Comparing DIY cold-climate mini splits for 2026? This guide looks at Zone Air...

https://sirachapete736.gumroad.com/p/why-do-people-say-mrcool-hyper-heat-is-nearly-twice-the-price-of-zone-air

Comparing DIY cold-climate mini splits for 2026? This guide looks at Zone Air and MRCOOL for low-temp heating, efficiency, included line sets, and install details, including what to check on a system rated to -22°F.