What Is This Tool?
This unit converter transforms heat transfer coefficients measured in Btu (th)/second/square foot/°F into CHU/hour/square foot/°C. It helps translate imperial-based heat transfer values into equivalent metric-based units, facilitating thermal performance comparisons and energy analysis.
How to Use This Tool?
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Enter the value of the heat transfer coefficient in Btu (th)/second/square foot/°F
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Select the input unit as Btu (th)/second/square foot/°F and the output unit as CHU/hour/square foot/°C
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Submit the input to get the converted value in CHU/hour/square foot/°C
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Use the result to analyze or compare thermal performance in metric units
Key Features
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Converts Btu (th)/second/square foot/°F to CHU/hour/square foot/°C seamlessly
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Supports heat transfer coefficients for building envelope and HVAC calculations
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Provides unit conversion suitable for comparing insulation and thermal performance
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Browser-based and simple to use without additional software
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Uses a precise conversion factor for accurate translation between units
Examples
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2 Btu (th)/second/square foot/°F equals approximately 7195.18 CHU/hour/square foot/°C
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0.5 Btu (th)/second/square foot/°F equals approximately 1798.80 CHU/hour/square foot/°C
Common Use Cases
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Estimating convective or conductive heat flux for building envelopes using imperial units
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Sizing HVAC equipment and performing heating or cooling load calculations expressed in Btu and ft²
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Assessing surface performance of heat exchangers or heating/cooling surfaces specified in imperial units
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Comparing thermal efficiency of walls, windows, and roofs in metric units for building design
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Calculating heat loss or gain during energy modeling and insulation performance evaluations
Tips & Best Practices
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Ensure steady-state heat transfer conditions when applying the conversion
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Double-check unit selections before converting to avoid errors
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Use the converted values primarily for comparison and energy modeling purposes
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Be mindful of time and temperature unit differences when interpreting results
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Account for potential rounding effects due to the large conversion factor
Limitations
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The conversion assumes steady-state conditions and does not consider transient thermal effects
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Large conversion factors may introduce rounding discrepancies
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Differences in time and temperature units require cautious interpretation when comparing values
Frequently Asked Questions
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What does 1 Btu (th)/second/square foot/°F represent?
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It quantifies the rate of heat transfer per unit area and per degree Fahrenheit, specifically energy in Btu (thermal) per second through one square foot.
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Why convert to CHU/hour/square foot/°C?
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Converting to CHU/hour/square foot/°C helps translate imperial heat transfer coefficients into metric units, making it easier to compare thermal performance and perform energy modeling.
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Are there limitations to using this conversion?
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Yes, the conversion assumes steady-state heat transfer and may have rounding errors. Differences in units of time and temperature need careful attention.
Key Terminology
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Btu (th)/second/square foot/°F
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A heat transfer coefficient measuring energy transfer per second across a square foot area per degree Fahrenheit temperature difference, used in imperial units.
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CHU/hour/square foot/°C
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A heat transfer coefficient representing heat flow rate per hour across a square foot area per degree Celsius temperature difference, used for thermal performance evaluation.
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Heat Transfer Coefficient
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A value that quantifies the rate of thermal energy transfer through a material or surface per unit area and temperature difference.