Column radiator microbore
- Thread starter tomsim
- Start date
Thanks I'll try again tomorrow. I think when I did turn all off bar that one the boiler got to temperature and cut off. I'll try again tomorrow
Can I just run through a few things. Because the flow is hot this sort of rules out an airlock? I will try balancing the system
Is a vented system
Can these rads trap air even though they bleed water out of the bleed valve
Usually not to the point whereby the rad won't flow, some of the tubular designer rads have the tube slightly above the top and bottom horizontals and they can sometimes catch a little air right at the top but that would usually dissipate over time.
The difficulty is with gravity fed open vent as it tends to lack the greater pressure of a sealed system and can take longer for the air to be mode out. If the top of the tubes on the rad is in line with the horizontals then there shouldn't be an issue.
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