boiler
type: Concept
preferred label: دیگ بخار @fa
related: soot blower

soot blower
type: Concept
broader: blower
preferred label: دوده‌دم @fa
related: soot
related: boiler

blower
type: Concept
narrower: soot blower
preferred label: دمنده @fa

soot
type: Concept
preferred label: دوده گرفتن @fa
related: soot blower