Changes in kiln temperatures and humidities are based on the MC of the lumber being dried, which in turn is determined from properly prepared kiln samples.
Conventional and Elevated Temperature Schedules: Hardwoods (Tables 1-123) .. operators and others interested in kiln-drying wood, kiln schedules that are .
Normal Temperature or Conventional Temperature Kiln Drying .. . How Wood Dries – Shrinkage, Stresses, Moisture Gradients.. . Typically, the approach is to graph the present schedule as a function of dry-bulb or EMC versus moisture .
Temperatures inside the kiln range from 120 to 190 degrees F, depending on the stage of drying. Although there are kilns in which temperatures reach up to 240 degrees F, they are usually limited to softwoods that dry very easily and low-value hardwoods.
Kiln drying wood at elevated temperatures also has many other secondary effects as well, such as killing powderpost beetles (a destructive wood pest) in all .
When lumber companies kiln dry their wood, they do so in a controlled environment using carefully monitored temperature and humidity levels in order to avoid .