Hi Guys, my first post so go gentle please!
My heating system is the kind with a header tank in the loft. There are 4 double radiators downstairs and 3 single radiators upstairs that run off the pump plus one in the bathroom which runs when the hot water is being heated and is gravity fed.
In case it is relevant, when the CH is on the water is always being heated, you cannot switch the water off while the CH is on, but you can have the hot water on without the CH.
So, earlier this year we had to replace the old radiator in the bathroom - it was taken off for re-tiling and got dropped - damaging the threads when the valves attach. The new radiator is slightly bigger (taller) by about 4 inches. I fitted it myself, all went very smoothly no problems and a job I have done a few times in the past - I'm pretty good with all things DIY.
The radiator worked perfectly well in the summer! Much hotter than its aged predecessor. However, we had occasion to switch the CH on the other day and found that when that was on, the new rad in the bathroom lost most of it's heat and took a long time to initially heat up. Consequently the hot water also took a little longer to heat and doesn't get as hot as it used to.
The valves were both replaced and are both open (I was told that was best on this type of set-up) but nevertheless a big difference in the heat out put. This morning with the heating on I recorded the temperature on this rad at 43 degrees. I then switched the heating on and recorded the temp an hour later, as 36 deg.
Sorry for the long post but any help would be appreciated
My heating system is the kind with a header tank in the loft. There are 4 double radiators downstairs and 3 single radiators upstairs that run off the pump plus one in the bathroom which runs when the hot water is being heated and is gravity fed.
In case it is relevant, when the CH is on the water is always being heated, you cannot switch the water off while the CH is on, but you can have the hot water on without the CH.
So, earlier this year we had to replace the old radiator in the bathroom - it was taken off for re-tiling and got dropped - damaging the threads when the valves attach. The new radiator is slightly bigger (taller) by about 4 inches. I fitted it myself, all went very smoothly no problems and a job I have done a few times in the past - I'm pretty good with all things DIY.
The radiator worked perfectly well in the summer! Much hotter than its aged predecessor. However, we had occasion to switch the CH on the other day and found that when that was on, the new rad in the bathroom lost most of it's heat and took a long time to initially heat up. Consequently the hot water also took a little longer to heat and doesn't get as hot as it used to.
The valves were both replaced and are both open (I was told that was best on this type of set-up) but nevertheless a big difference in the heat out put. This morning with the heating on I recorded the temperature on this rad at 43 degrees. I then switched the heating on and recorded the temp an hour later, as 36 deg.
Sorry for the long post but any help would be appreciated
this seems a bit harsh when it only went like this after replacing the bathroom radiator & valves
