Natural Gas heating - cold shower

[Davison]

Hi I have had Nat Gas hearting installed all good apart from the fact that I had visitors and they told me shower cold in upstairs en suite tap in sink and bidet running hot but unfortunately  shower cold - any advise please, I have the installer coming back in a few days to  check it out but baffles me Thanks

[Alicante Holiday Villas]

Daft question, but are you letting the water run for a quite a while beforehand? It can take longer for the hot water to come through sometimes.

[Spurs]

I suspect it's the pressure on the hot to low and cold to high you may need a pump fitting

[Davison]

thankx folks yes letting it run takes a long time hot n cold in sink taps but not shower give me an electric shower any day, hopefully chappy will resolve it tomorrow.

[kevinb]

If its a combi boiler there should hardly be any difference between the hot and cold pressure as they are both fed with mains water pressure.

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[Tony Gillam]

I've got a combi boiler here in UK. Depending on which tap it is, some take an age to run hot.

[Davison]

Thanks all result because I have thermostatically controlled taps in shower they couldnt cope so technician has put the mixer tap back and taken out the thermo one alls well now