Engineering Toolbox 4.0

Engineering Toolbox by Trane is a practical digital companion for HVAC and building-systems professionals. It brings together trusted Trane engineering guidance, design aids, and quick calculators in one easy-to-use resource, helping you verify assumptions, size components, and document decisions with confidence.

Key features:

• Quick calculators for common HVAC tasks, such as airflow checks, psychrometric relationships, heat transfer fundamentals, and basic duct and pipe sizing.
• Curated reference data, including properties of air and water, refrigerant basics, engineering constants, fan and pump fundamentals, and sound considerations.
• Built-in unit conversions and handy lookups to speed up takeoffs, submittals, and field troubleshooting.
• Clear explanations and application tips aligned with Trane engineering practices.

Designed for:

• Mechanical engineers, HVAC designers, and energy modelers
• Contractors, commissioning agents, and building operators
• Students and educators in HVAC/R programs

Benefit from streamlined workflows, consistent calculations across teams, and accessible Trane expertise that supports accurate, timely design and analysis.

Engineering Toolbox is developed by Trane. The most popular versions of this product among our users are: 1.0 and 4.0. The name of the program executable file is Toolbox.exe.