Yes probably, mines seven metres and runs up the wall outside.
Don’t know if it’s of interest but I saw last night Toolstation are selling double wall insulated tube half price right now
When I asked our insurers were happy to allow me to do my own but i must log when i have done it. Probably should check that information each year and get confirmation in writing.
Thanks John, both of your comments are useful. I’ll need to speak to my insurers.