O-ES-09-HP-C-230C-O1
MRCOOL · mini-split heat pump
O-ES-09-HP-C-230C-O1 is in the certified data as of Sep 19, 2026. O-ES-09-HP-C-230C-O1 changed its certified heat output at 17°F on AHRI certificate 217447801 from 9,800 Btu/h to 12,000 Btu/h in the certified data between August 2025 and September 2026.
- 9,000 Btu
- Mini-split
- Variable speed
- US and Canada
Certified heating and cooling
Heating at 47°F
10,0002.93NR
No 47°F rating for this pairing.
9,6002.81NR at 17°F
11,2003.28NR at 5°F
Btu/hkW, certified
1.89NR COP at 5°F
Heating and cooling by outdoor temperature
This pairing delivers 10,000 Btu/h2.93 kW of heat at 47°F, 9,600 Btu/h2.81 kW at 17°F, and 11,200 Btu/h3.28 kW at 5°F, 112% of its 47°F rating. It delivers 9,000 Btu/h2.64 kW of cooling at 95°F. At 5°F that is 3,700 Btu/h1.08 kW above the example heating load of 7,500 Btu/h2.20 kW; at 95°F it is 5,500 Btu/h1.61 kW above the example cooling load of 3,500 Btu/h1.03 kW.
Each bar is a separate certified test, drawn at its outdoor temperature, starting at zero. The 47°F figure is at normal speed; the 17 and 5°F figures are at full speed. The short dark line on each bar is the median of 9,000 Btu mini-split models, one value per model. The shaded 17 to 45°F band is the frosting range: the outdoor coil can frost, and the unit pauses to defrost.
The dashed lines are example loads for a typical area of about 300 sq ft where winters reach 5°F: heating runs from 7,500 Btu/h2.20 kW at 5°F to 0 at 65°F, and cooling runs from 0 at 65°F to 3,500 Btu/h1.03 kW at 95°F, at 1,000 sq ft per ton. A house in a hot climate or with large west-facing windows can need twice as much cooling. They are examples, not your building.
AHRI certificate 217447803 · listed by MRCOOL · certified May 23, 2025 · 1 pairing carries these values
Certified output and power use
| Outdoor temperature | Certified outputBtu/h | One scale | vs class median | COPat 5°F |
|---|---|---|---|---|
| 5°Ffull speed | 11,2003.28 kW | +45% | 1.89 | |
| 17°Ffull speed | 9,6002.81 kW | +20% | NR | |
| 47°Fnormal speed | 10,0002.93 kW | 0% | NR | |
| 95°Fcooling, full load | 9,0002.64 kW | — | NR |
EER2 13.4 in that test. SEER2 21.4 over the modeled cooling season.
Power use at each temperature
- Electrical input in the 5°F full-speed test
- 1.74kW
- Electrical input in the 95°F cooling test
- 0.67kW
- Seasonal average heating COP
- 3.66
These exclude backup resistance heat.
How it compares with other 9,000 Btu heat pumps
9,000 Btu mini-split models
- This pairing at 5°F
- 11,200 Btu/h3.28 kWNR
- This unit at 5°F median across its pairings
- 11,200 Btu/h3.28 kW
- Median of 9,000 Btu mini-split models at 5°F
- 7,700 Btu/h2.26 kW
- Models in this group
- 894
This unit is above 87% of them, at number 113 of 894 by heat at 5°F. The middle half of the group runs 7,000 to 9,500 Btu/h.
Closest models by heat at 5°F
- ML09HP230NEXH-OMainline · 11,200 Btu/h
- MO1HS-H09B-2AMidea · 11,200 Btu/h
- MSH-09HD-BMulti MFG · 11,200 Btu/h
- 3KARDA09SZOKarda and PerfectAire · 11,000 Btu/h
- MSH093G22MCAAGoodman · 11,000 Btu/h
- SENA-09HF-OGSenville · 11,000 Btu/h
Every 9,000 Btu unit, ranked by cooling efficiency, then heating efficiency
Certified values for O-ES-09-HP-C-230C-O1
3 pairings · 3 AHRI certificates
This pairing is the one shown above. Under all pairings, a single figure means every pairing agrees and a range means the pairing decides.
