|  | F |
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

LIGHTING AND HEATING

|  | F24 |
HEATING; RANGES; VENTILATING (protecting plants by heating in gardens, orchards, or forests Fulltext... Hierarchy... Expanded...A01G 13/06; baking ovens and apparatus Fulltext... Hierarchy... Expanded...A21B; cooking devices other than ranges Fulltext... Hierarchy... Expanded...A47J; specially adapted for vehicles, see the relevant sub-classes of classes Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...B60-B64; combustion apparatus in general Fulltext... Hierarchy... Expanded...F23; drying Fulltext... Hierarchy... Expanded...F26B; ovens in general Fulltext... Hierarchy... Expanded...F27; electric heating elements and arrangements Fulltext... Hierarchy... Expanded...H05B)

|  | F24 |
Note(s) In this class, the following words are used with the meanings indicated: "Stove" includes an open fire. "Range" means an apparatus for cooking having elements that perform different cooking operations or cooking and heating operations.

|  | F24H |
WATER HEATERS; AIR HEATERS OR CONVECTION TYPE; ELEMENTS OR COMPONENTS OF DOMESTIC-HEATING OR HOT-WATER SUPPLY SYSTEMS (control valves per se Fulltext... Hierarchy... Expanded...F16K; devices for venting or aerating Fulltext... Hierarchy... Expanded...F16K 24/00; steam traps or like apparatus Fulltext... Hierarchy... Expanded...F16T; steam boilers Fulltext... Hierarchy... Expanded...F22; combustion apparatus Fulltext... Hierarchy... Expanded...F23; construction of radiator or other heat-exchange elements Fulltext... Hierarchy... Expanded...F28F; control devices per se Fulltext... Hierarchy... Expanded...G05; electric heating elements or arrangements Fulltext... Hierarchy... Expanded...H05B)

|  | F24H |
Note(s) In this sub-class The term "heater" refers not only to the heat-producing apparatus but also includes the apparatus by which heat is transferred to water on air.

|  | F24H 1/00 |
Water heaters, e.g. water-heating stove, boiler, flow-heater, water-storage heater; Heaters for liquids other than water, for central heating (Fulltext... Hierarchy... Expanded...F24H 7/00, Fulltext... Hierarchy... Expanded...F24H 9/00 take precedence; boilers for steam generation Fulltext... Hierarchy... Expanded...F22; such heaters combined with additional stoves or ranges Fulltext... Hierarchy... Expanded...F24B, Fulltext... Hierarchy... Expanded...F24C)

|  | F24H 1/00 |
Note(s) In the sub-groups of this group the term "water heater" is to be understood as including heaters for liquids other than water, for central heating.

|  | F24H 1/04 |
· | Mounting arrangements of water heaters or water-heating elements in domestic stoves or ranges

|  | F24H 1/06 |
· | Portable or mobile, e.g. collapsible

|  | F24H 1/08 |
· | Packaged or self-contained boilers, i.e. water heaters with control devices and pump in a single unit

|  | F24H 1/10 |
· | Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium

|  | F24H 1/12 |
· · | in which the water is separated from the heating medium

|  | F24H 1/14 |
· · · | by tubes, e.g. bent in serpentine form

|  | F24H 1/16 |
· · · · | bent in the form of coils

|  | F24H 1/18 |
· | Water-storage heaters (combined with water-heating stoves for central heating Fulltext... Hierarchy... Expanded...F24H 1/22)

|  | F24H 1/20 |
· · | with immersed heating elements, e.g. electric elements

|  | F24H 1/22 |
· | Water heaters other than continuous-flow or water-storage heaters, e.g. water-heating stove for central heating

|  | F24H 1/24 |
· · | with water mantle surrounding the combustion chamber or chambers (Fulltext... Hierarchy... Expanded...F24H 1/44 takes precedence)

|  | F24H 1/26 |
· · · | the water mantle forming an integral body

|  | F24H 1/28 |
· · · · | including one or more fire tubes, i.e. tubes containing fires or combustion products

