Past two windows each adds 500 BTU, past two people each adds 600, and a kitchen adds 4,000.
Estimated load
6,000Btu/h
- 300 sq ft× 20 BTU6,000
- 8 ft ceiling× 1.006,000
- Average insulation× 1.006,000
- Average sun× 1.006,000
A 6,000 BTU headThe smallest head class that covers this load.