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  1. Replies
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    Certainly sounds like a T&P discharge. It could...

    Certainly sounds like a T&P discharge. It could be a faulty valve or it could be a faulty pressure vessel or it could be a fault on the stat controlling the heater for the tank. The T&P is designed...
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    Could it be related to the response time of the...

    Could it be related to the response time of the mixer valve in the shower combined with demand for hot water from units closer to the source of the hot water.

    I'm imagining there is a secondary...
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    4,812

    you're comparing apples with oranges. If the...

    you're comparing apples with oranges. If the system was working fine before the plumber fiddled with it, get him back to put it right at his expense, why incur additional expense and wear and tear on...
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    I don't really follow your train of thought on...

    I don't really follow your train of thought on this boiler but I can tell you it is not efficient to cycle your boiler on off on off.
  5. A flue gas analyser with the oil flow rates set...

    A flue gas analyser with the oil flow rates set should give you some idea of the efficiency. A modern condensing oil boiler will give you 95-7% efficiency.
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    I'd just use a pencil and paper to draw it and...

    I'd just use a pencil and paper to draw it and scan it up.

    Why don't you buy another solar cylinder, rip out the two existing cylinders and pipe the solar to both cylinders either split or two...
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    A drawing schematic would be much more useful. ...

    A drawing schematic would be much more useful.

    I can't understand if you are keeping the two 50 gallon elelctric units and preheating the water to them from the new 80 gallon tank or just tying in...
  8. Replies
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    Agree 100%. It's going to lock out which is a...

    Agree 100%.

    It's going to lock out which is a fault, it's not going to over heat. They should start with the basics, fuel line leaks, air ingress, filters, check fire valves if fitted. Check...
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    You ought to get quotes for condensing boilers...

    You ought to get quotes for condensing boilers the efficiency savings will pay you back in the long run.
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    Oil tank testing- can you help me?

    Reading through the many sites I have come across from using this site I noticed you do something beyond what we do here for oil tanks and testing them.
    I'm rather interested in the means to do...
  11. Replies
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    3,131

    Ahh with oil there isn't a condensing unit but...

    Ahh with oil there isn't a condensing unit but they do state the following

    "High efficiency cast iron sectional boilers, with Thermostream technology that can be used with either an oil or gas...
  12. Replies
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    Is this going to be a condensing unit as it would...

    Is this going to be a condensing unit as it would seem it's the high efficiency but possibly not condensing and is it oil or gas?

    What are Buderus recommending themselves?

    I can't comment on...
  13. Replies
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    yup that's cold :) Well I guess you have...

    yup that's cold :)
    Well I guess you have answered you're own question then, worry about it if or when it happens, because even if you check and find a problem getting everyone to agree to do...
  14. Replies
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    3,529

    How much will the heating units be running at...

    How much will the heating units be running at night? generally here but I don't know how cold it gets for you the heating isn't on over night or if on weather compensated it is on set back and then...
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    no I am not saying that nor have I . I don't know...

    no I am not saying that nor have I . I don't know what you purchase your system for and or your mark up for profit and labour content. All I have told you is the cost of the items as they are here, I...
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    I think you're misrepresenting or interpreting...

    I think you're misrepresenting or interpreting what I am saying. and to clarify some of your points I have posed the question to the regs here so some things i'll get back to you on, and if i'm right...
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    Well the talk here is again due to regulations...

    Well the talk here is again due to regulations that probably are meaningless in the US. But to explain, the water reaching the sewerage treatment plant is regulated to be a certain ph and if the ph...
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    Well a closed loop is not then directly connected...

    Well a closed loop is not then directly connected to the water suppliers water main.

    Yes the tank is, but as I have mentioned prior it is normal to keep tanks (cylinders here) at 60c here minimum...
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    hi, you wont have a hot water tank you would...

    hi,

    you wont have a hot water tank you would have a hot water cylinder this is normally located in an airing cupboard. The cylinder could be pressurised or it could open vented. In the Loft space...
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    semantics, xenophobia and "pot and black" spring...

    semantics, xenophobia and "pot and black" spring to mind hardly helpful for the reader. end of :)
  21. Replies
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    Legionellae can still develop, it's a bacteria...

    Legionellae can still develop, it's a bacteria and given the right conditions could rapidly develop. The Regs here will not allow any contamination or possible contamination to backflow into the cold...
  22. I only have a UK guide. ...

    I only have a UK guide.

    http://www.ukcopperboard.co.uk/literature/pdfs/Installation-Tips/copper-oil-pipelines.pdf

    page 13
    ...
  23. Yes that would be correct. You also want to...

    Yes that would be correct.

    You also want to be aware of:
    http://no.varme.danfoss.com/PCMPDF/DKBGPG010A702.pdf

    How various resistances in the suction line affect the
    pump
    If fuel oil is...
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    I am guessing he is referring to the storage of...

    I am guessing he is referring to the storage of that water thereafter where at the temperatures listed legionellae can occur. And also it could occur in the collector itself during periods when it...
  25. I agree a check valve should help you. I would...

    I agree a check valve should help you. I would suggest however that you place it in the oil line close to the tank. The reason for this is that it keeps the oil pump and feed oil line to the pump...
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