KPV-036-230A**?
It is rated at 36,000 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.