On Jun 22, 1:23 pm, ":Jerry:" wrote:
"Thomarse" wrote in message
ups.com...
On Jun 22, 9:35 am, ":Jerry:" wrote:
"Thomarse" wrote in message
snip
At what point did I say I drained all the water from my boiler?
"I drained my heating system last night so that I could move a
radiator
from one wall to another and to add some thermostatic valves to
some
rads in the house. [cont']..."
Tell me, just how long before the water, that would have remained
in
the boilers water jacket, started to turn to steam with no
circulation? As I said, stop digging Thom Arse...- Hide quoted
text -
- Show quoted text -
Im not digging... Im asking a questin as I dont understand, which is
what the definition of a discussion forum is!
Excuse em for being "thick".. leaving aside my qualifications and
professional reputation... I know now that I cant have the hot water
on with teh rads drained,, but in my thick little mind I still dont
understand why.. Maybe if you explained it to me in plain english
and
used their knowledge to help me understand that my ignornace would
be
cured!
So you have obviously not bothered looking at the replies that were
sent before my first reply, especially the one with the following URL;http://content.honeywell.com/uk/homes/systems.htm)
If you had you will know the answer to the above...
My explanation or thought process is this... I drained teh water
drom
my radiators.. using the bleed valve on the one downstairs in my
kitchen.. As far as I was concerned the heating water was a clsoed
system, being pumped around, and the reheated in the boiler as the
Coil (heat exchenge, whatever) passed through the hot water in the
boiler... the water from the hot water tap isnt the same as the rad
water as rad water contains fernox?...
Indeed, but the hot water that heats the rads is the same water that
is heated DIRECTLY by the boiler, this same water is also used to heat
the DHW vie the coiled heat exchange tube that is immersed in the
water contained with the DHW tank that then flows from the hot tap. In
it's simplest form;http://content.honeywell.com/uk/homes/Schemes/c.jpg
So.. when I drained my rads... in my feeble little mind... water
woudl
still be present in the boiler.. which would then heat as usual (on
hot water only) and rise to the tank.. where I coudl then turn on my
tap and use it... WHY (if you can spare the time to explain to me)
should the pump be running when I only have hot water on... and WHY
then if teh pum has to run,, can I get ho****er by using my imersion
heater...
Apart from the fact that you have drained the water out of the pipes
that flow through the boiler, a pump is needed to create a flow,
whilst some systems can work on the symphonic principle they are now
very rarely found.- Hide quoted text -
- Show quoted text -
I did look at the diagrams on the Honeywell site, but I cuoldnt really
make too much sense of them, having not much background knowledge on
the subject...
The penny has dropped now... so i congratulate you on explaining it in
a senssible, easy to understand manner!... So what made me a Troll was
basically that I had it round the wrong way., I thought that the water
in the boiler was the hot water that came out of the tap.. and the
water in the coil heat exchange was the radiator water.... if you look
at it that way round maybe you can see my logic!
I see now how it works and alas have learnt something!.... Troll or
not, a simple explanation in plain english is all it needs!
Tom