Recent content by Orroroo

  1. O

    How should I measure delta T at the boiler?

    Possibly - I was working full time up until 2017 when I retired so I was used to a cold house in the morning. The boiler before the Greenstar was a SIME which didn't condense & I think the plumber who installed it set it to maximum so it was warm by "brute force" & lots of gas. I got fed up...
  2. O

    2 pipe vs 1 pipe question

    Yes, I wondered if it would be OK just to put stop ends on the feed and flow pipes that I would have cut
  3. O

    2 pipe vs 1 pipe question

    I've been measuring and fiddling with the heating system and I have possibly had a lightbulb moment. I've turned the temperature on the boiler DOWN but i'm still managing to get sub 55c on the return pipe next to the boiler so I am assuming I am getting condensing. I've also managed to solve...
  4. O

    How should I measure delta T at the boiler?

    Oh ‘eck…..this is well above me I’m afraid
  5. O

    How should I measure delta T at the boiler?

    OK, thanks. I thought delta T was the difference between flow and return This is the nub I think. Outside temperature was 5c this morning and it took 4 hours to lift the temperature in the dining room from 17c to 21c. The dining room rad and upstairs rads are on a 1 pipe system whilst most of...
  6. O

    How should I measure delta T at the boiler?

    Worcester Hi Flow CDi 440 - installed in 2010, can’t spot anything in the manual but don’t want to fiddle with engineering menus particularly
  7. O

    "Balance Rad"

    Hmm, OK The plumber who sorted the system out back in 2001 put a small double rad in the newly created downstairs shower room without a TRV It’s about 6 foot from the boiler so its roasting in there most of the time but freezing when the boiler goes off on the thermostat. I was wondering if it...
  8. O

    How should I measure delta T at the boiler?

    How can I see that I am actually benefitting from condensing at the boiler (I've got a relatively cheap measuring unit with two k clamp thermocouples) As an example measurement I can see 72c on the boiler display but only 63c on the flow pipe just above it and then 56c on the return pipe. Is...
  9. O

    "Balance Rad"

    Thanks, that's great. More questions to follow on different subjects though i'm afraid.
  10. O

    "Balance Rad"

    Sorry about this but I cannot seem to find an answer anywhere - what is meant by the term "a balance rad"? which I have seen used bur not explained. It seems to be a radiator on the system with no TRV on it but for what purpose? Secondly, should you try to include it in balancing or should the...
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