What Is This Tool?
This converter allows you to change thermal conductivity values from Btu (th) foot/hour/sq. foot/°F to Btu (th) inch/second/sq. foot/°F, facilitating accurate heat transfer calculations in Imperial units.
How to Use This Tool?
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Enter the value in Btu (th) foot/hour/sq. foot/°F.
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Select the target unit Btu (th) inch/second/sq. foot/°F.
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Click convert to see the equivalent thermal conductivity value.
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Use the result for engineering or building material calculations.
Key Features
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Converts thermal conductivity values between specific Imperial units.
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Supports building energy modeling and HVAC design calculations.
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Easy unit conversion for engineering and insulation material analysis.
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Browser-based and simple to use for quick results.
Examples
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5 Btu (th) foot/hour/sq. foot/°F converts to 0.0166666665 Btu (th) inch/second/sq. foot/°F.
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10 Btu (th) foot/hour/sq. foot/°F converts to 0.033333333 Btu (th) inch/second/sq. foot/°F.
Common Use Cases
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Specifying thermal conductivity of building materials and insulation in Imperial units.
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Performing heat transfer calculations in walls, roofs, and windows for HVAC and building design.
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Converting material data between Imperial and SI systems in engineering analyses.
Tips & Best Practices
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Ensure consistent unit dimensions when performing conversions to avoid errors.
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Use steady-state heat conduction assumptions for accurate results.
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Cross-check converted values when applying to engineering standards or documents.
Limitations
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Conversion assumes steady-state heat conduction with consistent temperature difference.
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Material anisotropy or transient heat conduction may require more advanced considerations.
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Preserving correct unit dimensions is essential to prevent calculation mistakes.
Frequently Asked Questions
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What does 1 Btu (th) foot/hour/sq. foot/°F represent?
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It represents the amount of heat energy in Btu transferred per hour through a material one foot thick with a one square foot area and a temperature difference of one degree Fahrenheit.
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When should I use Btu (th) inch/second/sq. foot/°F units?
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Use this unit for thermal conductivity in US customary systems when calculations or reports require it, especially in HVAC and older engineering standards.
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Can this conversion be applied to transient heat transfer calculations?
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No, this conversion assumes steady-state heat conduction conditions and may not be accurate for transient scenarios.
Key Terminology
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Btu (th) foot/hour/sq. foot/°F
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An Imperial unit measuring thermal conductivity as heat transfer in Btu per hour through a 1-foot thickness with a 1 square-foot area for a temperature difference of 1 °F.
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Btu (th) inch/second/sq. foot/°F
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An Imperial unit of thermal conductivity representing heat transfer in Btu per second through a 1-inch thickness with a 1 square-foot area and a 1 °F temperature difference.
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Thermal Conductivity
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A property that quantifies a material's ability to conduct heat.