Why it matters
The Senville 2-Zone 18,000 BTU 230V Mini-Split is rated at 18,000 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.
The maker rates it at 22.5 SEER. 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 61.5 dB at its quietest setting.
Expect a professional install: the copper lines are connected, pressure-checked and vacuumed before the refrigerant is released. The kit includes a 16ft. line set. It uses R-454B refrigerant, one of the lower-impact A2L refrigerants new systems moved to in 2025. Warranty, per the listing: 3 year (parts replacement)., 7 year (compressor).
The listing gives dimensions of 12.5 inD x 33.2 inW x 27 inH, a shipping or unit weight of 150 pounds, a 65 W power draw and indoor air handlers, outdoor condenser, installation kit with 16ft. line set and communication wire in the box.
Who it's for, and who should skip it
Good fit if
- Whole floors with several rooms
Look elsewhere if
- Primary heat in cold climates
- Owners who want to avoid a licensed install
Pros and cons
Pros
- 22.5 SEER
- 16ft. line set included
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 | 1.5 tons | Retailer |
|---|---|---|
| Cooling capacity (maker) | 18000 BTU | Retailer |
| Features (seller) | Alexa Enabled | Retailer |
| Dimensions (seller) | 12.5"D x 33.2"W x 27"H | Retailer |
| SEER (maker) | 22.5 | Retailer |
| Voltage | 230 V | Retailer |
| Noise (seller) | 61.5 db | Retailer |
| Refrigerant | R-454B | Retailer |
| Wattage | 65 W | Retailer |
| Product weight | 150 lb | Retailer |
| Control | App | Retailer |
| Model number | SENA-18HF/D | Retailer |
| Warranty | 3 year (parts replacement)., 7 year (compressor). | Retailer |
| Line set included | 16ft. line set | Retailer |
| Zones | 2 | Retailer |
Alternatives worth comparing
More multi-zone systems we cover
- Senville 2-Zone 28,000 BTU 230V Mini-Split
- Senville 2-Zone 36,000 BTU 230V Mini-Split
- TURBRO Greenland 3-Zone (2X9K+12K) 27,000 BTU 230V
- ROVSUN 3-Zone (9K+9K+12K) 28,000 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 18,000 BTU fits your room with the BTU calculator before you buy.
Where to buy
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