Watch out, Mr Cool :eek: :
https://signaturesolar.com/eg4-12k-mini-split-air-conditioner-heat-pump-12000-btu-seer2-28-5-plug-n-cool-do-it-yourself-installation/
9k and 12k BTU units listed for sale with DIY-friendly lineset. 18, 24, 36k models listed in Instl manual.
Mr Solar?? ?