Usual radiator problems i'm afraid but here goes.
The house i am working at has 20 radiators over 2 floors. Some of the downstairs rads are very hot, others are stone cold and the number like this has increased over the last few months. Upstairs, i replaced a rad with a heated towel rail and despite being full of water (i've bled it) the hot water only circulates up to the valves and not into the rad itself. In the same room is a large rad which never warms up but otherwise the rads upstairs seem to work alright.
I flushed one of the rads in the kitchen which remains cold and got some sludge out, but when it was refitted there was no improvement. There is another rad in the kitchen which also remains cold and was flushed by a plumber 6 months ago. It worked for 3 days then stopped again. The rads in the hall 4m away are hot as hell!
A family member who lives in a seperate part of the house, but shares the heating system, had her 4 rads replaced a year ago and does not have any problems.
I have put 2 lots of fernox flush through and this seems to have done very little good. We have flushed the problem rads and this has not done any good.
Should i hire a power flush, leave it to an expert or not bother as this is not the problem?
Boiler feeds 20 radiators using a single pump - is this maybe a contributory problem? Does it need a second pump?
The system is a mix of 15mm copper and predominantly 10mm plastic piping - is this an issue?
The rads are 15-20 years old - are they all just slowly packing up?
Would really appreciate some help and advise.
The house i am working at has 20 radiators over 2 floors. Some of the downstairs rads are very hot, others are stone cold and the number like this has increased over the last few months. Upstairs, i replaced a rad with a heated towel rail and despite being full of water (i've bled it) the hot water only circulates up to the valves and not into the rad itself. In the same room is a large rad which never warms up but otherwise the rads upstairs seem to work alright.
I flushed one of the rads in the kitchen which remains cold and got some sludge out, but when it was refitted there was no improvement. There is another rad in the kitchen which also remains cold and was flushed by a plumber 6 months ago. It worked for 3 days then stopped again. The rads in the hall 4m away are hot as hell!
A family member who lives in a seperate part of the house, but shares the heating system, had her 4 rads replaced a year ago and does not have any problems.
I have put 2 lots of fernox flush through and this seems to have done very little good. We have flushed the problem rads and this has not done any good.
Should i hire a power flush, leave it to an expert or not bother as this is not the problem?
Boiler feeds 20 radiators using a single pump - is this maybe a contributory problem? Does it need a second pump?
The system is a mix of 15mm copper and predominantly 10mm plastic piping - is this an issue?
The rads are 15-20 years old - are they all just slowly packing up?
Would really appreciate some help and advise.
