Simple and when I see someone here installing them I'll cry! I use space heaters because my furnace isn't working and I can't afford elec person right now bills reach 500+ in cold Winters here and I'm still cold and dealing with cancer past 10 yrs has been rough. Ty and I have plenty of sun and sky! Summers are so hot and use again $$$$$$ elec with window units. I've wanted dolor since I was 20 yrs old in my first home! Dolor was young but I knew I wanted them!