It is 4 zones with (effectively) 5 floors and a lot of square footage. Anderson gave us a great deal on high efficiency triple pane argon gas filled windows and

It is 4 zones with (effectively) 5 floors and a lot of square footage. Anderson gave us a great deal on high efficiency triple pane argon gas filled windows and I walked the home with a wireless thermometer to check for obvious insulation problems. What else could I do to improve the thermal envelope? I've followed much of the advice in this cleantechnica series on this exact problem: https://cleantechnica.com/2020/10/08/home-efficiency-101-appliances-thermal-envelope-lighting-plumbing-more/ https://cleantechnica.com/2020/10/08/home-efficiency-101-app...