I'm too dumb to link stuff, but Supply carries a slant fin kicker
Strange, found em but they didn’t turn up on my original search for kick space heater.
Biggest issue is this will be going under a book cabinet.
I need to head back anyways, they have an odd heat pump setup in the crawl space. Need to take a drill and a temp probe to see how long a piece of adapter plenum I need to make to get the HX far enough away to avoid freezing.
Have a Trane outside with a GE unit in the crawl space.