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Discuss Boiler control with weather optimiser in the Central Heating Forum area at UKPlumbersForums.co.uk.

  1. ian.

    ian. New Member

    I have a Valliant Thermocompact which is getting on a bit now and I'm looking at getting an ecoTec plus 624 as a replacement.

    My current set up is a system boiler with unvented hot water and 'S' plan control via Hive and would like better control i.e independent temperture control of the CH & HW from the boiler with weather optimisation for the CH.

    I read that there is an Valliant eBus system which can interface into the 'S' Plan, accepting that the Hive will be redundant, I have couple of questions:

    1) My HW storage is a Santon Plus, for independant temperature control of the HW via eBus is their a tank mounted sensor?

    2) In your experiance, does weather optimisation make a real differance for a 4 bed detached?
     
  2. Chalked

    Chalked Plumber GSR

    It works quite well with the ebus. You will need a degree in physics to understand the instructions though.
    Don’t bother with hot water temperature control. For two reasons.
    1. Disconnecting the manufacturers thermostat will invalidate their guarantee.
    2. It does not need to control the temp, just the times.
     
  3. johnduffell

    johnduffell Member

    Weather compensation is mostly to make the boiler run in condensing mode as much as possible, the type of house is not relevant.
     
  4. Gasmk1

    Gasmk1 GSR

  5. ian.

    ian. New Member

    Thanks for the link, I’ll check it out
     
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