or join the Pro Plan at $20/mo or $220/yr.
The course starts with an introduction to the sample project including the architectural layout, floor area and room-by-room usage details to prepare for the core lessons. An excel template will be given to keep track of the design progress.
Any duct design starts with knowing how much airflow to deliver. In this section, you'll learn how to calculate the supply airflow needed for each room. You'll learn how much outdoor air each room receives and check if it meets the requirement. You'll learn how to create positive/negative pressure.
The key to a good duct design starts with a good diffuser design. In this section, you'll learn important terminologies that help you select a good diffuser. You'll learn how to determine the optimal number of diffuser based on the throw distance and noise level. You'll learn which type of diffuser is best for your applications.
Return grille plays an important part in room air circulation. In this section, you'll learn about air stratification and the best location to put the return grille. You'll learn how to size a return grille and how return grilles can help improve the thermal comfort in a room.
Before going into duct layout design, it is crucial to understand the fundamentals of pressure loss in duct. In this section, you'll learn how to calculate pressure loss in a duct system and thus, understand why we size ducts in a certain way, and why certain duct fittings are used.
This is the core section of this course. You'll learn the initial duct route planning and how to overcome the obstacle when transforming from concept to actual layout. You'll learn how to size the duct, section by section, on AutoCAD drawing. Along the process, you'll learn how ducts can be simplified/optimized to reduce cost and improve coordination.
A good duct design performs poorly without taking into consideration the air balance and how to actually achieving the design flow. In this section, you'll learn how to design the damper system for airflow control. You'll learn about the concept of design for air balancing so that the intended airflow can be properly balanced and delivered to each and every room.
As the final section of the course, you'll be invited take a self-assessment test to check how much you have taken away from this course. A certificate of completion will be given to you for record purposes.
(Included)
This course contains multiple pre-recorded videos that are mostly 2-6 minutes long.
(Included)
Duct sizing tools, charts and other resources are available for download in the lessons.
Simplicity and actionable result are my principles in teaching.
Tutorial Style
I'll walk you through the FULL process of a complete duct layout design, where you can replicate and produce your own duct layout drawing.
Rare Insights
I'll show you details that other designers/courses will NOT tell you. Only hands-on people are aware of it. Leverage on these details to differentiate yourself.
Behind the Scene
I'll show you my thought process. How to come out a concept layout and gradually turn into a working layout after a few iterations to simplify and save cost.
Top 3 benefits of taking this course.
Able to design a complete duct layout by yourself. Work efficiently and deliver high-quality duct layout drawings.
Know what/how to review a duct layout drawing. Recommend changes based on recognized engineering standards.
Offer a duct design service to your client. Turn your business into design and build. Propose value added design.
These are the backbone that supporting the Duct Design Course.
Course Format
Here is what you can do in the course:
Jump to specific lessons using the Navigation Menu.
Pause/rewind the videos when needed.
Speed up or slow down the video pace as desired.
Reduce video quality if internet connection is weak.
English subtitles for better understanding.
Q&A under each lesson for content-specific discussion.
How to beat AI?
Duct Design is something artificial intelligence (AI) can't replicate (at least in the foreseeable future). It makes mastering this skill extremely valuable. Having deep duct design knowledge allows you to:
Spot potential problems before it happens, thus provide huge value to your client.
Defend your design with recognized engineering standards when challenged.
Explain every aspects of a duct system, increasing your perceived value/professionalism.
Create business opportunity; offer freelance duct design services, provide design and build services.
Differentiate yourself from others, especially AI tools.
Due to systemization, many people do duct design by referencing/copying and pasting from previous projects. Consequently, many people don't have the chance to learn how to design from scratch. Thus, when challenged, they often unable to justify and yield to the client's requests, which can lead to problems like low airflow, insufficient cooling and noise issues.
Therefore, acquiring the fundamentals of Duct Design makes you stand out from the crowd, gaining benefits beyond just knowing how to design a duct system.
Sign up the course today!
or join the Pro Plan at $20/mo or $220/yr.
This is an online course with pre-recorded videos that teach you how to design a duct system.
You'll be able to design a duct system from scratch. Understand key duct design aspects (achitect, exam prep). Produce a duct layout drawing for your work (consulting firm, commissioning specialist). Have the ability to review a duct layout drawing (shop drawing review, supervising). Or, provide a duct design service for your clients (business opportunity).
This course is based on ASHRAE Handbook of Fundamental, under Duct Design chapter for key lessons such as pressure loss calculation and duct sizing. SMACNA standards also come into play in pressure loss calculation. PRICE Engineer's Handbook is referred for air distribution design. On-field experiences also contribute to this course.
Compared to other online courses, traditional seminars and trainings, this course is more engaging in the sense that it has faster pace (no boring talk, straight to the point), real world examples, clean animated visual (no messy slides). All these make learn much more effective and applicable.
Yes, you get immediate access to all lessons upon successful payment.
This course will be accessible from 1st April 2026 (GMT+08) onwards. From that day onwards, you can access this course anytime you want.
Click enroll now, enter your personal details and choose your payment method.
Pro Plan is a membership plan where you pay every month (or every year) to gain access to online courses and materials.
Yes, you'll be given a certificate of completion upon finishing this course.
Yes, this course is repeatable (like how you watch a YouTube video). You can jump forward, scroll back, repeat the videos/lessons as many times as you want. No time limit or watch count.
Yes, you can chat or email me (yu.cz@aircondlounge.com) directly with your questions. You can also start a discussion within the course or put your question in the lesson comment for others to join the discussion.
aircondlounge is a member of Stripe Climate. Your purchase will support the clause.