October 25, 2026
Worked example of an AutoCAD duct takeoff to Excel, grouping straight runs by size, converting units and reconciling straight area...
Welcome to the HVAC section of BuildMEP.com – your go-to resource for practical knowledge, tools, and guidelines related to Heating, Ventilation, and Air Conditioning systems in the MEP industry.
This category is designed to support MEP engineers, HVAC technicians, consultants, and project managers with a wide range of technical content and field-ready solutions. Whether you’re involved in design, installation, commissioning, or maintenance, you’ll find helpful resources to streamline your work and stay updated with the latest standards.
Worked example of an AutoCAD duct takeoff to Excel, grouping straight runs by size, converting units and reconciling straight area...
On an FCU control panel the speed you select and the speed it reports are different points. What each field...
Free AutoCAD LISP to count blocks by clicking one instance — no typing names. Unlike BCOUNT, the result stays permanently...
Free AutoCAD LISP that counts every block in a selection, groups them by name or layer, handles dynamic blocks and...
BuildMEP HVAC design guide VRF or chilled water is one of the first big decisions on a commercial or high-rise...
BuildMEP fixed gas-detection field guide Use this guide to diagnose unreliable combustible-gas detectors and to verify the complete path from...
A practical review guide for commercial-kitchen pollution control units: treatment stages, airflow and pressure checks, service access, fire and control...
BuildMEP critical-facility maintenance guide This guide shows how to inspect and functionally test an FCU condensate system, how to add...
A practical engineering guide to selecting and fabricating pre-insulated HVAC ductwork for renovation projects. Covers system approval, PID vs insulated...
Check rectangular-duct elbows, transitions and offsets before fabrication. Define the radius correctly, calculate the required transition length, lay out the...
Engineering tools, HVAC guides, calculators, and practical MEP resources.
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