Service Fluid Efoy for fuel cells

Service fluid for Comfort fuel cell.

Here is a description of what the service fluid is and when it is needed:
The service fluid is already in the EFOY fuel cell when the device is delivered. With SFC’s patented water recovery system, fluid is recovered in a closed circuit. Over a long period of operation in high outdoor temperatures, part of the fluid may evaporate and the device will ask for service fluid. It is recommended to always have a bottle with you. Never fill more than one bottle, and only if the device specifically asks for it (via the control panel).