Kelly Hoppen MBE, interior designer and star of the BBC’s Dragons’ Den, has been confirmed as brand ambassador for Polypipe’s underfloor heating.Polypipe says that Hoppen (pictured) has long been a proponent of underfloor heating and utilises it to maximise all of the available space where projects allow.With the underfloor heating market growing in the UK, Polypipe says that Hoppen will …