Heating design shapes the workflow
The heating system determines how quickly the machine is ready, whether it can brew and steam together, and how much recovery time is needed. Marketing names are not perfectly consistent, so the exact manual matters.
System comparison
| System | Strength | Watch for |
|---|---|---|
| Single boiler | Simple, compact and affordable | Wait when switching between brew and steam |
| Thermoblock/thermocoil | Fast warm-up and compact design | Performance varies by implementation |
| Heat exchanger | Brew and steam together | Temperature routine may require practice |
| Dual boiler | Independent brew and steam control | Higher cost, size and energy use |
Choose from normal drink volume
A person making one americano each morning may gain little from a dual boiler. A household making several milk drinks in a row may value simultaneous brewing and steaming every day.
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