This guy needs more experience before doing videos to attempt to educate engineers . Couldn’t believe he tried to pull fan assembly out with gas pipe connected , shows how many of these boilers he’s worked on before . Don’t think he did safe isolation just switched sour off “that proves nothing “ I have to worry how long it will be before these amateur engineers end up getting hurt or even worse there customers when working on boilers there clearly not skilled to do so . Thumbs down from me won’t be watching anymore of this guy 👎