We moved into our flat Aug 08. At start of 2009 the heat in the shower has only been slightly above lukewarm. I thought it may have been to do with us using the CH more and at higher temperature (during very cold couple of weeks), however the water still fails to heat up to the usual temperature.
The heat from the kitchen taps closer to the boiler is excellent. Being no expert, this leads me to believe the problem is not necessarily with the boiler.
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