Crossword puzzle clue "part of an old heating system"

Here are the possible solutions for part of an old heating system clue

Answer
Clue
Relevancy
boiler
Clue
Part of an old heating system
Part of a central heating system
Heating system component
Definition
a vessel for boiling
duct
Clue
Heating system part
Heating system vent
Heating system conduit
Definition
a pipe or tube for carrying fluid, cables etc.
oiltank
Clue
Part of a home heating system
userinterface
Clue
System-to-system system

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