I've been wanting to add some more cabin heat to my airplane. Have the radiator in the cabin, but too much air leakage to keep the cabin warm.

Am pretty excited about this product I just saw in Kitplanes.

https://customweldingproducts.com/products/

This is definitely on my to-do list. I would like to plumb it into the cabin so the pilot and passenger each have their own controls.

Any ideas on how to get ram air into the heater and then on into the cabin would be appreciated.

Also, have been looking for pictures of how to seal the elevator slots, but haven't found any. I get a lot of cold air coming forward into the cabin from the tail.

Any other ideas on sealing the cabin are welcome.

Rodney