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

https://beaussmartwords.rivetgarden.com/posts/how-much-does-a-12-000-btu-mini-split-cost-per-month-to-run-is-85-135-realistic

This 2026 DIY cold-climate mini split comparison looks at Zone Air and MRCOOL for low-temp heating, install needs, and value. Check each unit’s heating capacity at -22°F, along with line-set and electrical requirements, before choosing.