IPC Subgroup
F24D 3/18 using heat pumps
Introduced: January 1990
Last revised: January 2006
Full Title
Hot-water central heating systems > using heat pumps
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