worcester greenstar 37cdi combi NG

Discussion in 'Plumbing and Central Heating' started by greenc, 1 Jan 2011.

  1. greenc

    greenc

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    Hi, Am i correct in saying the heat output to the central heating can be adjusted on these boilers to lets say 20KW. And does this have any affect to the DHW output (37KW)
     
  2. Agile

    Agile

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    This can be done and should have been set by the installer when he commissioned the boiler.

    Thats if he was a proper gas registered installer and not some cheap cowboy.

    Tony
     
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  4. greenc

    greenc

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    Thanks for your reply although all I was looking for was some advice, as I was soon was wanting to have a new boiler fitted (not by a cowboy) and like to do my own research first. I was wanting to stick with Worcester as having used there products in the past I have always found them a very reliable product. The 37KW cdi appealed to me because of its higher flow rate for the domestic hot water, although the heating output would be way overboard. I know some boilers are range rated and after looking at the boilers specification manual, freely available on the Worcester website, I just wanted confimaton I was reading it correctly and the boiler could be range rated anywhere between 9-30 KW. While I'm on the subject could somebody also tell me what modulation means? I understand it means that the boiler will adjust its gas rate automatically depending on demand to keep its self in condensating mode. With this in mind does it matter what size boiler is fitted?
     
  5. Agile

    Agile

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    Modulating means adjusting the heat output to match the demand but NOT specifically to keep it condensing!

    Tony
     
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