Central heating in flat. Problem with hot water in taps.

[mateo]

Hello,

I have few questions regarding central heating in Scotland. I have moved to Scotland a few weeks ago and I can't understand heating installation.Well, I have a problem with hot water in taps both in the kitchen and in the bathroom, sometimes I have cold water, sometimes warm, and sometimes hot. I don't know what is the problem. Does water shouldn't be heating by an electric boiler which also heats water in shower, why sometimes is the temperature different in hot water tap?

Thanks in advance

 

[lame plumber]

too higher flow rate will give colder water, turn the tap down a bit to get hotter water