Heatless regenerative dehumidifying equipment operate on very short cycles (3 to 5 minutes), with two towers continuously alternating between drying and regeneration modes. This causes constant wear and tear on the automatic valve seat, requiring frequent disassembly inspection and replacement of driving components.
If you are looking to save on maintenance costs, heated regenerative dehumidifying equipment are your best bet.

While heated regenerative dehumidifying equipment use more automatic valves and other components that require maintenance than you normally find in heatless systems, they operate on longer cycles. Due to their more stable operation, heated regenerative dehumidifying equipment valves last longer and require less maintenance.