Heating Requirement Formula:
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Definition: This calculator estimates the heating requirements (in BTU/h) for a garage based on its volume and desired temperature increase.
Purpose: It helps homeowners and professionals determine the appropriate heating capacity needed to maintain comfortable temperatures in garage spaces.
The calculator uses the formula:
Where:
Explanation: The formula accounts for the space volume and the temperature difference between inside and outside.
Details: Accurate heating calculations ensure energy efficiency, proper equipment sizing, and comfortable working conditions in the garage.
Tips: Measure your garage's length, width, and height to calculate volume. Determine ΔT by subtracting the lowest expected outdoor temperature from your desired indoor temperature.
Q1: How do I calculate garage volume?
A: Multiply length × width × height in feet. For example, a 20'×20'×8' garage = 3,200 ft³.
Q2: What's a typical ΔT for garage heating?
A: For winter heating, common ΔT values range from 30°F to 50°F depending on climate.
Q3: Does this account for insulation?
A: The 0.133 factor assumes minimal insulation. For well-insulated garages, use 0.08 instead.
Q4: How do I convert BTU to heater wattage?
A: Divide BTU by 3.412 to get watts. For example, 5,000 BTU ≈ 1,465 watts.
Q5: Should I add a safety factor?
A: Yes, consider adding 10-20% to the calculated BTU for safety margin and faster warm-up.