For 2026, the best cold-climate mini splits deliver up to 24 SEER2 efficiency...

https://kylersgreatblogs.lumenforgex.com/posts/where-should-i-mount-the-outdoor-unit-in-deep-snow-areas

For 2026, the best cold-climate mini splits deliver up to 24 SEER2 efficiency and heat down to -22°F, making them great for harsh winters. Expect to save $1,500 to $3,000 by DIY installing using line sets from 8 to 75 ft