Hi Guys, slight problem with my central heating, the rads seem to make a humming noise and also most of the time the rads are hot but I seem to get cold spots on two rads (living room & 1 bedroom) the other 5 are piping hot all the time. I fitted new rads upstairs (the downstairs ones are old not sure of age prob 10yrs) the copper pipe is 8mm microbore & I have two tanks in the loft and a hot water tank on my second floor.
Also when I drain it off lots of black stuff comes out ( probably sludge not sure) I'm thinking about using Sentinel cleaner could anyone advise which one I should use (there are so many) and how to use it, & if it would do any good I heard of power flush but dont really want to do that.
Second prob if anyone can advise my boiler is a glow worm hideaway with a flue Ive just moved into my property but cant turn the temp down on the water for the taps, there is a temp knob on the boiler but this seems to control the central heating, Ive noticed a knob on the hot water tank with number 1 - 6 does this control the water temp? Any help would be great!! sorry for the essay but Id thought I would give u as much info as possible!!
Also when I drain it off lots of black stuff comes out ( probably sludge not sure) I'm thinking about using Sentinel cleaner could anyone advise which one I should use (there are so many) and how to use it, & if it would do any good I heard of power flush but dont really want to do that.
Second prob if anyone can advise my boiler is a glow worm hideaway with a flue Ive just moved into my property but cant turn the temp down on the water for the taps, there is a temp knob on the boiler but this seems to control the central heating, Ive noticed a knob on the hot water tank with number 1 - 6 does this control the water temp? Any help would be great!! sorry for the essay but Id thought I would give u as much info as possible!!
