Any help with the following appreciated.
Yesterday a gas fire engineer removed a CH radiator & in doing so allowed a large amount of air into my open vented CH system. I've managed to bleed most of the air from the system, though noted that when I ran the cold water supply that the water from the storage tank was very hot. Why might this happen?
The CH pump is on the return side of the system & I've noted that during normal operation it appears to be drawing a small amount of air into the system (I can't find any air separator). Similarly, two automated bleed valves appear to be work normally most of the time only to occasionally 'suck' air into the system. Can they both be faulty? The boiler itself is of the condensing type which even on the warmest of days produces clouds of vapour. I've never had this type before so don't know how much moisture is the norm, though it appears excessive to me. Is it possible that the heat exchanger is cracked?
I'm thinking it might be easier to change the boiler & convert the system to a sealed, pressured system using the existing pipework (one plumber thought the pipe runs across the loft to the expansion tank were too long for the bore of pipe & suggested that the only effective remedy would be to replace the whole pipe runs from the boiler to the loft & immersion tanks). Might a change of boiler be a practicable solution &, if so, any thoughts as to what type of boiler I should look at?
btr
Yesterday a gas fire engineer removed a CH radiator & in doing so allowed a large amount of air into my open vented CH system. I've managed to bleed most of the air from the system, though noted that when I ran the cold water supply that the water from the storage tank was very hot. Why might this happen?
The CH pump is on the return side of the system & I've noted that during normal operation it appears to be drawing a small amount of air into the system (I can't find any air separator). Similarly, two automated bleed valves appear to be work normally most of the time only to occasionally 'suck' air into the system. Can they both be faulty? The boiler itself is of the condensing type which even on the warmest of days produces clouds of vapour. I've never had this type before so don't know how much moisture is the norm, though it appears excessive to me. Is it possible that the heat exchanger is cracked?
I'm thinking it might be easier to change the boiler & convert the system to a sealed, pressured system using the existing pipework (one plumber thought the pipe runs across the loft to the expansion tank were too long for the bore of pipe & suggested that the only effective remedy would be to replace the whole pipe runs from the boiler to the loft & immersion tanks). Might a change of boiler be a practicable solution &, if so, any thoughts as to what type of boiler I should look at?
btr