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How to Convert from Btu (IT)/hour/square foot/°F to Watt/square meter/°C
Learn the method to convert heat transfer coefficient units from Btu (International Table) per hour per square foot per degree Fahrenheit to watt per square meter per degree Celsius, essential for energy modeling and HVAC calculations.
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Btu (IT)/hour/square foot/%b0F to Watt/square meter/%b0C Conversion Table
| Btu (IT)/hour/square foot/%b0F | Watt/square meter/%b0C |
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Custom Unit Conversion Table Generator – Instant Printable Conversion Tables
Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.
Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.
Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.
| Btu (IT)/hour/square foot/%b0F | Watt/square meter/%b0C |
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What Is This Tool?
This unit converter translates heat transfer coefficients from Btu (IT)/hour/square foot/°F, an imperial measurement, into watt/square meter/°C, a metric unit. It helps users understand and compare thermal conductivity and heat flow between two unit systems common in building performance and HVAC engineering.
How to Use This Tool?
- Enter the heat transfer coefficient value in Btu (IT)/hour/square foot/°F
- Select the input unit as Btu (IT)/hour/square foot/°F
- Choose the output unit as watt/square meter/°C
- Click the convert button to receive the result in watt/square meter/°C
- Use the converted value for energy modeling, HVAC design, or thermal analysis
Key Features
- Converts heat transfer coefficients between imperial and metric units
- Uses a precise conversion rate of 1 Btu (IT)/hour/square foot/°F to 5.6782633411 watt/square meter/°C
- Supports calculations for building envelope, HVAC load sizing, and thermal performance evaluation
- Browser-based and user-friendly interface for quick conversions
- Facilitates international standardization of energy and thermal measurements
Examples
- 2 Btu (IT)/hour/square foot/°F equals 11.3565266822 watt/square meter/°C
- 0.5 Btu (IT)/hour/square foot/°F equals 2.83913167055 watt/square meter/°C
Common Use Cases
- Specifying U‑values for windows, walls, and roofs in building energy codes
- Calculating heating and cooling loads for HVAC equipment sizing
- Evaluating insulation materials and assembled building component thermal performance
- Determining convective heat transfer rates from surfaces like radiators and aircraft parts
- Sizing heat exchangers and performing HVAC heat‑load calculations
Tips & Best Practices
- Ensure the input value represents steady-state heat transfer conditions
- Confirm uniform temperature difference across surfaces for accurate conversion
- Use the tool to translate U‑values between imperial and metric standards correctly
- Apply converted values within their intended context such as building codes or HVAC design
- Combine this conversion with thorough thermal analysis when dealing with transient or complex cases
Limitations
- Conversion presumes steady-state conditions and linear temperature gradients
- Non-uniform or transient temperature distributions may require advanced methods
- The tool only converts specified unit pairs and does not handle other units or scales
- Temperature scale differences are accounted for, but complex real-world scenarios might need additional considerations
Frequently Asked Questions
- What does Btu (IT)/hour/square foot/°F measure?
- It measures the rate of heat flow per hour through one square foot of area for every degree Fahrenheit temperature difference, commonly used in imperial units for overall heat transfer coefficients.
- Why convert Btu (IT)/hour/square foot/°F to watt/square meter/°C?
- Converting to watt/square meter/°C allows for consistent use of metric units in international energy modeling, HVAC design, and thermal performance evaluations.
- Can this conversion be applied in transient thermal conditions?
- No, this conversion assumes steady-state and linear temperature difference scenarios; transient conditions require more detailed analysis.
Key Terminology
- Heat Transfer Coefficient
- A value that quantifies the rate of heat transfer per unit area per unit temperature difference between two surfaces.
- Btu (IT)/hour/square foot/°F
- An imperial unit representing heat flow per hour through one square foot per degree Fahrenheit difference, commonly used as the overall heat transfer coefficient or U-value.
- Watt/square meter/°C
- A metric unit measuring heat transfer rate in watts per square meter per degree Celsius, used to express convective or thermal conductance values.
- U-value
- The overall heat transfer coefficient representing the ability of a building element to conduct heat.