Responsible use
Engineering Calculation Disclaimer
Clear limits help users understand what these tools can—and cannot—support.
These engineering tools are provided for educational, preliminary evaluation, field verification, and commissioning support. Results depend on the accuracy of user-entered information and the assumptions stated for each calculation. Every colored status and comparison is a screening indicator only; project criteria, contract requirements, applicable codes, manufacturer instructions, measurement uncertainty, and authorized engineering judgment govern. The tools do not replace project-specific engineering analysis or the judgment of a licensed professional engineer.
Appropriate uses
- Educational use and engineering explanation
- Preliminary evaluation and design assistance
- Commissioning verification and field troubleshooting
- Construction coordination and data reduction
These tools do not provide
- A design certification, sealed engineering calculation, or automatic code-compliance decision.
- Project acceptance independent of the contract documents and authorized reviewers.
- Manufacturer-specific selection or performance guarantees.
- Protection from inaccurate measurements, incorrect units, unsuitable assumptions, or omitted system effects.
User responsibilities
Confirm that inputs use compatible units and represent the same operating condition. Review stated assumptions, limitations, sources, and warnings. Use current adopted codes, local amendments, project specifications, approved submittals, manufacturer data, and qualified professional judgment.
Technical review status
The published tools completed automated known-answer and boundary checks, cross-unit verification where applicable, and independent adversarial review. Each calculation remains subject to the stated assumptions, limitations, current source requirements, project criteria, and the user's professional judgment.