Warehouse BTU Formula:
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Definition: This calculator estimates the heating or cooling load (in BTU/h) required for warehouse spaces based on area, BTU per square foot, and a warehouse factor.
Purpose: It helps HVAC professionals and facility managers determine the appropriate heating and cooling capacity for large warehouse spaces.
The calculator uses the formula:
Where:
Explanation: The base BTU load is calculated from area and BTU/ft², then adjusted by the warehouse factor to account for large space characteristics.
Details: Proper BTU estimation ensures efficient temperature control, prevents equipment oversizing/undersizing, and optimizes energy costs in warehouse environments.
Tips: Enter the warehouse area in square feet, BTU per square foot (default 30 BTU/h·ft²), and warehouse factor (default 1.3). All values must be > 0.
Q1: What's the typical BTU/ft² for warehouses?
A: Most warehouses use 20-50 BTU/h·ft², with 30 being a common starting point for moderately insulated spaces.
Q2: How is the warehouse factor determined?
A: The factor accounts for ceiling height (typically 1.2-1.5), insulation quality, and air infiltration in large spaces.
Q3: When would I use a higher BTU/ft² value?
A: Use higher values (40-50) for refrigerated warehouses, poorly insulated spaces, or locations with extreme temperatures.
Q4: Does this include ventilation requirements?
A: No, ventilation calculations should be done separately and added to the heating/cooling load.
Q5: How do I adjust for ceiling height?
A: Multiply the warehouse factor by (actual height/standard height). For example, if standard is 20ft and yours is 30ft, multiply factor by 1.5.