I have an FCL (left-handed) wood-framed casement window in my apartment. I'm looking to add an operator to it. Right now it's just a manual push open/pull close. I think I've found an option or two, but it's unclear to me what features I need. I'm also not sure exactly how to take the measurements. So:
- When do I need an operator with a link? For example, right now I am looking at this operator without a link, or this one with a link. Does a link just add more stability to the open movement, or is there another reason one might need one?
- How do I know what length of an arm I need? I assume I can just open the window to its fullest extent, then measure from the point on the sill where I would install the operator to the point on the window where I would expect the operator to connect to, but how do I know where that would be?