I resolved an air leak in my attic and then installed an ecobee. Hows my temp profile look for 13yr old york single stage 13 seer heat pump? Hows my resistance slope look? This is information built on temps between 20-50 degrees over about a month.
Heat pump look to be performing well? House look well insulated?
It seems pretty good; effective at very low temps…but ultimately the efficiency is based on many factors. Definitely use the compare tab to compare some of your characteristics to other similar homes in your area.