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What sort of bypass do I need for a Potterton Netaheat 16/22?

I have a 15mm bypass (with valve) and a 22mm loop to a towel rail fitted to the Potterton Netaheat 16/22. I'm looking to replace the towel rail with one with 15mm fittings. Could this be a problem? Does the boiler need both loops or will one or other be sufficient to prevent overheating?

John More
January 2007

Potterton Heating, Home Heating Systems

It will be fine... Are you 'S'-Plan or 'Y'-Plan as with the 'Y' you don't necessarily need it; with the 'S' a 15mm auto by-pass will be sufficient.

GasAid.co.uk
January 2007

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What sort of bypass do I need for a Potterton Netaheat 16/22?

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