Those are wonderful photos Orestes. Thanks for posting them. Glad you are finding the tube combinations to your liking. I try to make as many people happy as possible.
The sun was out for a little while today so I got a photo of a very interesting HI. It is pine from a porch post on an old house that was torn down. The wood is over 150 years old as it was a very old house and I have had the wood for a long time. I normally wouldn't be able to use pine wood because it is so soft, but orienting the grain 90 degrees makes rings of grains which will hold the threads.
It is very difficult to turn in this orientation as there is end grain on two sides. The end grain parts also get much hotter than the side grain parts of the HI. It just proves that heat does not always go up. It follows the grain lines in wood and can travel sideways. The mahogany Toasty Tower that I gave Dave was turned with the grain turned 90 degrees and demonstrates the heat migration very well.
I had sworn I would never make a Toasty Top from pine, but it seems to work with the HI.
As far as woods from which it can be made, the list is still growing. I do need to get more purpleheart and osage orange wood.
http://www.toasty-top.com/images/pine150hi.jpg
Not sure I got your email staticsunn. Can you send it again? alan@toasty-top.com