Any of you with ducted reverse cycle know what your average kWh usage is during winter? Had our gas heating and evap cooling replaced with a reverse cycle unit last week. Electricity usage has increased from an average of 10 kWh per day to 60! Seems a bit odd. I had heard the usage for similar systems in Canberra was around 10 - 15 kWh per day. We leave the unit off overnight and in the evening turn zones off and shut doors when they are no longer used (eg once the kids are in bed, the family room is closed and zone turned off). Run the house at 20-21 degrees. I'm a bit suspicious there's maybe a duct that wasn't sealed properly or one of the old evaporative ducts wasn't tied off and so I'm leaking warm air and the unit is running flat out. I'm getting those properly removed and the ceiling patched soon. I've emailed the installer to see what they think, but if anyone knows their own usage it would be a good sense check. Edit: 3 bedroom single story. Open plan kitchen, dining, lounge and separate family room.