Open vented heating system


Postby Jamest » Sat Feb 02, 2008 11:28 am

Hi All,

Could anyone tell me if i need to drain an open vented system to replace a radiator valve?
I tried freezing the pipes but with no luck as the amount of pipe i'm able to get to coming from the floor is not enough. :cry:

Many thanks in advance

James
Jamest
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Postby dcc » Sun Feb 03, 2008 4:31 pm

aye youl have too drain down the system to replace it.

when you tried freezing it, was the pump, boiler ect off? because its impossible to freeze water when its moving
dcc
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Postby Jamest » Sun Feb 03, 2008 4:58 pm

Hi,

Thanks for your reply i was afraid of that.
Yeah all was turned off no heat and no pump on, the problem with it is the pipework only shows by about a inc and half so not enogh to freeze.

Many thanks

James
Jamest
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Joined: Sat Feb 02, 2008 11:24 am


Postby muttley » Sun Feb 03, 2008 6:47 pm

[quote="Jamest"]Hi All,

Could anyone tell me if i need to drain an open vented system to replace a radiator valve?
I tried freezing the pipes but with no luck as the amount of pipe i'm able to get to coming from the floor is not enough. :cry:

Many thanks in advance

James[/quote] You could bung the F&E tank.No need to drain then,you might get a small weep but you should be able to handle it :wink:
muttley
Posts: 49
Joined: Fri Oct 26, 2007 3:23 pm


Postby chris_on_tour2002 » Sun Feb 03, 2008 11:03 pm

[quote]You could bung the F&E tank.No need to drain then,you might get a small weep but you should be able to handle it[\quote]


wouldn't you have to bung the expansion pipe as well muttley? otherwise air will get into the system and it will drain, gushing out when the valve is removed
chris_on_tour2002
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Joined: Thu Aug 30, 2007 9:14 pm


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