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big header tank filling with hot water?

hi have noticed last couple weeks that over flow hasbbeen flowing constantly. have checked airing cupboard and discovered that hot water header tank is filling with hot water , reason for over flow kicking out ,. what would cause this?

tez, July 2011

home Fix label Heating label_important Home Heating Systemsdone

the coil in your hot water cylinder could have split.

bengas, July 2011

exactly what dave said.....

jeff, July 2011

if your hot water is heated by a boiler normally the coil is split inside your cylinder and filling up your cylinder with excess water from the heating system because it has no where to go it travels up that pipe that bends over your tank ,and comes out of there

dave, July 2011

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home label Heating label_important Home Heating Systems

home Fix label Heating label_important Home Heating Systems

big header tank filling with hot water?

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big header tank filling with hot water?

I can answer this question ...

big header tank filling with hot water?

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