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Unvented central heating system

Postby Ed1 » Mon Apr 13, 2009 11:12 am


I have a query regarding my central heating system and was wondering is anyone knows the answer. I think my system is an unvented central heating system. basically we have high pressure hot water in showers taps etc, a hot water cylinder but no tank in the loft.

If I put the hot water to heat up and then just put the central heating on the hot water that feeds the showers then goes cold. I thought that the hot water that feeds the tabs/shower would be different to that that supplies the radiators therefore do not understand why putting the heating on makes the shower cold before any water is used.

I anyone could enlighten me that would be much appreciatted.

many thanks

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Simply Build It

Postby rosebery » Mon Apr 13, 2009 9:50 pm

The unvented cylinder is for your hot water not the central heating. It doesn't make sense to me so getting yourself a plumber with a G3 ticket seems a sensible approach to me.

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