[jimcol]

I installed the second A/C myself and it is pretty easy. Worse part is getting it onto the roof. I went with the 15K btu on advice from Mudchief. His logic being if one goes out a 15k is going to do you more good than the 13.5k. The low profile wasn't important to me as the new unit was only 2"'s higher than the vent cover I removed. Did not duct mine or hook to the thermostat. Just use it in dump mode using the controls on the face of the unit. Works good for us! Jim