Last month I just put in a new CARRIER heat pump. My electric bill increases 50%. Does this seem right? Do you think there is default in the installation to cause my electric bill so high. I normally average $100 a month with my old heat pump. I live in a 3 story townhome by myself. Below is what I installed. I programmed the thermostat where it is 66 degrees when I leave, 68 degrees when I come home, and 70 degrees when I go to bed. I also installed a new whirlpool water heater. The water heater is set 120 degrees.
Is there something I should check with the heat pump or ask the installer to check?
Carrier 25HPA530a003 heat Pump
Carrier FV4BNF002 air handler
Carrier KFCEH0901N10 electric heat
Carrier TSTATCCPHP01 programmable thermostat
Thanks for all the advices.