- Qualifies if
- A single-zone mini-split rated 8,500-9,500 BTU of cooling with a stated SEER2.
- Ranked by
- SEER2 (maker) (highest first)
- Shown
- The top 8 of 10 products in our catalog that meet the rule.
DELLA Optima 9,000 BTU 230V
The highest SEER2 (23) of the 10 mini-splits of this size we cover.
DELLA Serena 9,000 BTU 230V
22 SEER2, the 2nd best among similar-size systems we cover.
Temprium 9,000 BTU 115V Mini-Split
22 SEER2, the 2nd best among similar-size systems we cover.
Cooper & Hunter 9,000 BTU 230V Mini-Split
21.2 SEER2 with 230V power and R-454B refrigerant.
COSTWAY 9,000 BTU 230V Mini-Split, 21 SEER2
21 SEER2 with 230V power and R-32 refrigerant.
DELLA Motto 9,100 BTU 115V
20.5 SEER2 with 115V power and R-32 refrigerant.
TOSOT 9,000 BTU 115V Mini-Split
20 SEER2 with 115V power and R-32 refrigerant.
ROVSUN 9,000 BTU 115V Mini-Split
20 SEER2 with 115V power and R-32 refrigerant.
How to choose between them
Size to the room first: the ENERGY STAR chart, adjusted for sun, ceiling height and climate, decides the BTU. Our BTU calculator does it for you and lists the systems in range.
SEER2 is the maker's seasonal cooling efficiency under the 2023 DOE test; each point higher cuts cooling energy by roughly 5% at the same output. Heating efficiency (HSPF2) and the low-temperature rating matter more in cold climates.
Rankings follow the rule and order stated above, using makers' published specifications and listed prices. How we research · Disclosure