Found system sent to electric heat only on my arrival so I did explain to customer that the most efficient way to have the system set is to “system in control” , that way it will only stage in the auxiliary heat when it has to and will otherwise try to heat the house using the heat pump. Heat pump was giving me an 11° split even though it is only around 5° outside, so I explained it to the customer he will use auxiliary heat most of the time on days like today when it’s very cold but usually when the temperatures are above 20° the auxiliary heat cycles in very minimally
