A:AnswerI would have 2 and block one off from the other if I used it every day. Better yet- get 1 and use it at one end of the house one day and the next day start it at the other end. I have 2 but my house is 5400 sq ft. and I rotate and do part of the upstairs one day and the other half another day. Works fine. Same with downstairs. Put the charger somewhere midway and it will come back and charge itself when it needs to.
