you can install it yourself if you understand plumbing. bend copper pipe, solder fitting, where to connect in existing pipework with out causing airlocks and workout height and pipe sizes to get a good flow not a dribble. by all means have ago do what b&q say you can do it ( thats why theres so many d.i.y bodgers.) may be get a plumber a save the ag
hi-spec plumbing
October 2006