Your Ultimate Guide for MEP & Facilities Management.
Practical guides, calculations and checklists for HVAC, Electrical, Plumbing and Facilities Management — completely free.
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Expert MEP guides, calculations and engineering references — free for engineers and FM professionals
HVAC Systems
HVAC design guides covering air handling units, chillers, ductwork sizing, CFM calculations, cooling load analysis and energy-efficient system design.
Read HVAC guides →Mechanical Systems
Mechanical engineering guides for pumping systems, pipe sizing, heat exchangers, boilers, pressure vessels, steam systems and thermal insulation.
Read Mechanical Guides →Electrical Systems
Electrical engineering references for load calculations, LV panel design, power factor correction, capacitor banks, earthing systems and energy metering.
Read Electrical Guides →Plumbing Systems
Plumbing design guides for domestic water supply, drainage systems, pipe material selection, booster pumps and hot water storage systems.
Read Plumbing Guides →Facilities Management
FM strategy guides covering PPM planning, OPEX vs CAPEX budgeting, KPI frameworks, SFG20 maintenance schedules and building asset management.
Read FM guides →Free MEP & FM Tools FREE
Online engineering calculators for AC tonnage, CFM, pump head, duct sizing and electrical load — plus SOP generator and PPM checklist builder.
Use free tools →MEP & FM Glossary 150+
Searchable A-Z glossary of MEP and Facilities Management terms — HVAC, electrical, plumbing and FM definitions explained in plain English.
Browse Glossary →Latest Guides & Articles
Real-world MEP engineering knowledge written by experienced Engineers
Electrical Preventive Maintenance Checklist for Commercial Buildings - 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 - 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 - 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 - 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? - 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 - In 2012, a cooling tower at a hotel in Edinburgh infected 35 people with Legionnaires' disease. Two of them died.… Have a Topic Suggestion?
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Free engineering knowledge for MEP and facilities management professionals worldwide.