Water heater

A water heater includes a burner of a premixed type, a heat exchanger, and a fan suctioning combustion gas and exhausting combustion gas to the outside. The burner includes a burner case partitioned into a combustion chamber and a gas introduction chamber by a partition plate and a plurality of comb...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Wada, Norihide, Fujimoto, Yu
Format:	Patent
Sprache:	eng
Schlagworte:	AIR SUPPLY BLASTING BURNERS COMBUSTION APPARATUS COMBUSTION PROCESSES DRAUGHT-INDUCING FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL HEATING LIGHTING MECHANICAL ENGINEERING METHODS OF STEAM GENERATION RANGES STEAM BOILERS STEAM GENERATION SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	A water heater includes a burner of a premixed type, a heat exchanger, and a fan suctioning combustion gas and exhausting combustion gas to the outside. The burner includes a burner case partitioned into a combustion chamber and a gas introduction chamber by a partition plate and a plurality of combustion tubes arranged in the combustion chamber. An air supply opening for supplying air into the gas introduction chamber is provided in the burner case. The partition plate has a plurality of opening portions communicating with the inside of the combustion tubes and a plurality of through holes communicating with the outside of the combustion tubes within the combustion chamber. The air supply opening is constructed to have an opening area smaller than the total sum of the total of opening areas of the plurality of opening portions and the total of opening areas of the plurality of through holes.