Blog Articles, Online Courses and Consultation Services.

the World
about HVAC

I embarked on a mission to educate millions of homeowners and engineers about heating, ventilation and air conditioning (HVAC). I vision an energy-efficiency future where all HVAC systems are well designed, well installed, well operated and well maintained.

Blog Articles

I wrote more than 300 blog articles on this website and filmed several videos on YouTube as free resources.

Online Courses

I created online courses to teach HVAC engineers on specific skills from beginner to advance level.

Consultation Services

I provide consultation and design services professionally to individuals as well as companies.

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Online Courses​

These courses are self-paced which means you can learn at anytime at anywhere you want, giving you full control of your time.


Chilled Water System Design Course

A TRUE design course that take you through the process of designing a chilled water system using a modern 32-storey high-rise building as the sample project.



RTS Cooling Load Calculation Course

Learn how to perform cooling load calculation using the Radiant Time Series method under 90 minutes through a step-by-step process with an excel calculator.



HVAC Beginner

Turn yourself into an HVAC competent in 10 days with the fundamentals of air conditioning, working principles and basic design skills.



Engineers Enrolled


Courses Available


Online Lessons

Digital Downloads

Ebooks, templates, charts and excel calculators are very handy in certain times. So, I made some of my personal tools available as digital downloads for you.

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Improve Your HVAC Skills Today!

Enroll in my online courses, download my digital tools or read my free blog articles to learn more about HVAC today.