Lately the hot water in my house is very lukewarm, this runs out in no time. I then noticed that the pilot light in the boiler is not as full as it used to be, also the noise from the boiler has reduced. Every once in a while the pilot light becomes full and the sound gets louder as it used to when it was fine, but this usually last for only about 3 minutes. I have no clue as to what is going on. Please help.
