Our take in 30 seconds
Best for: mixed climates with occasional hard freezesStrengths
- 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 (16) and HSPF2 (9.4). 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 Bosch BOHA-60MTB-M18S at the three ENERGY STAR test temperatures (cooling capacity is 60,000 BTU/h for reference).
Retention at 17°F: 87% · at 5°F: 75%. Learn how to use these numbers in our cold-climate guide.
Estimated running cost in every state
Same unit, very different bills: from about $1,540 a year in Louisiana to $5,811 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¢ | $575 | $965 | $1,540 |
| Washington | 14.63¢ | $1,588 | $192 | $1,780 |
| Florida | 14.99¢ | $431 | $1,349 | $1,780 |
| Mississippi | 14.43¢ | $829 | $974 | $1,803 |
| Nevada | 12.72¢ | $974 | $859 | $1,833 |
| Tennessee | 13.42¢ | $1,199 | $654 | $1,853 |
| Oregon | 15.92¢ | $1,626 | $269 | $1,895 |
| Arizona | 15.05¢ | $672 | $1,242 | $1,914 |
| North Carolina | 14.95¢ | $1,241 | $729 | $1,969 |
| Kentucky | 13.80¢ | $1,409 | $569 | $1,979 |
| Arkansas | 14.37¢ | $1,192 | $808 | $2,001 |
| South Carolina | 15.76¢ | $1,107 | $946 | $2,052 |
| Utah | 13.31¢ | $1,614 | $449 | $2,063 |
| Georgia | 15.90¢ | $1,116 | $954 | $2,070 |
| Texas | 15.91¢ | $914 | $1,193 | $2,107 |
| Alabama | 16.33¢ | $1,147 | $980 | $2,126 |
| Idaho | 13.37¢ | $1,792 | $351 | $2,143 |
| Oklahoma | 14.82¢ | $1,324 | $834 | $2,158 |
| New Mexico | 16.51¢ | $1,581 | $619 | $2,200 |
| Nebraska | 13.54¢ | $1,815 | $457 | $2,272 |
| West Virginia | 16.31¢ | $1,874 | $489 | $2,363 |
| Missouri | 16.02¢ | $1,738 | $661 | $2,399 |
| Kansas | 15.47¢ | $1,777 | $638 | $2,416 |
| Virginia | 17.64¢ | $1,689 | $728 | $2,417 |
| Wyoming | 14.43¢ | $2,303 | $271 | $2,573 |
| Colorado | 17.17¢ | $2,192 | $451 | $2,643 |
| North Dakota | 13.31¢ | $2,464 | $225 | $2,688 |
| Indiana | 17.02¢ | $2,173 | $543 | $2,715 |
| Delaware | 18.70¢ | $2,029 | $701 | $2,730 |
| Montana | 15.57¢ | $2,485 | $263 | $2,747 |
| South Dakota | 15.15¢ | $2,418 | $369 | $2,787 |
| California | 29.75¢ | $1,709 | $1,116 | $2,825 |
| Iowa | 17.06¢ | $2,505 | $480 | $2,984 |
| Ohio | 19.38¢ | $2,474 | $581 | $3,055 |
| Maryland | 21.40¢ | $2,322 | $802 | $3,125 |
| Illinois | 19.32¢ | $2,590 | $580 | $3,169 |
| Minnesota | 17.20¢ | $2,964 | $355 | $3,319 |
| Pennsylvania | 21.77¢ | $2,779 | $653 | $3,432 |
| Wisconsin | 19.41¢ | $3,097 | $437 | $3,534 |
| New Jersey | 24.61¢ | $2,828 | $831 | $3,658 |
| District of Columbia | 25.98¢ | $2,653 | $1,072 | $3,725 |
| Michigan | 22.99¢ | $3,522 | $517 | $4,039 |
| Connecticut | 24.51¢ | $3,442 | $597 | $4,039 |
| Vermont | 23.84¢ | $3,956 | $402 | $4,359 |
| Rhode Island | 28.18¢ | $3,957 | $634 | $4,591 |
| New York | 28.65¢ | $4,023 | $698 | $4,722 |
| Hawaii | 47.18¢ | $151 | $4,600 | $4,751 |
| New Hampshire | 27.64¢ | $4,411 | $518 | $4,929 |
| Massachusetts | 30.48¢ | $4,475 | $686 | $5,161 |
| Alaska | 29.41¢ | $5,632 | $110 | $5,742 |
| Maine | 32.11¢ | $5,329 | $482 | $5,811 |
Similar-size alternatives
Other ducted split system units within ±15% of this model's cooling capacity, sorted by efficiency. Cost difference is versus the Bosch BOHA-60MTB-M18S at U.S.-average rates.
| Model | Cooling BTU/h | SEER2 | HSPF2 | 5°F kept | Est. yearly cost | |
|---|---|---|---|---|---|---|
| Gree GUD60W2/NHE-D(U) | 53,000 | 16–19 | 10.5 | 100% | $2,156 (−$448) | Compare |
| Rheem RD18AY60AJVC | 52,000 | 16–18 | 10 | 66% | $2,393 (−$211) | Compare |
| Bosch BOVA-60MTB-M19E | 53,500 | 15.2–19 | 10 | 100% | $2,301 (−$303) | Compare |
| Rheem RP17AY60AJVC | 57,000 | 16–17 | 9.5 | 80% | $2,455 (−$149) | Compare |
| Bosch BOVA-60RTB-M20S | 52,000 | 16–18.5 | 9.5 | 70% | $2,331 (−$272) | Compare |
| Lennox EL18KSLV-060-230A** | 55,500 | 15.2–18.3 | 9.6 | 80% | $2,439 (−$164) | Compare |
Full specifications
| Brand | Bosch |
| Outdoor model | BOHA-60MTB-M18S |
| Certified by | Bosch Thermotechnology Corporation |
| Product type | Ducted split system |
| Compressor | Variable-speed (inverter) |
| Refrigerant | R-454B |
| Cooling capacity | 60,000 BTU/h |
| Nominal size | 5 tons |
| SEER2 (certified range) | 16 – 18 |
| EER2 (best) | 10.8 |
| HSPF2 (best) | 9.4 |
| Heating capacity @ 47°F | 60,000 BTU/h |
| Heating capacity @ 17°F | 52,000 BTU/h |
| Heating capacity @ 5°F | 45,000 BTU/h |
| COP @ 5°F | 1.95 |
| ENERGY STAR cold-climate | Yes |
| Certified indoor pairings | 21 |
| Latest certification | 2026-06 |
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 Bosch BOHA-60MTB-M18S 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 $2,604 per year ($1,855 heating, $749 cooling). It ranges from about $1,540 in Louisiana to $5,811 in Maine.
Does the Bosch BOHA-60MTB-M18S work in cold weather?
Yes. It is ENERGY STAR cold-climate certified and delivers 45,000 BTU/h at 5°F, 75% of its 47°F capacity, with a COP of 1.95 at 5°F.
What size is the Bosch BOHA-60MTB-M18S?
It is rated at 60,000 BTU/h of cooling, roughly 5 tons, and 60,000 BTU/h of heating at 47°F. Proper sizing should be confirmed with a Manual J load calculation.