Filling the system
- Thread starter surfrider
- Start date
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Yes - its a 35 kW boiler so I shouldn't be having problems It's running 18 double convectors rads but should be able to cope.
I just closed down 16 rads and lets see if it can push hot water to the two that are cold.
I just closed down 16 rads and lets see if it can push hot water to the two that are cold.
Nothing happening, still air trapped.
Both rads are downstairs and are fed with 10mm coming off 22mm on the landing.
Both rads are full of water and there's no air trapped within the rads.
Can't understand whats causing the problem.
Both rads are downstairs and are fed with 10mm coming off 22mm on the landing.
Both rads are full of water and there's no air trapped within the rads.
Can't understand whats causing the problem.
can you back fill system through drain off that you should have on each rad?
I had one system where it was a similar problem and apparently there was a bit of muck/sludge blocking 10mm pipe and constant pressure of flow held it in place. Back filling removed obstacle.
Bit drastic but possibly worth a shot
Another basic thought, you have connected to flow and return and not both on same pipe? Don't want to insult your intelligence but trying to find a simple cause
I had one system where it was a similar problem and apparently there was a bit of muck/sludge blocking 10mm pipe and constant pressure of flow held it in place. Back filling removed obstacle.
Bit drastic but possibly worth a shot
Another basic thought, you have connected to flow and return and not both on same pipe? Don't want to insult your intelligence but trying to find a simple cause
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Dave,
Latest news - I might be getting somewhere, the full force of the boiler is now pushing at the two rads and I may be getting slight warmth in the feed pipes.
The heat is not spreading across the rads yet, but at least this is an improvement.
I will leave things the way they are for now and see if it will sort it's self out.
It's been a long weekend trying to sort this.
Latest news - I might be getting somewhere, the full force of the boiler is now pushing at the two rads and I may be getting slight warmth in the feed pipes.
The heat is not spreading across the rads yet, but at least this is an improvement.
I will leave things the way they are for now and see if it will sort it's self out.
It's been a long weekend trying to sort this.
Dave,
There's definite movement now, having taken your advice to run 1 rad only.
I can actual hear the water coming down from the 22mm above.
But the main thing is that the water is moving.
Feels almost as good as a lotto win !!!!
Well perhaps £10
There's definite movement now, having taken your advice to run 1 rad only.
I can actual hear the water coming down from the 22mm above.
But the main thing is that the water is moving.
Feels almost as good as a lotto win !!!!
Well perhaps £10
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