I have a worcester combi boiler and although my heating is fine and the hot water downstairs is fine I am only getting luke warm water when trying to run a bath or have a shower.
Try not turning the tap on as far. The water coming into the house is alot colder at this time of year. If it flows through the boiler too fast it doesn't pick up enough heat and hence luke warm water. Only turn the tap 1/2 way on water should be much warmer.
Tony T
February 2010
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