🔥 BTU Calculator

📚 Understanding BTU Requirements

BTU (British Thermal Unit) measures heating and cooling capacity. Our calculator uses industry-standard formulas to estimate your room's requirements.

BTU Guidelines by Room Size

Small rooms (under 150 sq ft): 5,000 - 6,000 BTU

Medium rooms (150-350 sq ft): 7,000 - 12,000 BTU

Large rooms (350-550 sq ft): 14,000 - 18,000 BTU

Open areas (550+ sq ft): 21,000+ BTU

Factors That Affect BTU Needs

• Room size: Larger rooms need more BTUs

• Ceiling height: Higher ceilings increase volume

• Insulation: Poor insulation means heat loss

• Climate: Colder regions need more heating

• Sun exposure: More sun = less heating needed

• Occupants: More people add heat load

💡 Pro Tips

• Always size UP for heating (oversizing is better than undersizing)

• For cooling, slightly undersizing can reduce humidity

• Consider multiple units for large or irregular spaces