Thanks for the reply.
I will re-pipe the cold feed and hopefully end up with a better system. As you say, control is limited compared to modern systems but we are aware of that.
Hello,
I am after a bit advice regarding my parents heating system please, notably the (possibly) incorrect teeing in of the cold feed.
As a bit of history originally they had a parkray with a primatic cylinder which about 30 years ago was changed to a Baxi Bermuda back boiler, indirect...