Close coupled toilets with insulated cistern


19 Jun 2016
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United Kingdom
Is it possible to buy a closed coupled toilet with an insulated cistern? I would like to prevent condensation on the cistern in the colder months.

I am aware of suggestions to insulate them yourself with polystyrene, but apparently this only lasts a few years (and probably less if I attempt the job). And I am unable to mix in any hot water.
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r_c, good evening

As an off the wall suggestion have a look at the link below?

It has obvious drawbacks, but it utilises the existing Cistern, a saving of a few quid???

get yer granny to knit you a toilet cosy ;)


Sort the cause, good ventilation, remove the moist air and it reduce it. You could use a mixing valve and fill it with warm water but that's just a waste of money IMO.
Love the foam insulation - mad genius! But I wouldn't bother with the back wall, I would just seal around the cistern with silicon to exclude damp air. The foam will reduce the flush volume as well, same as the old brick idea.
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Condensation on the cistern would have been considered a luxury years ago.
The biggest problem was stopping them freezing.

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