EAP615 Wall mount for whole house
Looking into wifi replacement for my 3 story house (basement, main floor, upstairs). Currently have a single AP on main floor, on top of a TV entertainment center. Get no coverage in basement and fair to poor coverage upstairs. Like Omada line because I have about a dozen wired connections in the house. However, ceiling mount AP's is out of the question.
So my questions are, can I cover my house (aprox. 2800 sq ft.) with a bunch of EAP615's? What is the coverage of these devices? How should they be placed to get the full mesh capability? I also need backyard coverage. How to I accomplish that?