Free Engineering Knowledge
MEP Guides & Articles
Practical guides, calculations and checklists written by experienced MEP site engineers.
❄️
HVAC Systems
Air handling, chillers, ductwork, CFM calculations and maintenance guides.
Read guides →⚡
Electrical Systems
Load calculations, capacitor banks, LV panels and power quality guides.
Read guides →🔧
Mechanical Systems
Pump head calculation, fire pump systems, pressure systems and pipe sizing.
Read guides →🔩
Plumbing Systems
Pipe selection, drainage systems and building water supply design.
Read guides →🏢
Facilities Management
Planning, budgeting, OPEX vs CAPEX, SOPs, KPIs and FM strategy guides.
Read guides →🧰
Free MEP & FM Tools
Calculators, Checklists generators — AC tonnage, PPM planning, load calculations and more.
Explore tools →All Guides
All MEP and FM related guides
Electrical Preventive Maintenance Checklist for Commercial Buildings Aug 4, 2026 - The generator that wouldn't start during a power cut. The emergency lighting that failed the annual test because nobody checked…
LV Panel Maintenance Checklist: Complete PPM Guide for MDB, SMDB and DB Aug 1, 2026 - The building has been running for three years. The main distribution board has never been opened for inspection. Nobody has…
FM Reports: Types, Content, and What Every FM Manager Needs to Know Jul 28, 2026 - Ask ten people in a facilities management team what reports they produce and you'll get ten different answers. Some will…
AHU Preventive Maintenance Checklist: Step-by-Step PPM Guide for Air Handling Units Jul 25, 2026 - The AHU that nobody maintains properly is the one that fails in August. Not a dramatic failure — usually something…
CAFM vs CMMS: What’s the Difference and Which One Does Your FM Team Actually Need? Jul 21, 2026 - You've been told you need a system to manage your facilities. One vendor is selling you a CMMS. Another is…
Legionella Risk Assessment in Buildings: A Complete Guide for FM Teams Jul 18, 2026 - In 2012, a cooling tower at a hotel in Edinburgh infected 35 people with Legionnaires' disease. Two of them died.…
Chiller Troubleshooting Guide: Common Faults, Causes and How to Fix Them Jul 18, 2026 - The chiller trips at 2pm on the hottest day of the year. Building occupants are already calling. The BMS is…
Building Handover Checklist for MEP Systems: The Ultimate 10-Step FM Guide to Avoiding Costly Mistakes Jul 14, 2026 - The moment you sign off on a building handover is the moment everything becomes your problem. Whatever the contractor missed,…
FCU Maintenance Checklist: The Complete PPM Guide for Fan Coil Units Jul 11, 2026 - A complaint about a room that's not cooling properly is one of the most common calls a facilities team gets.…
Pipe Sizing for Plumbing Systems: A Step-by-Step Guide for Engineers and Technicians Jul 7, 2026 - Get pipe sizing wrong and you'll know about it quickly. Low pressure at the top-floor shower. Noisy pipes banging behind…
Plumbing Preventive Maintenance Checklist: A Complete Guide for FM Teams Jul 4, 2026 - A burst pipe at 3am. A blocked drain that backs up into a ground-floor toilet the day before a client…
Cooling Tower Troubleshooting Guide: Common Problems, Causes, and Solutions Jun 30, 2026 - Cooling towers play a critical role in HVAC systems, industrial plants, commercial buildings, hospitals, airports, and data centers. Their primary…
Root Cause Analysis (RCA) in Facilities Management: Complete Guide with Methods, Examples, and Best Practices Jun 27, 2026 - In Facilities Management, equipment failures, repeated breakdowns, tenant complaints, energy inefficiencies, and operational disruptions can significantly impact building performance and…
Hospital Operation Theatre MEP Requirements — Complete Engineering Guide Jun 24, 2026 - Operation Theatres (OT) are among the most technically demanding spaces in any building. Every MEP system inside an OT must…
How to Size Electrical Cables for Buildings – Complete Cable Sizing Guide with Examples Jun 23, 2026 - Electrical cable sizing is one of the most critical aspects of electrical system design. Whether you are designing a commercial…
Chiller Low Delta T Syndrome – Causes, Effects, Troubleshooting and Solutions Jun 20, 2026 - In modern commercial buildings, hospitals, malls, airports, and industrial facilities, chillers are among the most energy-intensive pieces of equipment. A…
Facility Management KPI Explained – Complete Guide for Facilities Management. Jun 20, 2026 - In modern facility management, performance cannot be managed by guesswork. Every building system, maintenance activity, energy consumption pattern, and operational…
