I’m just wondering if this is something anyone has heard of or tried? As a makeshift convection fan in an oven? If all the pieces were metal and nothing had any kind of paint or coating, could you turn your regular oven into a convection oven on the cheap? Or would the temperature in the oven be too evenly distributed to make the fan move? (The fan works from heat rising when placed on top of a woodstove) Also what would you bake to test its effectiveness if the fan blades did spin?
Or is there a subreddit that this question might be more appropriate for?