Tell me, regarding updating boilers, why does a Worcs boiler require a 22mm gas pipe instead of the existing 15mm supply that fed a similar output'n, is it cos it burns loads more gas? It's a common hoar garden system btw, not one of them new-fangled combo boilers that take 3hrs to fill a sink. Over to you André, there's nowt you don't knerr.
Because the modern boiler is 90% efficient so it needs to have full working pressure of 20mb minimum to provide the heat input for a higher output than the old boiler of similar input.
If you're asking me, I have absolutely not much of an idea. I do have lots of friends though so I'll ask them both later.
IN Word for Windows 2007 at least go to the menu and click on the INSERT tab then look for SYMBOLS tab and click on it a few wymbols come up click on one and it is inserted in what you are typing click at the bottom of that little table whee it says soemthing like more symbols and you get loads of symbols you can use in the same way (and it is easir that remembering ALT1096 or whatever
I also believe the modern condensing boilers are not able to handle a drop in gas working pressure like the older ones did, they have a drastically reduced performance if subjected to the same drop as the old models.
Why does a modern boiler require a 22mm pipe when a 15mm was good enough for the old equivalent? It just does. Get over it.
Sorry DA but there are some of us who like to know why this, why that. It's called an enquiring mind and I think it is a very good thing to have.
I always did take people at face value, and believe them until proven wrong. So I don't think you'll change me that quick.
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