An all-in-one washer-dryer uses the same drum to wash and dry. Two separate units let you overlap tasks, but they require moving the laundry and having space and hookups for both.
How the workflow changes
| Question | All-in-one | Two appliances |
|---|---|---|
| Transfer | You can go from wash to dry without moving garments | Laundry must be moved to another appliance |
| Simultaneity | The drum finishes one phase before starting another | You can wash one load while another dries, if the installation allows it |
| Capacity | It can vary between the wash cycle and the full cycle | Each appliance has its own capacity |
| Availability | One service call on the unit can stop both functions | Tasks depend on separate appliances |
A washed load may need to be split
If the drying limit is lower, it is not enough to select wash and dry for the entire maximum wash load. You have to respect the capacity of the most restrictive phase or remove part of it before drying. Program data does not apply to all fabrics.
Technology determines the connections
There are different integrated drying systems. GE documents, for example, a combo with heat pump and no external vent duct. Other designs have different requirements, including the use of water for condensation.
A laundry center or tower with two drums is not an all-in-one unit either. To compare formats, count simultaneous tasks, actual loads, and full operating footprint, not just floor space.
Compare the path of a typical load from dirty to dry clothes, including the cycles and transfers required.