Melissa Garvey, Senior editor

I'm the senior editor here, so a lot of my week goes into deciding what stays off the list. A system that's only there because it's cheap this week, a coverage promise the manual doesn't back up, a ranking nobody has opened since the prices moved: those are the things I go looking for.

My routine is unglamorous and I like it that way. Spec sheet on one side, installation manual on the other, owner reviews underneath. When a listing promises a square-footage figure, I want to see what the manufacturer's own documents say, and which voltage and circuit the system expects. When owners keep describing the same thing (a remote that forgets its settings, a drain line that drips in the first humid week, heat that fades on the coldest mornings), I write it down and it ends up in the ranking notes.

Sizing is the subject I care about most. A floor-area chart is a starting point; sun, ceiling height and insulation move the load more than people expect. I write the guides on choosing a system, sizing, zones and mini splits versus central air, and I edit most of the others.

We read, we compare, and we keep the lists current. When a price moves or a better system turns up, the ranking moves with it.