hot water radiator forum

i have a combi-boiler when heating is off and i turn on a hot tap downstairs hot water goes to a radiator

Thunder Thighs , Sunday, 8th of August 2010 01:01:07 PM

it only affects two radiators when the hot tap inthe kitchen is running 
Thunder Thighs
heat gets to the radiator in the upstairs toilet when it is running in the 
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downstairs bathroom it also gets to an upstairs bedroom what can be causing 
Joined: Friday, 7th of May 2010, 03:24:48
this our pressure also has to be turned up once a week
 
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Jumboshrimp ;] , Monday, 9th of August 2010 02:18:51 PM

We had a new system put in 6 months ago and our bathroom  
Jumboshrimp ;]
radiator warms up when the hot tap is run. The Corgi engineer said it was  
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OK so we were happy.  
Joined: Tuesday, 25th of May 2010, 03:34:58
The pressure loss also occurred on ours and it was a radiator valve  
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weeping very slightly at a connection. He nipped it up very slightly and  
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the system now stays pressurised. One tip to find a weep. Wrap a piece of  
toilet paper around the connections. Even the slightest dampness will  
show.  
 
 
 
 
 
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Can , Tuesday, 10th of August 2010 12:47:36 PM

problem with the diverter valve most likely,unless its a new  
Can
install  
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cuppy cake , Wednesday, 11th of August 2010 09:30:31 PM

Some plumbers would install their pipework for this to occur.  
cuppy cake
As in the bathroom it would heat the rad instead of having to put the  
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boiler on, on a cold day. The same applies to a cold kitchen. It is an old  
Joined: Saturday, 15th of May 2010, 00:41:26
way of piping rads up and was done for the users benefit. There is nothing  
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wrong with your heating system.  
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Curly Temple , Thursday, 12th of August 2010 08:54:04 PM

The divertor valve in the boiler is faulty,its allowing hot  
Curly Temple
water to pass to the heating circuit while its heating the domestic hot  
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water.  
Joined: Friday, 7th of May 2010, 11:11:44
You might have a leak on the system somewhere,probably at a radiator or  
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the expansion vessel in the boiler has lost its air charge.  
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A corgi registered engineer is what you need.  
 
 
 
 
 
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