What Is This Tool?
This tool converts thermal conductivity units from Btu (IT) inch/hour/sq. foot/°F, commonly used in North American building and HVAC engineering, to calorie (th)/second/cm/°C, a unit utilized in older cgs-based engineering and calorimetric experiments.
How to Use This Tool?
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Enter the value in Btu (IT) inch/hour/sq. foot/°F to be converted.
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Select the target unit: calorie (th)/second/cm/°C.
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Click the convert button to get the equivalent thermal conductivity value.
Key Features
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Converts thermal conductivity between imperial and cgs-based units accurately.
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Supports unit translation essential for building science and laboratory contexts.
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Browser-based interface available for quick and easy unit conversion.
Examples
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Converting 10 Btu (IT) inch/hour/sq. foot/°F results in 0.003447129 calorie (th)/second/cm/°C.
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Converting 50 Btu (IT) inch/hour/sq. foot/°F results in 0.017235645 calorie (th)/second/cm/°C.
Common Use Cases
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Specifying insulation thermal conductivity in building product datasheets.
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Performing heat transfer calculations for HVAC load and energy modeling.
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Translating data between North American standards and older engineering references.
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Conducting laboratory heat-flow measurements and calorimetric analyses.
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Converting legacy thermal data to modern SI-based calculations.
Tips & Best Practices
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Ensure steady-state heat transfer conditions when applying conversions.
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Verify unit definitions for calorie and Btu variants used in calculations.
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Use consistent length and temperature difference units between systems.
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Double-check converted values when integrating data from different standards.
Limitations
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Conversion involves different measurement bases (imperial vs. cgs), requiring care.
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Not intended for transient heat transfer conditions without adjustments.
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Results depend on precise calorie and Btu variant definitions employed.
Frequently Asked Questions
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Why convert from Btu (IT) inch/hour/sq. foot/°F to calorie (th)/second/cm/°C?
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Converting between these units helps translate thermal conductivity data between North American building/HVAC standards and older cgs-based engineering or laboratory measurement systems.
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Can this conversion be used for transient heat transfer calculations?
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No, this tool is intended for steady-state heat transfer conversions and may not apply directly to transient scenarios.
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What should I be careful about when using this converter?
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Users should carefully handle differences in length, area, and temperature units and verify the precise definitions of calorie and Btu variants.
Key Terminology
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Btu (IT) inch/hour/sq. foot/°F
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A thermal conductivity unit expressing heat transferred per hour through a 1 inch thick material per square foot area with a 1 °F temperature difference, commonly used in building and HVAC engineering.
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Calorie (th)/second/cm/°C
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A thermal conductivity unit measuring heat flow in thermochemical calories per second through 1 cm thickness and 1 cm² area with 1 °C temperature difference, used in cgs-based engineering and calorimetry.
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Thermal Conductivity
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A material property that quantifies its ability to conduct heat.