Gas hot water overflowing more than it should

Colleen requested 2 quotes from Plumbers in Fairfield

when hot water on gas hot water systemn is used water continues to overflow for about half an hour and wasting alot of water and gas

My rheemglas electric water heater (250 litre) stopped working 2 days.
Hot water heater stopped working. main electricity appears fine. on seperate...

9y/o DUX electric unit has stopped working, urgent
9y/o DUX electric hot water unit has stopped working

Hot water system needs to be repaired or replaced
Hot water system needs to be repaired or replaced

Rpr edwards solar HWS w/electric booster. Switch power but no hot water
We have no hot water, the system is an edwards solar hot water system with an...