I was wondering if anyone knows the correct size of lagging used on copper 22mm and 15mm copper internal heating pipework.
Im having a little argument with a person who says it is ok to use 9mm and I think 19mm should be used?
I have looked on the net but finding information is difficult and was wondering if anyone knows where I can find a regulation, further information or some sort of online calculator?
OOPS! Should have mentioned: Pipes being lagged are directly under a boiler for approx 2 meters in lengh before they disappear into a screed concrete floor.
Many thanks for any response
Im having a little argument with a person who says it is ok to use 9mm and I think 19mm should be used?
I have looked on the net but finding information is difficult and was wondering if anyone knows where I can find a regulation, further information or some sort of online calculator?
OOPS! Should have mentioned: Pipes being lagged are directly under a boiler for approx 2 meters in lengh before they disappear into a screed concrete floor.
Many thanks for any response