Help! I have a 1950's heatrae sadia electric water sink boil

11 Oct 2009
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United Kingdom
This is an old fashioned electric water heater with spot, approx build in 1950's.

It is working fine other than a drip when the element is on to warm the water.

I have removed the bottom plates, but there are no markings or appliance numbers.

I think I need a new tap unit as replacing washers does solve the issues.

I cannot order any without model numbers, any ideas?


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I think you'll find that is normal, In fact it's designed to work that way.

The heater has a tap on the incoming mains water. When the tap is turned on, the cold water entering causes hot water to be displaced down the spout.

The spout, although it exits at the bottom passes through inside the heater to the top. This ensures that the tank is always kept full of water as a store and also keeps the electric element covered.

The spout also acts as a vent. When the stored water is heated, it expands and drips out of the spout If it didn't it would split the tank, so whatever you do, don't try to stop the drip!

Here's a sketch, a bit simplified, but it shows the idea.


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