The coverage area for 45,000 BTUs of heat can vary based on factors such as insulation, climate, and the type of heating system used. Generally, a rough estimate is that 1 BTU can heat about 1 square foot of space in a well-insulated home. Therefore, 45,000 BTUs could effectively cover approximately 1,500 to 2,000 square feet in ideal conditions. However, this estimate may need adjustment based on specific circumstances.
5 ft by 9 ft is 45 square feet. This requires 6,480 square inches to cover it.
140
A Standard roll of 30lb felt will cover 2 square or 200 sq ft
2 yards
945
8.75lbs
5 ft by 9 ft is 45 square feet. This requires 6,480 square inches to cover it.
300
140
About 1500 sq ft
A Standard roll of 30lb felt will cover 2 square or 200 sq ft
150 ft
945
2 yards
81
8 tiles
2500sq ft in northern climate