| This pairing | All pairings | |
|---|---|---|
| Heating | ||
| Heat output at 47°F normal speed | 10,000 Btu/h2.93 kWNR | 10,000–12,000 Btu/h2.93–3.52 kW |
| Heat output at 17°F full speed | 9,600 Btu/h2.81 kWNR | 9,600–12,000 Btu/h2.81–3.52 kW |
| Heat output at 5°F full speed | 11,200 Btu/h3.28 kWNR | 11,000–11,500 Btu/h3.22–3.37 kW |
| Heat output below 5°F | NR | NR |
| Cold output 5°F output as a % of the 47°F rating | 112%NR | |
| COP at 5°F full speed | 1.89NR | 1.80–1.89 |
| HSPF2 Region IV | 12.5NR | 12.1–12.5 |
| Cooling | ||
| Cooling capacity at 95°F full-load test | 9,000 Btu/h2.64 kWNR | 9,000 Btu/h2.64 kW |
| EER2 at 95°F | 13.4NR | 13.4–15.4 |
| SEER2 cooling season | 21.4NR | 21.4–27.4 |
| Cooling at other temperatures | NR | NR |
| Equipment and listing | ||
| Refrigerant | R-454B | |
| Compressor | Variable speed | |
| Indoor unit | DUCT-09HP-230B-O | 3 indoor units |
| Furnace | No furnace | None |
| Cold-climate designation EPA's designation, as published | Yes | On every pairing |
| ENERGY STAR Most Efficient EPA's designation, as published | Yes | On every pairing |
| Where it is sold | US and Canada | US and Canada |
| Model string as certified | O-ES-09-HP-C-230C-O1 | |
Pairings, by indoor-unit class
3 indoor units · 3 certified pairings
One row per indoor unit certified with this outdoor unit.
Ductless indoor · 3 indoor units
-
CASSETTE09HP-230C-O (the pairing on screen) MRCOOL 11,000 Btu/h3.22 kWat 5°F, full speed
-
DUCT-09HP-230B-O (the pairing on screen) MRCOOL 11,200 Btu/h3.28 kWat 5°F, full speed
-
O-09-HP-WMAH-230C-O (the pairing on screen) MRCOOL 11,500 Btu/h3.37 kWat 5°F, full speed
| Indoor unit | Brand | At 5°FBtu/hkW · full speed | At 47°FBtu/hkW · normal speed | At 95°FBtu/hkW · cooling | Cold output% of 47°F rating | COP 5°Ffull speed | Cold climate | Pairings |
|---|---|---|---|---|---|---|---|---|
| CASSETTE09HP-230C-O (the pairing on screen) | MRCOOL | 11,0003.22 | 10,0002.93 | 9,0002.64 | 110% | 1.84 | Yes | 1 |
| DUCT-09HP-230B-O (the pairing on screen) | MRCOOL | 11,2003.28 | 10,0002.93 | 9,0002.64 | 112% | 1.89 | Yes | 1 |
| O-09-HP-WMAH-230C-O (the pairing on screen) | MRCOOL | 11,5003.37 | 12,0003.52 | 9,0002.64 | 96% | 1.80 | Yes | 1 |
Sold as, and units with identical certified values
Brands listing this model number
Model number as listed
- O-ES-09-HP-C-230C-O1 3 pairings
Variants of the same model number
2 units in this group. Basis: identical certified values in the certified data. This grouping is our inference, not a field in the certified data.
1 of 2 shown.
Other model numbers with identical certified values
2 units share this record. Basis: identical certified values in the certified data. This grouping is our inference, not a field in the certified data.
1 of 2 shown.
What affects the price
We don't have prices. These things drive the cost.
- The size of the unit, and the indoor equipment on the same certificate.
- Whether existing ductwork is reused, altered, or replaced.
- The electrical work: a circuit, a disconnect, and sometimes a panel change.
- Refrigerant line length and how the outdoor unit is mounted.
- Permits and inspection, which vary by municipality.
- Removing and disposing of the old equipment.
- Local labor rates and how busy the season is.
- Rebates and tax credits, which change and have deadlines.
Product history
- O-ES-09-HP-C-230C-O1 changed its certified heat output at 17°F on AHRI certificate 217447801 from 9,800 Btu/h to 12,000 Btu/h in the certified data between August 2025 and September 2026.
- O-ES-09-HP-C-230C-O1 first appeared in the certified data between May 2025 and June 2025.
History and definitions
History
- First certified record
- Most recent certified record
- Measurements reported
- May 23, 2025
- Status
- In the certified data
Field definitions
- COP
- Heat delivered for each unit of electricity used. A COP of 2.5 gives 2.5 times the heat of an electric baseboard heater.
- HSPF2
- Heating efficiency over a typical season. Higher uses less electricity.
- SEER2
- Cooling efficiency over a typical season. Higher uses less electricity.
- EER2
- Cooling output divided by electrical input in the 95°F full-load test, in Btu/h per watt.
- Cold output
- Heat output at 5°F as a percentage of the 47°F rating.
- % of rating at 17°F
- Heat output at 17°F as a percentage of the 47°F rating.
NR not in the certified dataNC not cold-climate certifiedSP single pairing onlyVP varies by pairing; see the pairings tableWD withdrawn since the certified data was last read