Formula dispensers

My UK peeps, do any of you use a formula dispenser machine?

We're about to quit breastfeeding and pumping so baby (3 months) will be exclusively formula fed so we were tempted to look into getting a formula dispenser.

Obviously in the UK it is a requirement that formula is made with boiling water. When I've very briefly looked into dispensers it says that they're not recommended by the NHS because of these temperature requirements. Do any of you use one? How are they sold here if they're not suitable? Any advice gratefully received!