Originally Posted by
dannyblackpool
Our house had a new ravenheat B&Q combi special fitted about 5 yrs ago when we bought it. Always has been a pain in arse with various problems, but currently have a odd one....
Central heating side is fine, Hot water though only get luke warm no matter how high you have setting, you have to throttle tap back by over half to get it hot enough to wash in etc, Baths are never hot enough.
Any ideas??????
I had a similar problem with my combi,same thing,if you open up the hot tap too much it would run colder.I was told it was a heat exchanger,if the hot tap was open too much the water flow was too fast going through it for it to heat up.Also recently if i was running hot water the rads came on,that was a faulty diverter valve.
Good luck.