Fitting a mixer shower

[Flash987]

Hi, I currently have an electric shower with a cold water mains feed to it. I would like to fit a mixer shower ( head and controls on wall only) I have a conventional boiler (situated on ground floor) with cold water storage tank in my loft that feeds a cylinder in my airing cupboard (situated on first floor) I was wondering if I can feed a mixer shower with a mains cold water feed and a feed from the pipe that delivers water to the hot tap on my bathroom sink? If this isn't possible could you suggest a way I could do it? Plus I have a pump connected to central heating and hot water systems (I added that because I'm not sure if that means my hot water is gravity fed or not)Regards Flash

 

[SilentMike]

whats wrong with the electric shower? i always think its a good idea to have one anything goes wrong with your boiler you got nothing IMHO

as to your question it wont work that way you will probably need a shower pump

 

[SimonG]

Get somebody in who knows what they are doing, save you a lot of headaches.

 

[Guest123]

Agree with SimonG, get someone in who's a professional installer. Trying to save money by doing it yourself will only cost you money.

In answer to your question, you cannot mix cold mains pressure with a gravity fed hot water supply. Both supplies need to be equal or as close too as each other with any thermostatic unit, not just a shower. If the HW is pumped then the cold mains may be balanced with it by using a pressure reducing valve on the cold mains to balance the pressure with the hot pumped supply.