ONLINE plumbing and heating business PlumbNation says it notched up sales of £14m last year, up 20%.The Wirral-based business, led by managing director Royden Evans, is aiming for revenues of £50m over the next five years.Its strategy involves the launch of sister brands, such as ElecNation which specialises in home lighting and electrical products.Mr Evans, who founded the Bromborough business in 2007, said: “Competition online has never been greater which means that to continue to grow and increase market share ......for the full story register now for free or login below...