I have gone out and checked the power feed going to the split, even with the bedroom door wide open with a fan force circulating the air into the main room this split unit is still only running at about 1/3 of what its max A/C power draw should be. I don't think I have seen it over 2 amps. Its helping to cool the rest of the house as much as the opening to the bedroom and the box fan by the door will allow.
So I am thinking the window units are having their BTU ratings inflated and the split units have their BTU counts under rated.
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