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I've been looking under the floor in our dining room due to insulating under the floorboards and wanting to install a couple of new rads. The one in there never worked that well, and I think I know why.
There are two 22mm pipes that seem to be coming out of the boiler, I presume send and return, they both at different places turn 90 deg and head towards the front of the house where the heating works well.
Where they feed the rad in the dining room, however, both ends of the radiator are connected to the same pipe. Am I right in thinking that this would never work that well, and that this is why the rad connected in this way has never given out much heat? I even replaced it a couple of years ago (without going underneath the floor) and just assumed that it was plumbed in correctly.
There are abandoned other "legs" of 15mm pipe that look like they were connected to old radiators, but these are also both taken from the same pipe.
At least with what is there, I can use one of the unused 15mm pipes from each of the different 22mm send and return pipes to connect the new rads to.
I was wondering if it would be possible to connect quickfit (with copper to new rads where showing) right up to where I am going to join to existing copper, then quickly join the new an existing together rather than draining the system. Is this a daft idea? I don't mind getting a bit wet if it will save a couple of hours, but this may be very bad practice....
PS it does seem to be a feed/return system rather than a single pipe loop as the water enters and leaves the rads at the bottom.
There are two 22mm pipes that seem to be coming out of the boiler, I presume send and return, they both at different places turn 90 deg and head towards the front of the house where the heating works well.
Where they feed the rad in the dining room, however, both ends of the radiator are connected to the same pipe. Am I right in thinking that this would never work that well, and that this is why the rad connected in this way has never given out much heat? I even replaced it a couple of years ago (without going underneath the floor) and just assumed that it was plumbed in correctly.
There are abandoned other "legs" of 15mm pipe that look like they were connected to old radiators, but these are also both taken from the same pipe.
At least with what is there, I can use one of the unused 15mm pipes from each of the different 22mm send and return pipes to connect the new rads to.
I was wondering if it would be possible to connect quickfit (with copper to new rads where showing) right up to where I am going to join to existing copper, then quickly join the new an existing together rather than draining the system. Is this a daft idea? I don't mind getting a bit wet if it will save a couple of hours, but this may be very bad practice....
PS it does seem to be a feed/return system rather than a single pipe loop as the water enters and leaves the rads at the bottom.
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