New27" electric Immersion Heater - only 4" of hot water in bath | Bathroom Advice | Plumbers Forums

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G

greenprodrive

Guys

In response to my central heating bioler failing (long story , £3k quote from plumber, and I can't afford it due to recession).. I have had a 27" electric immersion heater element installed in the upstairs36" hot water cylinder.

Works of it's own switch. Three times now have tried having it on for in excess of 3 hours each time, and each time only get approx 4 inches of water in the bath tub.
Is this normal ?

I've stuck my ear to the tank and can hear it faintly working (which it does for the entire 3 hours) [I know its the heater element becasue when I turn it off the sound goes away)

It has it's own thermostat set at 65degrees (and this hasn't triggered by the way) , so it all points to the element "working" , and yes the first few inches of bath water are hot, and then it goes col.

When it worked off the boiler, the bath water would (of course) heat up quicker, due to it being the bolier that did the heating, but also , much more hot water.

I'm stumped. Could it in some way rely on any of the pump/valves/domestic circulator stuff that were all "on" when the boiler was working ? [The plumber turned them all off]

Any help - much appreciated
 

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