|  | F24H 1/30 |
· · · | the water mantle being built-up from sections

|  | F24H 1/32 |
· · · · | with vertical sections arranged side by side

|  | F24H 1/34 |
· · | with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side (Fulltext... Hierarchy... Expanded...F24H 1/24, Fulltext... Hierarchy... Expanded...F24H 1/44 take precedence)

|  | F24H 1/36 |
· · · | the water chamber including one or more fire tubes

|  | F24H 1/38 |
· · | with water contained in separate elements, e.g. radiator-type element (Fulltext... Hierarchy... Expanded...F24H 1/40, Fulltext... Hierarchy... Expanded...F24H 1/44 take precedence)

|  | F24H 1/40 |
· · | with water tube or tubes, e.g coiled (Fulltext... Hierarchy... Expanded...F24H 1/44 takes precedence)

|  | F24H 1/42 |
· · · | in bundles

|  | F24H 1/44 |
· · | with combinations of two or more of the types of arrangements covered by groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F24H 1/24-F24H 1/40

|  | F24H 1/46 |
· | the heat being derived from steam or hot gas, e.g. exhaust gases (Fulltext... Hierarchy... Expanded...F24H 1/28 takes precedence)

|  | F24H 3/00 |
Air heaters (Fulltext... Hierarchy... Expanded...F24H 7/00 takes precedence; details Fulltext... Hierarchy... Expanded...F24H 9/00; stoves or ranges with additional provisions for convection heating of air Fulltext... Hierarchy... Expanded...F24B, Fulltext... Hierarchy... Expanded...F24C)

|  | F24H 3/02 |
· | with forced circulation (Fulltext... Hierarchy... Expanded...F24H 3/12 takes precedence)

|  | F24H 3/04 |
· · | the air being in direct contact with the heating medium, e.g. electric heating element

|  | F24H 3/06 |
· · | the air being kept separated from the heating medium, e.g. using forced circulation of air over radiators

|  | F24H 3/08 |
· · · | by tubes

|  | F24H 3/10 |
· · · | by plates

|  | F24H 3/12 |
· | with additional heating arrangements

|  | F24H 3/14 |
· | the heat being derived from steam or hot gas, e.g. exhaust gases

|  | F24H 6/00 |
Combined water and air heaters

|  | F24H 7/00 |
Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release

|  | F24H 7/02 |
· | the released heat being conveyed to a transfer fluid, e.g. air, water

|  | F24H 7/04 |
· · | with forced circulation

|  | F24H 7/06 |
· | the released heat being radiated

|  | F24H 9/00 |
Details

|  | F24H 9/02 |
· | Casings; Cover lids; Ornamental panels

|  | F24H 9/04 |
· · | for radiators

|  | F24H 9/06 |
· | Arrangement of mountings or supports, e.g. bracket, leg

|  | F24H 9/08 |
· · | for installation of heaters on ceilings, floors or walls, e.g. panel units

|  | F24H 9/10 |
· · · | in skirtings

|  | F24H 9/12 |
· | Connecting heaters to circulation pipes (pipe joints in general Fulltext... Hierarchy... Expanded...F16L)

|  | F24H 9/14 |
· | Connecting different sections, e.g. in water heater (in radiators Fulltext... Hierarchy... Expanded...F28F 9/26)

|  | F24H 9/16 |
· | Arrangements for water drainage (in pipes or pipe systems in general Fulltext... Hierarchy... Expanded...F16L 55/00)

|  | F24H 9/18 |
· | Arrangement or mounting of grates, burners, or heating elements (burners Fulltext... Hierarchy... Expanded...F23D; grates Fulltext... Hierarchy... Expanded...F23H; electric heating elements Fulltext... Hierarchy... Expanded...H05B)

|  | F24H 9/20 |
· | Arrangement or mounting of control or safety devices (control devices per se Fulltext... Hierarchy... Expanded...F16K; Fulltext... Hierarchy... Expanded...G05; safety devices for burners Fulltext... Hierarchy... Expanded...F23D; combustion control devices Fulltext... Hierarchy... Expanded...F23N)