Why it matters
The Senville 2-Zone 28,000 BTU 230V Mini-Split is rated at 28,000 BTU of cooling. It splits that capacity between 2 indoor heads, so size each head to its own room and check the total against the condenser. It needs a 230V (208/240V) circuit, which usually means an electrician if one isn't already at the spot.
Its 23 SEER ranks 1 of 2 among the multi-zone systems within about 12% of its capacity that we cover, the top of that group. The listing doesn't give a low-temperature heating limit, so treat it as a mild-climate heat pump until the maker confirms one. Indoor noise is listed at 24 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-454B refrigerant, one of the lower-impact A2L refrigerants new systems moved to in 2025.
The listing gives dimensions of 9.18 inD x 33.4 inW x 11.76 inH and 2 indoor air handlers (12000 btu each), 1 outdoor condenser (28000 btu) in the box.
Who it's for, and who should skip it
Good fit if
- Whole floors with several rooms
- Lower running costs than most same-size systems
Look elsewhere if
- Primary heat in cold climates
- Owners who want to avoid a licensed install
Pros and cons
Pros
- 23 SEER
- Quiet indoor head (24 dB)
Cons
- Low-temperature heating not stated
- Needs a 230V circuit
- 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 | 2.5 tons | Retailer |
|---|---|---|
| Cooling capacity (maker) | 28000 BTU | Retailer |
| Features (seller) | Alexa Enabled | Retailer |
| Dimensions (seller) | 9.18"D x 33.4"W x 11.76"H | Retailer |
| SEER (maker) | 23 | Retailer |
| Voltage | 230 V | Retailer |
| Noise (seller) | 24 db | Retailer |
| Refrigerant | R-454B | Retailer |
| Wattage | 13.86 Milliwatts | Retailer |
| Control | Voice | Retailer |
| Model number | SENA-30HF/D | Retailer |
| Room size (maker) | 1500 sq ft | Retailer |
Alternatives worth comparing
More multi-zone systems we cover
- Senville 2-Zone 36,000 BTU 230V Mini-Split
- Albott 3-Zone (12K+12K+12K) 36,000 BTU 230V Mini-Split
- DELLA 3-Zone (6K+9K+12K) 20,000 BTU 230V Mini-Split
- Gree 3-Zone 24,000 BTU 230V Mini-Split
All multi-zone systems, compared in one table · Every Senville product we cover
Final verdict
A 2-zone system worth comparing. Check that 28,000 BTU fits your room with the BTU calculator before you buy.
Where to buy
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