Gas rating and pipe sizes

[Gaseng]

Been gas safe registered for a while now but mostly installing new boilers etc so I calculate the pipe size etc taking into account hob fires and the like pre existing in the property then take gas pressures etc after installs with all appliances on to make sure there correct. I have now started doing landlord checks and find the next bit confusing, if I gas rate a hob and it's spot on, then gas rate boiler and it's spot on how can I tell if the pipe sizing to supply both items is correct i.e boiler might starve hob of gas a little when on full. Any advise would be appreciated.

 

[plumber0808]

Unable to give gas related info out on public forums for safety reasons. If you give one of the moderators your gsr number they will let you into the private forum.

 

[REDSAW]

flame picture not help then or bp?

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