K
kirkgas
Right, ladies and gentlemen, obviously I know the answer to this and i just want to give you the chance to prove how clever you are 
its only for the oldies, remember when we used to determine OF flue height through roof by the angle of the roof? ie less than 45 degrees you had 600mm pipe through the roof, and more than 45 degrees you had 1000mm through the roof, rather than the 1500mm horizontally or 600mm above ridge,
but what i need is the date of the change, thought i had nothing to do but look in IUP and BS5400-1, but for the life of me i cannot see it, it is for someone classifying on service contract and if installed before the rule change they will be NCS, on thinking about it, if passing flue flow and spillage would we agree that even if the were fitted after the rule change and working peoperly they will still be NCS, but its annoying me that i cant find the date change,
cheers
its only for the oldies, remember when we used to determine OF flue height through roof by the angle of the roof? ie less than 45 degrees you had 600mm pipe through the roof, and more than 45 degrees you had 1000mm through the roof, rather than the 1500mm horizontally or 600mm above ridge,
but what i need is the date of the change, thought i had nothing to do but look in IUP and BS5400-1, but for the life of me i cannot see it, it is for someone classifying on service contract and if installed before the rule change they will be NCS, on thinking about it, if passing flue flow and spillage would we agree that even if the were fitted after the rule change and working peoperly they will still be NCS, but its annoying me that i cant find the date change,
cheers
