What does Btu (th)/second/square foot measure?

It measures the rate of heat transfer per square foot of area using British thermal units (thermochemical) per second, commonly used in Imperial unit contexts.

Why convert to CHU/hour/square foot?

Converting to CHU/hour/square foot facilitates comparing heat flux density values across different unit systems and supports calculations in HVAC and building science.

Can I use this converter for transient heat flux conditions?

The conversion is designed for steady-state conditions; transient or varying conditions may affect accuracy.

How to Convert from Btu (th)/second/square foot to CHU/hour/square foot?

Learn how to convert heat flux density from Btu (th)/second/square foot to CHU/hour/square foot with this easy-to-use online converter. Understand the applications and benefits of these units in HVAC and building science.

Btu (th)/second/square foot

CHU/hour/square foot

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

Btu (th)/second/square foot to CHU/hour/square foot Conversion Table

Btu (th)/second/square foot	CHU/hour/square foot

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 (th)/second/square foot to CHU/hour/square foot Conversion Table
Btu (th)/second/square foot	CHU/hour/square foot

Explore More Heat Flux Density Units Converter

What Is This Tool?

This unit converter allows you to transform heat flux density values from Btu (th)/second/square foot to CHU/hour/square foot. These units measure the rate of heat transfer per unit area and are widely used in engineering, building science, and HVAC contexts.

How to Use This Tool?

Enter the value in Btu (th)/second/square foot that you want to convert.
Select the target unit as CHU/hour/square foot.
Click the convert button to get the equivalent heat flux density in CHU/hour/square foot.
Use the result to apply in HVAC, building-envelope calculations, or thermal system designs.

Key Features

Conversion between specialized heat flux density units used in thermal engineering and building science.
Based on the official conversion rate from Btu (th)/second/square foot to CHU/hour/square foot.
Enables seamless comparison and specification of heat transfer rates across different unit systems.
Supports applications in HVAC design, insulation assessment, and surface heating/cooling equipment sizing.

Examples

1 Btu (th)/second/square foot equals approximately 1998.66 CHU/hour/square foot.
0.5 Btu (th)/second/square foot equals approximately 999.33 CHU/hour/square foot.

Common Use Cases

Specifying heat transfer through building components such as walls, windows, or roofs.
Evaluating and comparing insulation or envelope performance based on heat flux density.
Sizing surface heating and cooling equipment like radiant panels or chilled ceilings in Imperial and CHU-based units.

Tips & Best Practices

Ensure consistent unit definitions when performing conversions to maintain accuracy.
Apply the converter in steady-state heat flux conditions for the best results.
Use converted values to maintain standardization in HVAC and thermal engineering documentation.

Limitations

The conversion assumes steady-state heat flux conditions and consistent unit definitions.
Environmental factors or variations in unit standards can impact conversion accuracy.
Rounding may be necessary due to the large conversion factor.

Frequently Asked Questions

What does Btu (th)/second/square foot measure?: It measures the rate of heat transfer per square foot of area using British thermal units (thermochemical) per second, commonly used in Imperial unit contexts.
Why convert to CHU/hour/square foot?: Converting to CHU/hour/square foot facilitates comparing heat flux density values across different unit systems and supports calculations in HVAC and building science.
Can I use this converter for transient heat flux conditions?: The conversion is designed for steady-state conditions; transient or varying conditions may affect accuracy.

Key Terminology

Btu (th)/second/square foot: A heat flux density unit measuring British thermal units (thermochemical) transferred per second across one square foot, used in Imperial systems.
CHU/hour/square foot: A heat flux density unit representing CHUs of thermal energy transferred per hour across one square foot of area.
Heat flux density: The rate of heat transfer per unit area, indicating how much thermal energy passes through a surface per time.

Quick Knowledge Check

What does Btu (th)/second/square foot represent?

Energy transferred per hour per square foot

Heat transfer rate per second per square foot

Thermal energy accumulated over time

When converting from Btu (th)/second/square foot to CHU/hour/square foot, which is true?

The conversion uses a factor less than 1

The conversion factor is approximately 1998.66

Conversion is not possible between these units

In which field is this conversion most commonly used?

HVAC and building science

Astronomy and space exploration

Marine biology

Share Us

Similar Calculators

Online Temperature Units Converter Online Data Storage Units Converter Online Charge Units Converter Online Permeability Units Converter Online Linear Current Density Units Converter