I'm from Russia. You can see a lot here. Will tell you about one very old wooden building. In Sverdlovsk region there is a small village of Nizhnyaya Sinyachikha. This village is famous for its Museum under the open sky. Here are various wooden buildings from the 18th and 19th centuries. Especially it is necessary to say about the bath in black. Her frame folded in three rows of thick logs. each log sawn down the middle. The thickness of each log is approximately 55 centimeters! 
Bath were heated in black. "What is it?" - You will ask. All the smoke from the stone oven is located inside the baths. Pipe of a bath there. Even the smoke escaped through a small hole in the top of the baths. In the bath, in the near left corner, at the door of the oven of stone, without the tube. Along the right and rear walls are drawn the benches. This massive bath hardly anyone saw.