I wanted to love this blanket, but felt that ithe level of heat output was too low for Upstate NY. The blanket will take the edge off on a chilly day, but may not be enough to keep a dog warm on a cold day. I tested this blanket outdoors in 30 to 40-degree weather, and I could not feel much warming, even when covered with a blanket to retain heat. I measured about a 5 degree temperature increase in one area of the blanket. When my dogs settled on the blanket, the combination of their body heat and and the warming of the blanket did create a large cozy area. My dogs did seek out blanket, so I know it worked! I tested the blanket in late October in upstate NY during chilly, but above freezing, temperatures. Winters are well below freezing here, and my dogs go to agility trials and classes, often needing some time in the car. I want a blanket to keep them warm and safe. Myself, and the other agility lovers I showed the blanket to, thought that the blanket was a good size, easy to transport and use, sturdy, easy to clean, and made by ORORO, a brand that is popular at agility because ORORO makes great vests and jackets that are safe and work very well.