How many BTU needed for 14000 sq ft?

To estimate the BTU requirements for a 14,000 sq ft space, you typically use a rule of thumb of about 20 BTU per square foot for general heating and cooling needs, though this can vary based on factors such as insulation, climate, and building use. Therefore, for 14,000 sq ft, you would need approximately 280,000 BTU. It's recommended to consult with an HVAC professional for a more accurate assessment tailored to your specific conditions.