How loud is the generator or is there anything disquieting in its operation?

SG Classic in SG Climate
Regarding the fact that the generator is not used in, for example bedrooms, where we wish total absence of sounds of any device the generator is unobtrusive.

If you wish to use it in the room where total silence is required, it would be practical to ask our representative for a demonstration of the device.

SG Intuition
Is appropriate for the use in rooms where silence is desirable. Working sound of the device is inaudible.