s plan

  1. N

    Greenstar system boiler with Easy Control on s-plan modulation capability

    My old system boiler (16yo) is setup in S-Plan configuration. I want to get a new Worcester system and Easy Control (finer control with modulation/condensing.) I understand DHW has to be heated to over 65deg but I would like my heating flow temperature to be much lower particularly in the...
  2. N

    Google Nest Installation Advice

    Hi All, Looking for some advice regarding the compatibility of a Google Nest to replace existing Drayton timer and stat. I know the Nest is compatible with my S Plan system generally but cannot see how I would wire the new stat into the T1 and T2 ports on the Heatlink (which is a 12v...
  3. 2

    S plan vented to S plan Unvented

    Good evening all, I’m a drainage engineer with a plumbing background. My property is an old 1930’s, has an indirect vented cyclinder, f+e in loft and also water tank storage in loft. Would like to replace the vented with an unvented. Same location as existing, really good mains pressure on 15mm...
  4. 2

    Changing Vented S plan to Unvented S Plan

    Good evening all, I’m a drainage engineer with a plumbing background. My property is an old 1930’s, has an indirect vented cyclinder, f+e in loft and also water tank storage in loft. Would like to replace the vented with an unvented. Same location as existing, really good mains pressure on 15mm...
  5. J

    S plan blowing fuses

    Hi I have run out of ideas so hope that someone here might have come across this problem before. Basically I have fitted a new valve on the heating side and now the system runs fine for about an hour and then blows the fuse in the spur. I cannot find any problem in the wiring. The valve base was...
  6. R

    Hive Wiring - S Plan Problems

    Hello, would be glad of some (simple, I think) help. I believe we have an S Plan system with 2 valves - one HW and one CH. Currently the thermostat is separate with a 3 core plus earth wire and the Lifesytle timer backplate looks like the attached picture - i.e. only the HW and CH 'on' wires...
  7. J

    Greenstar 24Ri boiler revving

    Hi all. My one year old installation has started to show some signs of issues with the central heating. Before describing the problem, my boiler (see title) was installed from new last year by a qualified plumber who provided a level of certification required to satisfy building regs signoff...
  8. J

    How to have towel rail on with either CH or DHW

    I've got a s-plan setup with 3 zones - DHW (tank), CH upstairs and CH downstairs. However the towel rail in the (upstairs) bathroom is currently plumbed into the DHW so dries my towels all year bit it's a bit cold in the winter in the bathroom. I'd like the towel rail to come on with the DHW or...
  9. M

    Connecting UFH to Combi Boiler

    I am currently connecting my UFH system to my combi boiler (Worcester Bosch 42CDI). I will T off from the existing radiator flow and put in a 2 port motorised zone valve on the rad flow, will I need a 2 port zone valve on the UFH circuit? I cant ever see a situation when my UFH will not be...
  10. K

    Vented and unvented s plan components

    Looking to upgrade with s type control pack to control hot water and rads separately and would like to know the difference between the available control packs for vented and un-vented. i understand the difference between vented and unvented system but what is the difference between the...
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