The other option Susan mentioned, is steaming with Lava Rocks. We found stones, not yet the lava stones. But dark stones that keep a lot of heat. I have used them already and they produce steam.
When I started to bake bread, I soon discovered my bread tasted ok, but didn't look as beautiful as the ones on the sites I visited. Those breads looked really crunchy and mine didn't.
Thanks to Wild Yeast Susan for showing me a way, that was affordable and possible here in Thailand. Since that day, my bread looks better. This one is baked with steam. I like the real Artisan Bread, especially the sourdough ones, like this one I baked.