T
that bloke.
the instructions say i need a 116mm hole for a 100mm flue , its a potterton boiler , i cannot find a 116mm core drill bit , the biggest i have is 110mm and the next size up i can buy is 120mm.
why is 116mm crucial? could i get away with 110mm? the flue needs 1.5 degree rise above level as it exits the wall but a 110mm hole cut at a slight angle should also be able to give me the 1.5 degree fall.
why is 116mm crucial? could i get away with 110mm? the flue needs 1.5 degree rise above level as it exits the wall but a 110mm hole cut at a slight angle should also be able to give me the 1.5 degree fall.