What does Btu (IT)/minute/square foot measure?

It measures the rate of heat transfer per unit area using the International Table British thermal unit over one minute through a square foot.

When should I use Btu (th)/second/square inch?

This unit is ideal for quantifying very high, localized heat fluxes in fire testing, welding, and industrial furnace applications.

Are the two BTU units identical?

No, Btu (IT) and Btu (th) refer to slightly different British thermal unit standards used in varying engineering contexts.

How to Convert from Btu (IT)/minute/square foot to Btu (th)/second/square inch?

Learn to convert heat flux density from Btu (IT) per minute per square foot to Btu (th) per second per square inch using this easy-to-use unit converter. Understand uses, features, and examples for thermal and HVAC applications.

Btu (IT)/minute/square foot

Btu (th)/second/square inch

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

Btu (IT)/minute/square foot to Btu (th)/second/square inch Conversion Table

Btu (IT)/minute/square foot	Btu (th)/second/square inch

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)/minute/square foot to Btu (th)/second/square inch Conversion Table
Btu (IT)/minute/square foot	Btu (th)/second/square inch

Explore More Heat Flux Density Units Converter

What Is This Tool?

This tool converts heat flux density values between Btu (IT)/minute/square foot and Btu (th)/second/square inch units, facilitating consistent measurement across various thermal, HVAC, fire testing, and industrial engineering applications.

How to Use This Tool?

Enter the value measured in Btu (IT)/minute/square foot.
Select the source unit as Btu (IT)/minute/square foot and target unit as Btu (th)/second/square inch.
Click convert to obtain the equivalent heat flux density in the target unit.
Review the results and apply them to your thermal or fire-protection engineering calculations.

Key Features

Converts between two specific heat flux density units used in thermal and fire-protection engineering.
Provides accurate results based on the defined conversion rate.
Supports practical use in HVAC, fire testing, welding, and furnace applications.
Browser-based and easy to use for quick unit translations.
Includes examples for clear understanding of the conversion process.

Examples

10 Btu (IT)/minute/square foot equals 0.001158182 Btu (th)/second/square inch.
100 Btu (IT)/minute/square foot equals 0.01158182 Btu (th)/second/square inch.

Common Use Cases

Specifying heat transfer rates for building envelopes and HVAC system components.
Quantifying heat fluxes in fire testing and fire-protection engineering.
Measuring high-intensity heat loads in welding, plasma torches, and propulsion plume experiments.
Specifying heat input on small surface areas in industrial furnace and burner testing.

Tips & Best Practices

Ensure you understand the different British thermal unit references when converting.
Consider the difference in time scales (minute vs. second) and area scales (square foot vs. square inch).
Verify unit compatibility when integrating this conversion with other metric-based calculations.
Use this conversion to translate HVAC data into high-intensity heat flux contexts accurately.

Limitations

Conversion involves two distinct British thermal unit standards which slightly differ.
Unit differences in time and area scales require careful attention.
Not based on SI units, so further conversion may be necessary for metric system integration.

Frequently Asked Questions

What does Btu (IT)/minute/square foot measure?: It measures the rate of heat transfer per unit area using the International Table British thermal unit over one minute through a square foot.
When should I use Btu (th)/second/square inch?: This unit is ideal for quantifying very high, localized heat fluxes in fire testing, welding, and industrial furnace applications.
Are the two BTU units identical?: No, Btu (IT) and Btu (th) refer to slightly different British thermal unit standards used in varying engineering contexts.

Key Terminology

Btu (IT)/minute/square foot: A unit measuring heat flux density using the International Table British thermal unit transferred per minute through one square foot.
Btu (th)/second/square inch: A unit representing heat flux density defined by the thermal British thermal unit transferred per second through a one square inch area.
Heat flux density: The rate of heat energy transfer per unit surface area.

Quick Knowledge Check

Which time units differ between the two heat flux density units?

Second and hour

Minute and second

Minute and hour

What is a common application for Btu (th)/second/square inch?

HVAC load calculation

Fire testing and fire protection

Solar heat gain assessment

Why should care be taken when converting these units?

Because they are metric

Because BTU references and scales differ

Because they are SI units

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