HOT WATER SUPPLY METHOD AND APPARATUS FOR WATER HEATER

摘要

PROBLEM TO BE SOLVED: To provide a hot water supply method and apparatus for a water heater capable of preventing a tank from being deformed by disposing a flow control valve in a hot water supply piping even upon occurrence of a negative pressure phenomenon where a hot water supply flow rate is more increased with respect to a water supply flow rate in the warm water heater. SOLUTION: A warn water heater is adapted such that water W supplied into a tank 6 from a water supply piping 1 is heated in the tank 6, and is then supplied as hot water H from a hot water supply port 8 of the tank 6 via a hot water supply piping 13. There are disposed an air suction valve 9 and a flow rate adjusting valve 12 on the hot water supply piping 13 of the hot water supplier, and the flow rate adjusting valve 12 is drawn up to the state where it does not suck air upon full open of the hot water supply piping 13.