Example:
15 Btu/s·ft² = 899.999991 Btu/min·ft²
1 Btu/s·ft² = 59.999999 Btu/min·ft² | 1 Btu/min·ft² = 0.016667 Btu/s·ft²
Conversion Steps:
15 × (11356.526682221 / 189.275446548) = 899.999991232