Steam and water boilers...
This is what you will need if your customers like frothy coffee, the steam nozzle providing the means to aerate the milk.
There is a large price difference between these and water-only boilers because to produce the steam a pressurised boiler is required.
Bravilor, Instanta (illustrated) and Fracino are some of the biggest UK names in steam and water boilers. We offer very good discounts on all makes.