Water heaters having plural combustion chambers

Full Title

Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters > Water heaters having plural combustion chambers

Classification Context

Section:

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

Class:

HEATING; RANGES; VENTILATING

Subclass:

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