Cold outside last night

Well, last night was the first night the new pellet stove ran all night. I set it to 71 and it kept it at 71 with a low burning flame. I know it was only 32F outside, but now I can sleep better at night knowing that the pellet stove can handle heating the house. I was really surprised at how much it lights up the living room. But the real test will be December and January.