just found your site i agree issues need tightening up in the uk not only in the plumbing and heating world but also in the electrical section. in spain and other european countries qualifications are low or non exsistent but these so called tradesmen? can get jobs quite easily (ie it is only a very slight gas leak (butane) but a draught will clear it !!) check for gas leaks with a naked FLAME !! DO NOT let these people loose to undermine our TRADES