What Is This Tool?
This converter transforms heat transfer coefficient values measured in Btu (th) per hour per square foot per degree Fahrenheit to kilocalorie (IT) per hour per square foot per degree Celsius. It is designed for engineers and researchers working with thermal transmittance and convective heat flow, facilitating cross-unit calculations without losing imperial area units.
How to Use This Tool?
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Enter the heat transfer coefficient value in Btu (th)/hour/square foot/°F into the input field
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Select the source unit as Btu (th)/hour/square foot/°F
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Choose the target unit as kilocalorie (IT)/hour/square foot/°C
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Click the convert button to get the equivalent value in kilocalorie (IT)/hour/square foot/°C
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Use the provided examples and results to verify and apply your conversion
Key Features
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Supports conversion between Btu/(h·ft²·°F) and kilocalorie (IT)/(h·ft²·°C)
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Useful for specifying U-values and heat transfer coefficients in building and HVAC contexts
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Enables calculations involving energy flux in kcal (IT)/h while retaining imperial surface area units
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Browser-based tool that simplifies complex unit transformations
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Provides clear examples to help users understand the conversion process
Examples
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2 Btu/(h·ft²·°F) converts to 0.906578043 kilocalorie/(h·ft²·°C)
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5 Btu/(h·ft²·°F) converts to 2.2664451075 kilocalorie/(h·ft²·°C)
Common Use Cases
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Determining U-values of construction elements like walls and windows for thermal envelope calculations
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Sizing and assessing HVAC heat exchangers and radiators using consistent unit systems
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Comparing insulation effectiveness and steady-state heat loss through building assemblies
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Selecting HVAC equipment based on heat transfer coefficients expressed in kcal (IT)/h·ft²·°C
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Reporting and analyzing experimental convective heat transfer data in imperial area units
Tips & Best Practices
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Always verify the definitions of Btu (th) and kilocalorie (IT) used in your calculations to ensure consistency
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Remember that surface area units remain in square feet; convert area units separately for full metric compliance
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Consider the inherent differences between °F and °C when interpreting temperature differences in conversions
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Use the provided examples as reference points to validate your converted values
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Employ the tool as part of a broader workflow involving HVAC and thermal performance assessments
Limitations
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Conversion accuracy depends on consistent use of standard definitions for Btu (th) and kilocalorie (IT)
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The tool retains imperial area units, requiring additional steps for full metric conversion of surface area
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Users must be mindful of how temperature scale differences (°F vs °C) influence the conversion factor
Frequently Asked Questions
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What does Btu (th)/hour/square foot/°F represent?
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It measures the rate of heat transfer per unit area for a one-degree Fahrenheit temperature difference, commonly used in HVAC and building thermal calculations.
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Why convert Btu/(h·ft²·°F) to kilocalorie (IT)/(h·ft²·°C)?
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Converting helps express heat transfer coefficients in metric-based energy units while keeping imperial area units, ensuring compatibility with international standards and calculations.
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Are there any considerations when using this conversion?
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Yes, pay attention to differences in temperature scales and definitions of energy units, and note that area units remain in square feet after conversion.
Key Terminology
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Btu (th)/hour/square foot/°F
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A unit expressing the heat transfer rate through one square foot area per degree Fahrenheit temperature difference, used in imperial heat transfer measurements.
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Kilocalorie (IT)/hour/square foot/°C
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A metric-based unit indicating heat flow rate per unit area per degree Celsius, commonly used in international thermal energy calculations with imperial area units.
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U-value
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A measure of thermal transmittance of a building element such as a wall or window, representing heat transfer efficiency.