Best-of lists

Every single-zone mini-split we cover that its maker says heats at -4°F or colder, ranked by the lowest outdoor temperature it still heats at.

The single-zone mini-splits we cover with the highest maker-stated SEER2 ratings, ranked by SEER2, with cooling BTU, voltage and low-temperature heating.

Single-zone mini-splits that run on 115V (110-120V) circuits, ranked by the maker's SEER2 rating, with BTU and low-temperature heating.

Single-zone mini-splits rated 8,500-9,500 BTU, for rooms of about 350-400 sq ft, ranked by the maker's SEER2 rating.

Single-zone mini-splits rated 11,500-12,600 BTU, for rooms of about 450-550 sq ft, ranked by the maker's SEER2 rating, with voltage and low-temperature heating.

Single-zone mini-splits rated 17,000-18,500 BTU, for rooms of about 700-1,000 sq ft, ranked by the maker's SEER2 rating.

Single-zone mini-splits rated 22,000-25,000 BTU, for spaces of about 1,200-1,500 sq ft, ranked by the maker's SEER2 rating.

Mini-splits with pre-charged quick-connect line sets that their makers sell for DIY installation, ranked by cooling capacity.

Two-, three- and four-zone mini-split systems we cover, ranked by the maker's SEER2 rating, with total BTU and zones.

Window and through-the-wall units that heat with a heat pump, not just a resistance heater, ranked by cooling capacity, with heating BTU and voltage.