What does Btu (IT) foot/hour/sq. foot/°F represent?

It is a thermal conductivity unit representing heat flow through a one-foot thick layer of material with a one square foot area and a one degree Fahrenheit temperature difference, measured in Btu per hour.

Why convert to Btu (th) inch/second/sq. foot/°F?

This unit is commonly used in US customary contexts for reporting thermal conductivity and conduction heat-transfer calculations that rely on different Imperial unit conventions.

Can this converter be used for transient thermal analysis?

No, the conversion assumes steady-state conduction and homogeneous materials, so it is not appropriate for transient or anisotropic thermal property evaluations.

Convert Btu (IT) foot/hour/sq. foot/°F to Btu (th) inch/second/sq. foot/°F

Convert thermal conductivity values between Btu (IT) foot/hour/sq. foot/°F and Btu (th) inch/second/sq. foot/°F with this easy-to-use online tool designed for HVAC and building professionals.

Btu (IT) foot/hour/sq. foot/°F

Btu (th) inch/second/sq. foot/°F

Please check your input. It must be a valid numeric value.

Btu (IT) foot/hour/sq. foot/°F to Btu (th) inch/second/sq. foot/°F Conversion Table

Btu (IT) foot/hour/sq. foot/°F	Btu (th) inch/second/sq. foot/°F

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Btu (IT) foot/hour/sq. foot/°F to Btu (th) inch/second/sq. foot/°F Conversion Table
Btu (IT) foot/hour/sq. foot/°F	Btu (th) inch/second/sq. foot/°F

Explore More Thermal Conductivity Units Converter

What Is This Tool?

This converter allows you to change thermal conductivity measurements from Btu (IT) foot/hour/sq. foot/°F to Btu (th) inch/second/sq. foot/°F. It supports accurate unit transformations within the Imperial system relevant to heat transfer and building material analysis.

How to Use This Tool?

Enter the value in Btu (IT) foot/hour/sq. foot/°F you wish to convert
Select the target unit as Btu (th) inch/second/sq. foot/°F
Click the convert button to see the equivalent value
Use the results to support building material evaluations and energy-efficiency analyses

Key Features

Converts thermal conductivity units between two Imperial measurement standards
Supports commonly used units in HVAC and construction engineering
Provides a browser-based platform for quick and accessible conversions
Includes example calculations for user reference

Examples

5 Btu (IT) foot/hour/sq. foot/°F converts to approximately 0.01667782 Btu (th) inch/second/sq. foot/°F
10 Btu (IT) foot/hour/sq. foot/°F converts to approximately 0.033355641 Btu (th) inch/second/sq. foot/°F

Common Use Cases

Specifying thermal conductivity for insulation, brick, or wood in building design
Performing steady-state conduction calculations in HVAC and building simulations
Converting thermal property data between different Imperial units during engineering analyses
Aligning thermal conductivity data with various US customary unit formats for accurate reporting

Tips & Best Practices

Ensure consistent use of unit definitions (IT vs. thermochemical Btu) to avoid confusion
Use the conversion tool alongside steady-state conduction assumptions for best results
Double-check unit selection before applying converted values in technical calculations
Refer to example calculations to understand the conversion nuances

Limitations

Variations in British thermal unit definitions and measurement times create complexities
Conversion accuracy depends on interpreting units correctly and understanding physical context
Not suitable for transient thermal conditions or materials with anisotropic properties
Assumes homogeneous materials and steady-state heat transfer conditions

Frequently Asked Questions

What does Btu (IT) foot/hour/sq. foot/°F represent?: It is a thermal conductivity unit representing heat flow through a one-foot thick layer of material with a one square foot area and a one degree Fahrenheit temperature difference, measured in Btu per hour.
Why convert to Btu (th) inch/second/sq. foot/°F?: This unit is commonly used in US customary contexts for reporting thermal conductivity and conduction heat-transfer calculations that rely on different Imperial unit conventions.
Can this converter be used for transient thermal analysis?: No, the conversion assumes steady-state conduction and homogeneous materials, so it is not appropriate for transient or anisotropic thermal property evaluations.

Key Terminology

Btu (IT) foot/hour/sq. foot/°F: An Imperial thermal conductivity unit measuring heat flow through a 1-foot thick material for one hour with a 1°F difference.
Btu (th) inch/second/sq. foot/°F: An Imperial thermal conductivity unit defined by heat transferred per second through a 1-inch thick material with a 1°F difference.
Thermal Conductivity: A material property indicating its ability to conduct heat under steady-state conditions.

Quick Knowledge Check

What does Btu (IT) foot/hour/sq. foot/°F measure?

Heat capacity of a material

Thermal conductivity describing steady heat flow

Temperature gradient in Fahrenheit

Which unit is used for heat transferred per second through a 1-inch thickness?

Btu (IT) foot/hour/sq. foot/°F

Btu (th) inch/second/sq. foot/°F

Watt per meter kelvin

What is a key limitation of this conversion?

Applies to anisotropic materials

Depends on steady-state conduction assumptions

Works for transient thermal analyses

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