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Buffer/Thermal Stores?????

Discussion in 'Plumbing and Central Heating' started by bobby62, 2 Nov 2012.

  1. bobby62

    bobby62

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    Could someone please explain whether installing a buffer/thermal store after the boiler would provide a higher heat output.

    For instance, if I need 45kW (peak load), would I get away with installing a 25-30kW boiler?

    Thanks
     
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  3. dcawkwell

    dcawkwell

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    Yes it can supply a peak burst of power and therefore allow
    a smaller boiler to be required overall as the boiler
    can create a store of heat ready to go at off peak times.

    What needs such a large amount of heat?

    But then a ravenheat outputs 42kw at less than the cost of a thermal store. You could buy two! 84kw. :)
     
  4. bobby62

    bobby62

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    An 8000sq.ft existing house! What is the rule of thumb for the uplift a thermal store can provide i.e. % of additional kW?
     
  5. dcawkwell

    dcawkwell

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    None. A thermal store won't provide any uplift. It just evens out
    the peak demands. If you needed to heat the place continuously
    a thermal store would provide no benefit as it only puts out what you put in.

    I would stick in a nice big boiler like the 42kw ravenheat
    and see if it heats the place. If not add a second to work in cascade.
    Much cheaper and certain than a thermal store.
     
  6. Agile

    Agile

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    How many kW of power do you think that needs?
     
  7. Biggles..

    Biggles..

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    42kw ravenheat------- Jesus, that'll be crap. Best fit a decent boiler next to it for when it breaks which should be fairly often.
     
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