I posted a video on YouTube recently with an early demonstration of the my heating system. Everything is functioning the way I expect so far, and I’m continuing to work on the software. I’m quite impressed with how much air it can move. Here’s a link to the video, or watch via the embed.
In case you’re wondering about the variety of colors – it’s just what I had on hand for plastic. Most everything you see in video has been 3D-printed. I’ll have to iterate the design once more to address some things I found with this prototype. The next iteration will be printed in a plastic that’s suitable for installation in a plane, and it will be just plain black (like the centrifugal fan housing in the video).