In my previous post I described how I've messed with my current CH & HW system to make it fully pumped (S plan). I think I've messed up a perfectly good system but it is totally undo-able. What I need to know is from the following information would the old system have worked successfully so I had HW only when I needed it, CH only when I needed it, and or both. And would it have been fully pumped? The diagram: http://www.facebook.com/album.php?aid=9071&l=278af&id=544791297 description, information and questions are in the same album, just different piccie. (I couldn't think of how else I could do it sorry!). can anyone label pipes 1-3, where they are going/coming from... cheers, Paul. pebbles, Thanks a lot for your reply. You have confirmed what I thought last night. It isn't normal to have the valves on the return though is it? But I presume it's safe to do so because the previous owners must have been runnning this system for at least 17 years and maybe the owners before them. I think you're right about the build up of air as well. There does seem to be a lot of noise generated in a couple of rads and I'm always bleeding them (although this is with my current layout!). Can I fix this easily? I am right in thinking that not all boilers need a pump overrun though do they. My boiler is a Glow-worm Space Saver 50. I can't find any info on this at all. Again, it never had a pump overrun so I presume it's safe to run without. (I know I'm doing a lot of presuming!) Is it an easy/cheap job to scrap the header tank and pressurise the system? Is it a job for the pros or can I attempt it myself. (I have no problem paying for experts - I just enjoy a challenge!)
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