Zilmet is celebrating the success of its UK arm with a range of limited edition National Treasure Vessels, designed to help heat homes with familiar faces we know and love.

The firm, which supplies expansion tanks across the world, established a dedicated unit in Staffordshire after supplying to the UK market for 25 years.

Such is the success of this venture, Zilmet developed the limited edition range, available throughout April only, comprising three designs with modern British icons.

Stuart Gizzi, director at Zilmet UK, said: “The fine tradition of Italian plumbing craftmanship is well documented throughout history, from introducing modern sanitary to Britain in Roman times through to being immortalised in Nintendo’s Super Mario.

“Because it’s quintessentially British to have your plumbing provided by an Italian, we’ve decided to honour this tradition with a limited edition range of vessels honouring Britain’s national treasures.

“Extensive market research threw up a list of respected Britons. Clearly the Queen will always be our figurehead and therefore had to feature on our largest vessel, Stephen Fry was a no-brainer, but we were surprised to learn that the British public are sweet on Mary Berry, with her popularity rising. This homage to her provides the icing on the cake of a great range.”

Other popular options include Gary Barlow, Benedict Cumberbatch and Nigella Lawson.