Two pipe or "three pipe" system?

Is a "three pipe" system i.e. a two pipe system with reversed return useful? Or should I just stick to a two pipe system (a bit easier)?

Is it necessary to balance a system with TRVs anyway?

Mr F.

Reply to
Mr Fizzion
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Sorry, you've lost me!

Yes! If you want the system to heat up evenly, anyway.

Otherwise, some of the far-flung rads may not get hot until the nearer rooms have got up to temperature and shut their TRVs.

Reply to
Set Square

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