thermostat, does this exist?

Question

We've moved into a fairly old property which we will refurbish in the not too distant future. At the moment we have a hot water tank which doesn't have a thermostat, we have connected up a timer but occasionally the tank overheats and the boiling water comes out of our overflow. As the tank doesn't have an internal thermostat I was hoping to find a stand alone one which could be strapped to the side of the tank.

Does this kind of thing exist? I can't find anything on the net.

Cheers,

Darryl

Palindr☻me · Accepted Answer

Are you sure that it doesn't have a thermostat? Like, taken the (black?) cover where the wires disappear into the housing and look? (mains off first, naturally). You may find a thermostat wired inside..

But:

Yes they exist. eg

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Note that is is not intended to control an immersion heater directly - it can only switch 6A. Many can only switch 3A. So it needs to be used with a contactor/relay, rated for the immersion heater current and in a suitable enclosure with the correct protective devices.

Darryl Bailie · Answer

Cheers,I'll have a look tonight but this looks just the ticketDarryl

Phil Anthropist · Answer

Are you saying that you use an immersion heater to heat your water but it doesn't cut out when the water gets hot, but carries on heating the water until it boils over? Or is your water heated by a boiler of some kind? If you use an immersion heater they usually have a built-in thermostat, but they can fail and result in the water being boiled.

ARWadsworth · Answer

Unless there is a way of using one of the thermostats belowthen go with Sue's idea but useas it will switch 16 amps and not need a seperate relay.Adam

thermostat, does this exist?

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