There are numerous types of manufactured wood logs on the market. Some of them use chemical additives and those logs are generally prohibited for use in a wood stove. However, if you burn a manufactured log that is made of 100% wood, with no chemical additive, there is no problem. Wood is wood and the stove is designed to burn it. What we cannot control is the type of chemicals that can be inserted in different types of manufactured logs. The composition of the manufactured logs should be very clear on the log's packaging. If there are chemical additives, the log manufacturer should have a note on the log's packaging clearly stating that the use of the logs in a wood stove is strictly prohibited. Please note that manufactured logs burn hotter. We suggest that home owners try 2 or 3 logs first, and see how it goes. They should use a chimney thermometer and make sure that the flue temperature does not go into the "overheat" range. Manufactured logs have a lower density and the humidity level is generally lower. This is why they release more heat over a shorter period.