Arrived on site to troubleshoot why their system produces such high energy bills. They moved in before summer started and noticed that their electricity bills are almost twice as much as adjacent units the same size with the same size system. We found the home and thermostats were set at 76 and 80 degrees. The system is 5 ton Lennox AC with a 110k btu Lennox furnace. It has 3 zones, one for each floor. We tested the system to ensure the system was zoned properly and all amp draws off the unit were within spec. In the attic we did find some uncommon discrepancies. There are 6, 120volt appliances in the attic that are hooked up at all times. The dehumidifier didn’t have a thermostat hooked up to it and was set to 0% humidity keeping the dehumidifier on 24 hours a day. Clients shared that even at 77 degrees the space feels cool, humidity was at 43 degrees upon arrival. They have an upgraded filter that used 120v and half an amp while running. The UV bulb draws 120v and runs at about an am