I have a new Broan ECM 20 kw electric furnace installed in my house and I was wondering what the best settings would be for the weather we are experiencing right now where I live,the temperature is below freezing and it seems like the furnace is working hard to keep the house at a comfortable heat,so I was thinking that maybe I could adjust the settings to make it better,any suggestions would be greatly appreciated... Thanks

The only settings you could adjust is the thermostat. Possible reasons for your situation is window air leakage, wall, roof and crawl space insulation and other air leakage.