Comparisons & Best X Buying GuidesSingle Boiler vs. Heat Exchanger vs. Dual Boiler: Ultimate Guide
The three designs differ in one thing: how many places the machine heats water, and at what temperature. A single boiler machine uses one boiler for both brewing and steaming, so it does one job at a time. A heat exchanger (HX) machine keeps one boiler at steaming temperature and heats the brew water as […]









