For a 2026 DIY mini split comparison, check more than SEER2: a 24 SEER2 rating...

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For a 2026 DIY mini split comparison, check more than SEER2: a 24 SEER2 rating looks good, but line-set length and cold-weather output matter too. I’d compare 8-75 ft line-set options and minimum operating temperatures before choosing.