The heating equipment for wood drying kilns mainly includes the following types: 1. Boiler: Boiler is one of the commonly used heating equipment in wood drying kilns. The boiler transfers the heat energy generated by fuel combustion to the air or thermal medium inside the drying kiln, in order to increase the temperature inside the kiln and achieve the drying effect of wood. Common types of boilers include coal-fired boilers, oil fired boilers, gas boilers, etc.