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IPC Main Group
F24D 3/00

Hot-water central heating systems

Introduced: September 1968

Last revised: January 2022

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
HEATING; RANGES; VENTILATING
Subclass:
DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR

6 direct subcodes

Child Classifications

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  • F24D 3/02 with forced circulation, e.g. by pumps
  • F24D 3/08 in combination with systems for domestic hot-water supply
  • F24D 3/1 Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks
  • F24D 3/18 using heat pumps