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It would appear that satandard good practice and as used in G3 are wrong in some cases.
G3 states termination at high level is acceptable into metal hoppers or flat roofs.
At no point is the discharge allowed to be returned against a wall regardless of height.
A maximum gap of 100mm is required from hard standings.
Pipework exiting below 2m should have caging considered as to the pipe becoming hot.
That aside i am intrested in PRV's on boilers and where people are getting heights etc from these discharge far smaller amounts of water at lower temp than the TPRV of an unvented and the only info i can find relates to ensuring the discharge doesnt cause risk of injury ie over window/doors or discahrge directly out of pipe ends.
G3 states termination at high level is acceptable into metal hoppers or flat roofs.
At no point is the discharge allowed to be returned against a wall regardless of height.
A maximum gap of 100mm is required from hard standings.
Pipework exiting below 2m should have caging considered as to the pipe becoming hot.
That aside i am intrested in PRV's on boilers and where people are getting heights etc from these discharge far smaller amounts of water at lower temp than the TPRV of an unvented and the only info i can find relates to ensuring the discharge doesnt cause risk of injury ie over window/doors or discahrge directly out of pipe ends.
