Technical Guide 02: Guidelines for the conversion of solid fuel underfed boilers from coal to wood pellet

This Guide is intended to provide guidance on the conversion of existing coal fired boilers to wood pellet operation. The number of boilers running on wood pellets in New Zealand (particularly in schools) continues to rise, as does the number of organisations offering installation and conversion services. It is essential that the lessons from early conversions are used to help inform this growing industry. Although this Guide has been formulated on the basis of experience with wood pellet firing, it can with care, be used in relation to firing dry wood chip.