How many btu's to heat a 2 story house?

The number of BTUs (British Thermal Units) required to heat a two-story house can vary significantly based on factors such as size, insulation, climate, and the efficiency of the heating system. On average, a well-insulated 2,000 square foot home may require around 30,000 to 60,000 BTUs to maintain a comfortable temperature. It's essential to conduct a detailed heat loss calculation for a more accurate estimate tailored to specific conditions. Consulting with a heating professional can provide a precise assessment for your home.