Agile said:
The real problem is that a non registered and inexperienced person will just not know what he can do and what he should not be doing. He is therefore at risk of doing something which could be dangerous.
For what it's worth, I completely agree that this is the prime concern - the "unconscious incompetence" phenomenon, whereby someone who isn't specifically trained doesn't know how much they don't know, and could work away being careful and competent without realising, for example, that they've disturbed a connection to a safety component, or nudged a gas joint without later doing a tightness test, or pushed an obstruction into a flue or airway, or countless other acts of human error that in other circumstances would be innocuous.
I recognise the risk, which is why I have no wish to encourage novices to work on boilers when they don't know what they're doing, and why I've never encouraged anyone to do that. What I have done, as have others, is open
some people's eyes to the legislation so instead of just being scared away from touching a boiler, in the incorrect belief that it's illegal, they can be aware of the real physical risk and make an
informed decision.
If you noticed from the Water Systems debacle, wherein he changed from "DIY is legal" to "competent DIY is legal" without admitting that he was wrong, I was dead against what he was advocating.
If you could look past the person you appear to
think I am, i.e. no more than an irritant and a hazard, you might well realise that I have the same concerns that you do.