Hi, I had some work done to our house recently, we added some lovely new cast iron radiators, we have eighteen radiators in total now.
The work included a loft conversion with two radiators (one for the bedroom, one for the tiny bathroom). We keep losing heat to these two loft radiators and one particular one on the first floor. We switched from a combi system to an Ideal Logic Max System S30 and a ProLite Air 300litre hot water cylinder.
The remedy seems easy enough, turn off downstairs radiators and force hot water through to clear the airlocks (or gaslocks) or whatever they are. Air/gas is forced into the radiators, whence it can be bled off at a later date. Most of the water has been clear but some has been black/dirty looking.
My problem is that I have had to do this a good few times, it feels like there is a problem beyond the air which would have been introduced from the building works.
The downstairs radiators seem fine, however when I turn them off and then go round turning on the upstairs ones, most of the upstairs ones exhibit a funny gurgling noise (even the ones which had been working). So I guess that is the air moving round.
I tried one time to catch the air/gas bled off in an upturned glass and hold a match to it; nothing happened. But then I'm not very practical so I may have made a mess of that.
Based on googling / looking at these forums, I'm thinking we might need some more inhibitor, I've seen deaerator valves and also magnaclean valves. Also a friend of mine suggested waiting until the radiators are absolutely stone cold to make sure I'm not inadvertently adding more air when I'm bleeding them.
I don't think I'm losing pressure ordinarily so hopefully there is no leak.
Any ideas / advice from anyone here? I would be very grateful
Thanks
The work included a loft conversion with two radiators (one for the bedroom, one for the tiny bathroom). We keep losing heat to these two loft radiators and one particular one on the first floor. We switched from a combi system to an Ideal Logic Max System S30 and a ProLite Air 300litre hot water cylinder.
The remedy seems easy enough, turn off downstairs radiators and force hot water through to clear the airlocks (or gaslocks) or whatever they are. Air/gas is forced into the radiators, whence it can be bled off at a later date. Most of the water has been clear but some has been black/dirty looking.
My problem is that I have had to do this a good few times, it feels like there is a problem beyond the air which would have been introduced from the building works.
The downstairs radiators seem fine, however when I turn them off and then go round turning on the upstairs ones, most of the upstairs ones exhibit a funny gurgling noise (even the ones which had been working). So I guess that is the air moving round.
I tried one time to catch the air/gas bled off in an upturned glass and hold a match to it; nothing happened. But then I'm not very practical so I may have made a mess of that.
Based on googling / looking at these forums, I'm thinking we might need some more inhibitor, I've seen deaerator valves and also magnaclean valves. Also a friend of mine suggested waiting until the radiators are absolutely stone cold to make sure I'm not inadvertently adding more air when I'm bleeding them.
I don't think I'm losing pressure ordinarily so hopefully there is no leak.
Any ideas / advice from anyone here? I would be very grateful
Thanks