Electrical Load Calculation Explained – A Complete Guide Jun 18, 2026 - Electrical load calculation is one of the most important aspects of electrical engineering and facility management. Whether you are designing…
Pump Head Calculation – Step-by-Step Guide (Practical HVAC & Plumbing Engineering Approach) Jun 15, 2026 - In building services engineering, one of the most critical design and troubleshooting parameters is pump head calculation. Whether you are…
What is Capacitor Bank, Harmonics, and Harmonic Filter System in Electrical Systems Complete Guide Jun 11, 2026 - Electrical power quality is one of the most critical aspects in modern buildings, industries, hospitals, data centers, and commercial facilities.…
Basics of Electrical System in Buildings Complete Guide for Engineers and Facility Managers May 29, 2026 - Electrical systems are the backbone of every modern building. Without electricity no system can operate properly including HVAC systems lighting…
How to Calculate CFM in HVAC Systems – Complete Practical Guide May 14, 2026 - In HVAC systems, one of the most important parameters for proper system design, troubleshooting, and performance is CFM (Cubic Feet…
Reactive vs Preventive vs Predictive Maintenance in Facilities Management – Complete Guide for Engineers & Managers May 9, 2026 - Maintenance is the backbone of facilities management. Every building—whether residential, commercial, industrial, or mixed-use—relies on properly functioning systems such as…
OPEX vs CAPEX in Facility Management – Complete Guide for Engineers & Managers May 5, 2026 - In facilities management, controlling cost while maintaining system reliability is one of the most critical responsibilities of engineers, supervisors, and…
Daily, Weekly, and Monthly Duties of a Facilities Engineer Apr 28, 2026 - Practical Task Breakdown with Checklists and Site-Based Responsibilities Facilities engineering is one of the most important functions in building operations,…
Step-by-Step AHU Maintenance Procedure: A Complete Guide for Facilities Management Jan 19, 2026 - Air Handling Units (AHUs) are a critical component of any Heating, Ventilation, and Air Conditioning system in residential, commercial, and…
SOP in Facilities Management: What It Is, Why It Matters, and How to Write One That Works Jan 12, 2026 - Picture this: a new technician joins your team mid-week. Your senior engineer is on leave. A chiller alarm fires at…
10 Signs Your AC System Needs Servicing or Repair — HVAC Engineer Guide Jan 7, 2026 - Air conditioning systems give clear warning signs before they fail completely. Recognising these signs early allows facilities managers and HVAC…
Fire Pump Room Operation and Weekly Testing Procedure Jan 3, 2026 - Fire protection systems are a critical life safety requirement in all residential, commercial, industrial, and mixed‑use buildings. At the heart…
LV Panel, MDB, SMDB and DB Explained — Building Electrical Distribution Guide Jan 1, 2026 - Every commercial building has a hierarchy of electrical distribution panels that take power from the utility supply and distribute it…
Plumbing Systems Explained for Facilities Professionals Dec 27, 2025 - Plumbing systems are one of the most critical parts of any building. From supplying clean water to safely removing wastewater,…
Handling Client Complaints in Facilities Management: A Complete Practical Guide Dec 23, 2025 - Client complaints are an inevitable part of Facilities Management (FM). No matter how robust your systems, issues will arise —…
What Is Facilities Management? Complete Guide for FM Professionals Dec 20, 2025 - A regional retail chain's operations director once summed up her facilities team's job in one line: "Nobody notices FM until…
HVAC Preventive Maintenance — Complete Checklist & Guide for Engineers Dec 16, 2025 - HVAC systems are the largest energy consumers and among the most critical systems in any commercial building. When properly maintained,…
Types of HVAC Systems in Buildings — Complete Guide for Engineers Dec 13, 2025 - Selecting the right type of HVAC system is one of the most important decisions in any building design project. The…
What Is HVAC? Complete Guide for Engineers & Building Professionals Dec 11, 2025 - HVAC stands for Heating, Ventilation and Air Conditioning. It is the technology and engineering discipline responsible for providing thermal comfort,…
