What Is This Tool?
This unit converter allows users to translate heat transfer coefficient measurements from kilocalorie (IT)/hour/square meter/°C to Btu (th)/hour/square foot/°F. It's designed to facilitate smooth conversion between metric and imperial units commonly used in building and HVAC applications.
How to Use This Tool?
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Enter the numeric value in kilocalorie (IT)/hour/square meter/°C
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Select the from-unit and to-unit correctly
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Click the convert button to get the result in Btu (th)/hour/square foot/°F
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Use the converted value for your thermal performance calculations or comparisons
Key Features
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Converts heat transfer coefficients between metric and imperial systems
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Supports units used for thermal performance in building construction
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Useful for HVAC design and energy efficiency analysis
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Applies a precise conversion rate for steady-state conditions
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Browser-based and easy to use without installation
Examples
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5 kilocalorie (IT)/hour/square meter/°C equals approximately 1.02477 Btu (th)/hour/square foot/°F
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10 kilocalorie (IT)/hour/square meter/°C equals approximately 2.04953 Btu (th)/hour/square foot/°F
Common Use Cases
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Defining U-values for walls, roofs, and windows in building thermal evaluations
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Sizing HVAC systems and estimating heat loss or gain through building envelopes
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Evaluating insulation effectiveness and heat exchanger surfaces using imperial units
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Converting data between regional measurement conventions for engineering analysis
Tips & Best Practices
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Ensure temperature and area units are consistently handled when converting
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Use this conversion only for steady-state heat flow calculations
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Double-check unit selections before converting to avoid errors
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Interpret results within the context of building or HVAC engineering standards
Limitations
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Assumes steady-state conditions and does not apply to transient thermal scenarios
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Does not account for non-uniform temperature distributions
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Conversion validity depends on consistent definitions of units and temperature scales
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Careful unit handling is required to avoid errors due to differences between °C and °F or m² and ft²
Frequently Asked Questions
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What does kilocalorie (IT)/hour/square meter/°C measure?
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It measures the steady heat flow per unit area per degree Celsius temperature difference, indicating heat transfer coefficient in metric units.
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Why convert to Btu (th)/hour/square foot/°F?
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This conversion is useful for working with imperial units commonly used in certain regions for thermal performance and HVAC system calculations.
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Can I use this conversion for transient heat transfer calculations?
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No, the conversion is only valid under steady-state conditions with consistent unit definitions.
Key Terminology
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Kilocalorie (IT)/hour/square meter/°C
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A metric heat transfer coefficient unit measuring steady heat flow per square meter per degree Celsius.
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Btu (th)/hour/square foot/°F
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An imperial heat transfer coefficient unit indicating heat transfer rate per square foot per degree Fahrenheit.
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Heat Transfer Coefficient
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A measure of heat flow per unit area per unit temperature difference across a material or surface.
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U-value
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Thermal transmittance of a building element indicating its heat transfer efficiency.