Why it matters
The DELLA Motto 9,100 BTU 115V is rated at 9,100 BTU of cooling and 10,000 BTU of heating. On the ENERGY STAR room sizing chart that suits about 350 to 400 sq ft of average room; the maker says up to 450 sq ft. It runs on 115V, so it needs a dedicated household circuit rather than a 240V line.
Its 20.5 SEER2 ranks 6 of 10 among the mini-splits within about 12% of its capacity that we cover; the most efficient is the DELLA Optima 9,000 BTU 230V at 23. The maker says heat-pump heating keeps working down to 5°F outside; below that you need another heat source. Indoor noise is listed at 27 dB at its quietest setting.
Expect a professional install: the copper lines are connected, pressure-checked and vacuumed before the refrigerant is released. It uses R-32 refrigerant, one of the lower-impact A2L refrigerants new systems moved to in 2025.
The listing gives dimensions of 7.91 inD x 31.18 inW x 11.5 inH, a shipping or unit weight of 65 pounds, a 1,200 W power draw and air conditioner, manual in the box.
Who it's for, and who should skip it
Good fit if
- Rooms of about 350-400 sq ft
- Homes without a spare 240V circuit
Look elsewhere if
- Primary heat in cold climates
- Spaces much larger than 400 sq ft
- Owners who want to avoid a licensed install
Pros and cons
Pros
- 20.5 SEER2
- 10,000 BTU heating stated
- Heats down to 5°F
- Quiet indoor head (27 dB)
Cons
- Heating stops around 5°F
- Professional install recommended
Limitations to weigh
- Capacity and efficiency are the maker's ratings; real output depends on the install, the line length and the weather.
- Heat pumps lose heating capacity as it gets colder; size for your climate with the BTU calculator.
- The federal 25C tax credit ended for systems installed after 2025; check your utility for current rebates.
Specifications
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Capacity | 0.75 tons | Retailer |
|---|---|---|
| Cooling capacity (maker) | 9100 BTU | Retailer |
| Features (seller) | Alexa and WiFi Enabled, Energy Efficient, Heating and Cooling Function, Quieter, Variable Speed | Retailer |
| Dimensions (seller) | 7.91"D x 31.18"W x 11.5"H | Retailer |
| SEER (maker) | 20.5 | Retailer |
| Voltage | 115 V | Retailer |
| Noise (seller) | 27 db | Retailer |
| Refrigerant | R-32 | Retailer |
| Wattage | 1200 W | Retailer |
| Room size (maker) | 450 sq ft | Retailer |
| Model number | 9K1VRH-20S-JA-I+O | Retailer |
| Product weight | 65 lb | Retailer |
| Control | Remote | Retailer |
| Heating capacity (maker) | 10000 BTU | Retailer |
| SEER2 (maker) | 20.5 | Retailer |
| Heats down to (maker) | 5°F | Retailer |
Alternatives worth comparing
More ductless mini-splits we cover
- TOSOT 9,000 BTU 115V Mini-Split
- TOSOT 12,000 BTU 115V Mini-Split
- Senville LETO 9,000 BTU 115V
- Cooper & Hunter 6,000 BTU 115V Mini-Split
All ductless mini-splits, compared in one table · Every DELLA product we cover
Final verdict
A straightforward choice for a 350-400 sq ft room. Check that 9,100 BTU fits your room with the BTU calculator before you buy.
Where to buy
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