Should I have whatever switch it is on my HVAC Thermostat set to "Gas/Oil" or "Electric/Heat Pump?"? It is run by electricity, with no gas in the house at all, but just want to make sure before I change it. They are currently set to Gas/Oil for some reason, and has been for the past year and a half we've lived here... and I have no clue if it was set that way for a reason. I have noticed the house has very inconsistent levels of temp from room to room. This button I see is on the back of the Thermostat on both levels of the house... and both are currently set the same way. I noticed it when I changed the batteries in the thermostat. The thermostat is indeed set to Auto. I also have no manual for the thing. My handyman knowledge is limited and surely growing after owning my first house.