What size baseboard heater will I need to heat 225sf?

To heat a 225 square foot space, you'll typically need about 10 watts per square foot, depending on insulation and climate. This means you would require a heater with a total output of around 2,250 watts. If you're using baseboard heaters, this usually translates to a unit or units that provide approximately 7.5 to 10 feet of baseboard, depending on the specific wattage of the model you choose. Always consult with a heating professional for precise calculations tailored to your home's needs.