Talking about things with lifetime warranties, I bought an underfloor heating mat from a company called Heatmat because they had a lifetime warranty, after a year it stopped working and when I contacted them they told me it was £570 + vat to send somebody out to fix it as it is usually faulty installation but if its a faulty product they would give me my money back ! The mat didn't cost anything like £570 so I told them to stick it and bought another but not from Heatmat.