What do you usually do when your bedroom is cold at night? Do you crank up your central heat? Do you pull in a space heater? The problem with central heat is that it warms the entire house, and you're wasting a ton of energy just to bring one single room up to a comfortable temperature. For your money, a stove is likely the most energy-efficient and cost-efficient way to heat your home - and you can focus the heat on one room.