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B
Brightonguy
B
Brightonguy
Maybe you should approach the Buildings regs dept who say they can be fitted.
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The table does not say anything although it might suggest something so what did the table suggest?
Did you consult this table before or after your suggestion regards using 28mm headers?
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Brightonguy
Read back on thread and understand it before typing.
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Getting tired of your nonsense , you avoid answering any questions put to you so what is the point?, can you not see the forum is laughing at you?
If you have to disrespect the average heating engineer then at least tell us something we dont already know , you are a googler and a terrible one at that.
We have a resident googler in the CC so it does get a little tiresome.
If you have to disrespect the average heating engineer then at least tell us something we dont already know , you are a googler and a terrible one at that.
We have a resident googler in the CC so it does get a little tiresome.
B
Brightonguy
The only nonsense is from you. You have contributed sweet nothing to then thread.
He needs educating, hence he keeps asking.
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When I feel it is worth it I will contribute something , until you give me some answers then you have no chance , why the hell would I 'fuel' a no nothing troll?
You say that you are referencing a table , what exactly is this table explaining? , do not undermine the experience/knowledge that some guys on this forum have , if you were to present to me a specification based solely on your limited knowledge I would laugh in your face , you are a fool.
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That you SAW? , please.
No reason whatsoever why primary flow/return can't be of a different length.
B
Brightonguy
The only thing you have contributed is an attitude. If you knew something you would contribute in a positive way.
B
Brightonguy
That you SAW? , please.
No reason whatsoever why primary flow/return can't be of a different length.
Nonsense !!! With two headers and one boiler the Flow and Returns from each boiler should be ideally the same length as one header may grab more flow than the other. Otherwise it is a matter of putting in a balancing valve on each header, which adds complexity. Now you know. All child's play. Keep your attitude your yourself. Or keep reading as you will learn something.
Why the hell would you want two headers with one boiler.
Not everything you find on uTube is good, in fact most is rubbish
B
Brightonguy
Mr DoItAll, here is how two boilers should be connected to a Low Loss Header and how the CH loops taken off. Like you I am not impressed with many of the pictures shown on this thread of two boilers and multiple CH zones.
The reason TWO header were mentioned was in response to the plumber with the attitude problem. Most domestic installations are designed by rule of thumb. He was prattling about velocity, etc. In a two zone system in a normal domestic house two headers made from 28mm pipe, with the F & R from each CH zone run into it, would do it and no need to do major calcs.
In my situation, I haven't calculated yet, but I am confident the concept of one 28mm header of a decent length with both CH zones coming off it, would do the job, using the combi with a weather compensator (it comes with it) to ensure condensing and low gas bills. If there was no weather compensation, then a pipe stat with a probe stem in the return side of the header set to below the condensing dew point would also ensure boiler condensing.
The reason TWO header were mentioned was in response to the plumber with the attitude problem. Most domestic installations are designed by rule of thumb. He was prattling about velocity, etc. In a two zone system in a normal domestic house two headers made from 28mm pipe, with the F & R from each CH zone run into it, would do it and no need to do major calcs.
In my situation, I haven't calculated yet, but I am confident the concept of one 28mm header of a decent length with both CH zones coming off it, would do the job, using the combi with a weather compensator (it comes with it) to ensure condensing and low gas bills. If there was no weather compensation, then a pipe stat with a probe stem in the return side of the header set to below the condensing dew point would also ensure boiler condensing.
Most 2 up 2 down wouldn't need or have a header let alone two headers and one boiler.
The plumber with the attitude thats prattling on about velocity and flow rates etc is 100% on the ball and is very important when designing any large system. Of course you don't know what I did or they do for a living, but we are talking top end of the market.
Thank for the header drawing, after 50 years in the trade scratching around that would have come in handy
The plumber with the attitude thats prattling on about velocity and flow rates etc is 100% on the ball and is very important when designing any large system. Of course you don't know what I did or they do for a living, but we are talking top end of the market.
Thank for the header drawing, after 50 years in the trade scratching around that would have come in handy
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