What does a licensed journeyman need to perform cleaning on a wood/oil combination unit?

A licensed journeyman requires an apprentice solid fuel license to perform cleaning on a wood/oil combination unit due to the specialized knowledge and skills necessary to handle solid fuel systems safely and effectively. This licensing ensures that the individual has received proper training and is familiar with applicable regulations regarding the maintenance and cleaning of these types of units, which may involve both wood and oil components.

The requirement for an apprenticeship solid fuel license emphasizes the safety and operational standards that must be met in handling these heating systems. This ensures that the individual has been educated on the specific practices surrounding solid fuels, including knowledge of combustion processes, efficiency, and maintenance protocols.

In this context, the other options do not meet the requirements or provide the necessary qualifications for performing cleaning tasks on wood/oil combination units. The emphasis on the solid fuel license illustrates the importance of specialized training in this area.