Should these be fitted to the flow, the return, or does it not really
matter? The idea being that until the valve opens there is no
circulation, no matter if the valve is at the start, middle or end of
the loop.

Convention seems to have them on the flow, but I'm thinking that because
the temperatures on the return will be lower, putting them there will
protect the delicate little insides a bit more.

Worth worrying about, or should I just go with the flow?

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Cheers, Pete

On 26 Nov,
Peter B wrote:

Convention seems to have them on the flow, but I'm thinking that because
the temperatures on the return will be lower, putting them there will
protect the delicate little insides a bit more.

Worth worrying about, or should I just go with the flow?

I'd go with the return, I've been thinking of changing mine to the return
(cos the boiler I'm thinking of getting next expects the HW one in the
return).

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B Thumbs
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