At my business it is always cold in winter because I have to keep doors open. If I close them customers think we are closed. But the heater under the desk helps. I am closed now through Mar. I have an AC that blows directly across my desk in summer.
It is if very cold. We close those days. That is why we are closed until spring. We are a season area so no business right now either. I do get a custumer call every now and then in the winter. But not worth sitting there all day.