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Bath pipe size for unvented hot water

Discussion in 'Plumbing and Central Heating' started by dextur, 13 Mar 2014.

  1. dextur

    dextur

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    Hi if feeding baths off un-vented hot water so mains pressure (well 3 bar after the reducing valve on the cylinder). Do baths require 15mm or 22mm supply's. I know from a combi 15mm is ok to a bath, but what about an uvented hot water cylinder?
     
  2. Hessles

    Hessles

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    From what I've read you'd be best sticking to 22mm for the flow.
     
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  4. GavThePlumber

    GavThePlumber

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    28mm on my bath :D
     
  5. Hessles

    Hessles

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    Worth the extra cost?
     
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