1. the process of removing ash or ash-like residue from something, such as a fireplace, furnace, or industrial equipment
Usage: present participle of 'deash'; technical/industrial context

Examples

• The maintenance crew performed regular deashing of the boiler to maintain efficiency.
• Deashing the fireplace is an important part of winter home maintenance.
• Industrial deashing equipment helps factories manage combustion byproducts.
• After deashing the furnace, the technician checked for any damage to the interior.