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Thread: Dragon Boiler Antifreeze

  1. #1
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    Dragon Boiler Antifreeze

    Hi

    I am in the process of making some changes to my dragon boiler system. Fitting a 6000 l buffer tank to hopefully improve the useability of it.

    We will have to add anti freeze when we refill the system. Can anyone recommend a supplier and the concentration that we should add (anti freeze to water).

    I was considering getting a 200 litre drum of engine antifreeze and just using this.

    Whole system is about 7000 litres.


    Thanks


    Kenny

  2. #2
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    Re: Dragon Boiler Antifreeze

    Hi Kenny sounds good idea but are you rhi accredited ?
    As any alterations think you got to go back to Ofgem to get permissions etc.
    Also I know heat meters etc. All work differently with glycol etc in system so take care there.

  3. #3
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    Re: Dragon Boiler Antifreeze

    Why antifreeze? Surely the system will always be at least Luke warm at its coldest?

  4. #4
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    Re: Dragon Boiler Antifreeze

    Quote Originally Posted by RGT View Post
    Hi Kenny sounds good idea but are you rhi accredited ?
    As any alterations think you got to go back to Ofgem to get permissions etc.
    Also I know heat meters etc. All work differently with glycol etc in system so take care there.

    Original installation is pre- RHI so I get no payments. Only benefit of that is I can do what I like.

  5. #5
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    Re: Dragon Boiler Antifreeze

    Quote Originally Posted by Chippy View Post
    Why antifreeze? Surely the system will always be at least Luke warm at its coldest?
    Pipes can be at risk. I know boiler and tank are unlikely to freeze however there are some dead areas with poor circulation (heat leaks etc). Anti freeze also contains rust inhibitor.

  6. #6
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    Re: Dragon Boiler Antifreeze

    Quote Originally Posted by kennyo View Post
    Original installation is pre- RHI so I get no payments. Only benefit of that is I can do what I like.
    Your right there ken but waste of money as chippy said if luke warm at coldest ever in winter if let die down so well above freezing point and not needed in summer anyhow .
    Inhibitor now may be a different idea ? But for these systems would be very expensive even at 20.1 ratio ???

  7. #7
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    Re: Dragon Boiler Antifreeze

    Will try it without to start. At least with the open system I can tip it in at anytime.

  8. #8
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    Re: Dragon Boiler Antifreeze

    I think that the inhibitors in car anti freeze will be very different from the type used in boilers.
    I used stuff from these people might be worth given them call as they were helpful.
    http://www.hydratech.co.uk

  9. #9
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    Re: Dragon Boiler Antifreeze

    Quote Originally Posted by hillsider69 View Post
    I think that the inhibitors in car anti freeze will be very different from the type used in boilers.
    I used stuff from these people might be worth given them call as they were helpful.
    http://www.hydratech.co.uk
    Thanks

  10. #10
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    Re: Dragon Boiler Antifreeze

    This is what we use ...
    http://www.fernox.com/products/water...ector+alphi-11
    but as a safety backup we usually wire a froststat into the circ pump as moving water is far less likely to freeze
    I presume you know about these but if not one of these is essential for heating the buffer so the boiler doesn't suffer
    http://www.termoventiler.eu/index.ph..._21-60&lang=en

  11. #11
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    Re: Dragon Boiler Antifreeze

    Enersave HVAC Enhibitor - 10 Litres treats 2000 Litres of water.

    Per reply when I queried what product, and how much of, the installer was going to use to treat between 4000 and 5000 litres

    marcus

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    Re: Dragon Boiler Antifreeze

    How expensive is it -any idea ?

  13. #13
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    Re: Dragon Boiler Antifreeze

    No idea, I queried simply because it was listed as part of the "all in" quotation I recieved, and I seriously wondered IF they really going to treat that quantity of water.
    see link
    http://www.enersavehvac.com/
    must be a UK distributor, though I have not looked for one yet
    cheers
    M

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