From cardboard wheel to AI: Zilmet updates the way installers access technical support

Ask Cal - the Zilmet chatbot character

There was a time when specifying the right expansion vessel meant rotating a cardboard wheel — a circular sizing calculator with a spinning disc and cut-out windows that revealed the answer when you lined up the figures. Then came a dedicated app. Now Zilmet has launched Cal, an AI assistant on its website that gives installers instant access to technical and product information around the clock — the latest chapter in a long-standing commitment to making sure the right information is always within reach.

For Zilmet, technical support has never been an afterthought. Installers have always been able to call the company directly and speak to an engineer who knows the products. That hasn't changed. What Cal adds is convenience — the ability to get to datasheets, sizing guidance and product detail immediately, at any time of day, without a search or a wait.

Cal already has access to everything Zilmet knows about its products. What it is still learning is the language — the different ways that installers ask the same question. Every conversation helps. Zilmet is actively encouraging installers to use it, put questions to it in their own words, and in doing so help shape a tool that gets more useful the more it is used.

Stuart Gizzi, MD of Zilmet, said: "The information has always been there — on the website, in the datasheets, on the end of the phone. Cal doesn't change what we know, it changes how quickly and easily installers can get to it. The more people use it and ask it questions in different ways, the sharper it becomes. We'd encourage installers to give it a proper workout."

Zilmet believes Cal makes it the first expansion vessel manufacturer in the UK to offer a dedicated AI technical assistant. It is available now at zilmet.co.uk, alongside the Technical Support Hub, Expansion Vessel Calculator and full datasheet library. Direct technical support is available on 01889 272185 or sales@zilmet.co.uk.

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