Last reviewed: November 11, 2026 · Reviewed by the Mercorp HVAC editorial team Short answer: if you will run your mini split for several hours a day, choose an inverter model. It uses less energy for the same cooling, holds a steadier temperature and runs quieter. A non-inverter unit only makes sense for a space … Read more
Last reviewed: November 11, 2026 · Reviewed by the Mercorp HVAC editorial team For a room with standard 8-foot ceilings and average insulation, Carrier’s sizing chart puts a 12,000 BTU (1-ton) mini split at roughly 250 to 450 square feet. Square footage is only the starting point, though: sun exposure, the number of people, a … Read more
Last reviewed: November 11, 2026 · Reviewed by the Mercorp HVAC editorial team If your mini split turns on but is not cooling, start with the simple causes: the wrong mode or set point, a dirty filter, or a blocked outdoor unit. You can check all three yourself in a few minutes. If it still … Read more
Last reviewed: November 11, 2026 · Reviewed by the Mercorp HVAC editorial team Most single-zone mini split installations in the U.S. cost $1,800 to $6,000 with equipment included, and a typical one-zone 9,000 to 12,000 BTU wall unit lands around $1,800 to $3,200 with basic labor, according to 2026 pricing data. Multi-zone systems run from … Read more