System is run consistently at 21.5 to 22 degrees C...
Have to say that I have found similar behaviour on other makes of heads, it is just the Bulldog ones that were fitted to my current Central Heating system.
Does anyone on here know of a metal bodied connector, without the plastic internal...
Hi there,
I have a problem with the above heads, after a year or so the plastic body under the chrome ring which fixes them to the valve fractures and the heads fall off. I have checked the valves and they are functioning correctly.
Is it possible to buy replacement heads and more importantly...