If a structure cannot be warmed adequately for LGRs to work effectively, what type of dehumidifier should be used?

When a structure cannot be warmed adequately for low-grain refrigerant (LGR) dehumidifiers to function effectively, using a desiccant dehumidifier is the appropriate choice. Desiccant dehumidifiers operate through a different mechanism than refrigerant-based systems; they utilize hygroscopic materials that absorb moisture from the air without relying on temperature to achieve low humidity levels.

In cooler environments where LGR dehumidifiers may become less efficient due to their dependence on warm air for optimal performance, desiccant units offer a solution as they can effectively extract moisture regardless of the ambient temperature. This makes them particularly suited for situations where the air is cold or where heating the environment may not be feasible.

Understanding the operational principles of these dehumidifiers is crucial for selecting the right equipment based on environmental conditions. Thus, when passive heating isn't an option, employing desiccant dehumidifiers ensures moisture control and promotes effective water damage restoration.