How to find a fan that blows 90° from intake? - Lemmy.zip

I’m trying to circulate air in my house. We have a split level home (lower, middle, upper) and the lowest level is always too cold and highest level too warm. I want to move air from the lower level to at least the middle level. I need a fan, preferably small or thin profile that blows 90° from intake. Ideally a box fan that has a horizontal intake but exhausts up or sideways. What I’ve done in previous years is have a rotated fan that pointed up, intake from below, and was raised off the ground. The closest I’ve found is a carpet dryer drum style. It has round intakes on the side and a rectangular vent on the front. That would totally work but it’s way over powered for my situation. Also, it’s a bit wider than ideal, though slimmer than what I used last year.