Sioux Falls can get really cold.
I have made sure to prepare accordingly.
When I moved to South Dakota I researched different types of heating systems. I nailed down that I wanted a furnace. They have three different fuel types. You can get a gas, oil, or electric powered one. With gas it is more common but you have a difficult installation. You need a flue system and gas hookups. You also need to ensure you are good about cleaning it. With a gas powered device it can easily overheat and crash on fire. It can also release carbon monoxide if you aren’t careful. An oil based furnace is more powerful and burns a hotter flame. However, now you are dealing with an on site oil tank and additionally are dependent on oil deliveries. Electricity is 100% efficient but it is super expensive to run. For South Dakota winters, an electric based furnace would be a pro investment. I ended up going with a gas furnace. I am lucky that my Sioux Falls heating dealership does yearly maintenance programs. I am already signed up so I never potentially let my heater run gross. Once a year a contractor comes in to oil, tighten loose parts, and clean the inner workings. They are able to catch small repairs, improve air quality, and lower my energy bills with proper service. So that is a win-win frogger. So far I have to say the furnace works great in Sioux Falls. It is powerful enough to combat the cold and chilly lower temperatures. I am grateful I did research before buying.