Mini-Split Heating Capacity at 5°F: What the Spec Sheets Actually Show
A 12,000 BTU mini-split doesn't make 12,000 BTU of heat on a 5°F night. Here's what MRCOOL's own performance tables show, size by size, and how to plan for it.
Topic
Cold-Climate Performance
What the spec sheets say a mini-split actually delivers at 5°F and below.