Commercial kitchens generate grease-laden vapours that accumulate rapidly within exhaust systems. Without routine degreasing, these systems pose serious fire hazards and suffer performance degradation.
This project involved a hotel property in Selangor operating three active kitchen lines connected to a multi-level vertical riser duct system.
Scope of Work
Kitchen hood degreasing
Vertical riser duct cleaning
Exhaust fan cleaning
Installation of new access panels for maintenance compliance
System Details
3 commercial kitchen lines
Multi-storey exhaust riser configuration
High-volume cooking operations
Issues Identified
Inspection revealed:
Heavy grease accumulation inside horizontal and vertical duct sections
Significant fire hazard risk due to combustible deposits
Reduced extraction efficiency affecting kitchen ventilation performance
Grease accumulation in vertical risers is particularly concerning in hotel environments, where fire spread risk must be tightly controlled.
Technical Approach
The cleaning process involved:
Manual and mechanical grease scraping
Chemical degreasing agents suitable for commercial kitchen exhaust systems
High-pressure cleaning for vertical riser sections
Exhaust fan dismantling and deep cleaning
Access panels were installed strategically along the riser to ensure future maintenance accessibility and regulatory compliance.
Outcome
Complete removal of grease build-up
Restored exhaust airflow performance
Improved kitchen ventilation efficiency
Reduced fire hazard risk
Enhanced long-term serviceability through access panel installation
