Hello all, I will be receiving my first batch of baby chicks Wednesday. I live in Lyons, CO. Currently it's 10 degrees outside. I live off grid and am using a generator for power in my 8x8 insulated shed. I have constructed my brooder in this shed. It is roughly 7.5x3 for 15 chicks. I am using a sweeter heater inside the brooder itself along with 2 small space heaters in the shed. Testing my temperatures and wondering what I can do to improve the heat. Been running everything for a few hrs and am slowly gaining heat, at 76 degrees at the moment. Wanting off grid friendly options or non power options and ideas. Would covering the open area above the brooder with a sheet help hold in more heat in this area? Any suggestions would be fabulous!