I'm interested in thermo-treated wood.
The article in the link talks about various processes including oil heated from Menz in Germany.
Westwood is listed for the US.
How available and how much is this product.

Here's an except--
Westwood (Westwood - USA, Canada, Russia)

Computer driven technology with fitback control uses the principally new way to control reactions inside the wood during the thermo-treatment. The modern system monitors and manages over 20 parameters every 5 seconds to control 3-dimensional heat wave inside the Chamber. As a result, WESTWOOD technology cycle time is shorter and optimized by the system itself. During an intensive heat treatment phase the air and wood temperature is raised to a level of 400 - 450� F. When the target level is reached the temperature remains constant for 2-3 hours. Steam is used to prevent the wood from burning and cracking. The system automatically adjusts to the type, size, humidity, chemical composition and geometry of the primary wood in order to obtain predictable results. This is especially important for hardwood species, which are difficult to process in manual systems with single temperature control.

At present, WESTWOOD is the most state-of-the-art wood heat treatment technology incorporating all achievements and development experience of similar technological processes. By adding high-end sensors and control systems from Omron (Japan), WESTWOOD technology allows to control processes through Internet, even through cell phones. See details at Westwood USA.

The link to the German description gives an interesting alternative.

Here is a link that might be useful: Thermo-treated wood