This 2026 DIY cold-climate mini split comparison looks at Zone Air and MRCOOL...

https://jaidenssuperop-eds.hexaforgey.com/posts/can-i-run-a-9-000-btu-115v-mini-split-on-a-15a-dedicated-circuit

This 2026 DIY cold-climate mini split comparison looks at Zone Air and MRCOOL for winter heat, kit parts, line length, wiring, and upkeep. One model is rated to -22°F; check its heating output at your local design temperature before you buy.