FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL (steam generation F22)

Introduced: September 1968

Description

F24H encompasses fluid heating systems that generate heat through active means such as heat pumps, combustion, or electrical resistance to warm water, air, or other fluids for space heating, domestic hot water, and industrial applications. The subclass covers the overall design, integration, and operation of heater units combining heat sources with heat transfer mechanisms, including heat distribution networks and control systems. This classification excludes specific combustion chamber designs (covered in F23), dedicated heat exchanger elements (F28), and refrigeration cycles when classified outside heating contexts (F25). Related heating technologies employing passive solar collection or waste heat recovery are separately classified in their respective technology areas.

Title

Titles differ between systems:

IPC: FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL

CPC: FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL (steam generation F22)

Full Title

Full titles differ between systems:

IPC:

FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL

CPC:

FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL (steam generation F22)

Of 13 combined children, 8 exist in both systems.

5 codes are CPC-only extensions.

Note: 5 CPC extensions are marked as secondary classification only.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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F24H 1/00 Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters (steam boilers F22B) +6 CPC IPC+CPC Available in IPC and CPC
F24H 15/00 Control of fluid heaters since 2022 IPC+CPC Available in IPC and CPC
F24H 2210/00 Burner and heat exchanger are integrated 2nd only CPC only CPC only
F24H 2220/00 Measures for environmentally correct disposal 2nd only CPC only CPC only
F24H 2230/00 Solid fuel fired boiler 2nd only +1 CPC CPC only CPC only
F24H 2240/00 Fluid heaters having electrical generators 2nd only +6 CPC CPC only CPC only
F24H 2250/00 Electrical heat generating means 2nd only +7 CPC CPC only CPC only
F24H 3/00 Air heaters +3 CPC IPC+CPC Available in IPC and CPC
F24H 4/00 Fluid heaters characterised by the use of heat pumps since 1990 IPC+CPC Available in IPC and CPC
F24H 6/00 Combined water and air heaters IPC+CPC Available in IPC and CPC
F24H 7/00 Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release +3 CPC IPC+CPC Available in IPC and CPC
F24H 8/00 Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation since 1990 +2 CPC IPC+CPC Available in IPC and CPC
F24H 9/00 Details +4 CPC IPC+CPC Available in IPC and CPC