Radiator circuit

[lauriehurman]

Hi Guys

I've searched the Wiki and faqs but can't find an answer to my dumb question (I'm a Sparky so go easy):

I have an outbound heating pipe and a return heating pipe and they go all over the house. Each radiator is connected in parallel across these two pipes - except the last radiator in the system which is connected from the end of the outbound pipe to the beginning of the return pipe.

Is there a way of identifying this "last radiator in the system" without taking up the floorboards? Obviously it will be a long way from the boiler but so will every other radiator on that level.

Thanks in advance.
Laurie

 

[terryplumb]

Every rad will have a connection to the flow on one valve and the other valve connected to the return. Not really sure what you are getting at ??

 

[dilalio]

The only way is to start from cold and run round the house feeling which rad takes longest to get warm at the flow pipe, below the valve.