Hi,
I hope you can help with the following
I have an open vented central heating system. It all seems to work well, except for a water noise, like slushing, near/in the pump.
The system does not pump over, nor does there appear to be any air in any of the radiators etc.
The noise is sometimes quite loud and the cold feed (not the vent) from the F&E tank does get quite hot. This must sometimes heat the water in the F&E tank, as there is a lot of condensation on the cover when I check it. I should say the water in the feed pipe, although hot, is not very hot. At it's hottest I can probably keep my hand on the pipe for about 5 seconds, so it's not scalding.
Once the boiler switches off when the water is up to temperature the feed pipe cools down in ~5 minutes.
It's an H system:
Bottom right - flow from boiler.
Top right - vent.
Top left - cold feed.
Bottom left - flow to pump.
I have replaced the H, and the issue has eased, but it's still there. If I had to hazard a guess I'd say there is not enough pressure from the cold feed, but, in reality, I have no idea what the problem is.
Any ideas much appreciated.
Regards,
Nick.
I hope you can help with the following
I have an open vented central heating system. It all seems to work well, except for a water noise, like slushing, near/in the pump.
The system does not pump over, nor does there appear to be any air in any of the radiators etc.
The noise is sometimes quite loud and the cold feed (not the vent) from the F&E tank does get quite hot. This must sometimes heat the water in the F&E tank, as there is a lot of condensation on the cover when I check it. I should say the water in the feed pipe, although hot, is not very hot. At it's hottest I can probably keep my hand on the pipe for about 5 seconds, so it's not scalding.
Once the boiler switches off when the water is up to temperature the feed pipe cools down in ~5 minutes.
It's an H system:
Bottom right - flow from boiler.
Top right - vent.
Top left - cold feed.
Bottom left - flow to pump.
I have replaced the H, and the issue has eased, but it's still there. If I had to hazard a guess I'd say there is not enough pressure from the cold feed, but, in reality, I have no idea what the problem is.
Any ideas much appreciated.
Regards,
Nick.
