Very nice. Being that I experienced it all in person, indeed, they all work very well. When you pointed the infrared thermometer at the couch and showed it was at room temperature, that's actually a very important point. Many are under the assumption that they will save energy by raising their thermostat during the day, while they are at work for example. And then, of course, because they will have one of those wi-fi controlled thermostats, they can set it back down from their phone, before leaving work. If they set it down to 70, by the time they get home, chances are good it hasn't even come close to cooling back down to that setpoint; they claim that central A/C takes about an hour per degree of cooling. Once that setpoint is finally reached, the problem is, the furniture, the walls, and any other objects in the room have not cooled down to that setpoint, and are still radiating heat back into the room. That will soon make another call for cooling, and the unit will run some more. How many BTUs do you have of all of the units combined?
