I think I know the answer, but before I make any changes I'd like to run it past the learned body of this group.
On the wood burner I have a dump radiator on the hot water circuit. It does not get hot. I suspect that I have got the plumbing for the radiator in the wrong place!
The pipes for the hot water circuit come through the wall of the chimney and go into a 28mm/28mm/15mm T fitting with the 28mm horizontal and upwards (to the indirect cylinder) and the 15mm downwards (to the radiator).
I think that this is the problem. To improve the flow in the (dump) radiator should I take take the feed and return above the pipes that feed into the boiler, not below?
In other words should I replace the 28/28/15 Tee with a 28mm right angle bend and put a 28/15/28 tee higher up the feed and return pipes?
Cheers
Peter