If you're looking to learn how to build an HVAC duct system, this is for you!
Hey there! I’m Erick, and today I want to show you how to design an HVAC duct system using galvanized steel. If you want to have your own heating or cooling system at home with an HVAC duct setup, this option is perfect for you. Let’s dive into what makes it ideal and how you can start building your own HVAC duct system!
Galvanized steel is a modular, high-strength building material that’s as durable as it is versatile, making it ideal for constructing HVAC duct systems. One of its biggest advantages is its robust, corrosion-resistant structure, perfect for withstanding the constant airflow and temperature fluctuations found in climate control systems. Additionally, thanks to the adaptability of galvanized steel, you can easily adjust the size and layout of the ducts to fit the needs of your space. This material is designed to connect in a modular way, so it’s somewhat like building with an advanced set of blocks. Each piece can be cut, aligned, and secured, allowing you to design a duct system that fits your exact specifications.
Before you start, I recommend planning your setup. Think about the space you have, the specific equipment you’ll be installing, and your ideal layout. Grab a tape measure and calculate the dimensions you’ll need for comfort and control, including the space dimensions and the height of the walls.
Once you have a design in mind, gather your essential tools: tape measure, bubble level, utility knife or industrial cutter, adjustable wrench, screwdrivers, electric drill, metal scissors, duct tape, and duct clamps and supports.
Build the Base of the HVAC Duct System: Start with the base of the duct system. This is a crucial step, as it serves as the foundation for the entire installation. Make sure to measure and position the main ducts precisely, ensuring they are aligned and level. Check all connections and fastenings; a stable base is essential for optimal airflow and to avoid future issues, such as noise or leaks.
Assemble the Ducts and Connections: With the base done, proceed with installing the ducts and their connections. It is important to choose the right type of ducts (metal, flexible, etc.) and make sure each section fits perfectly. Align the ducts for efficient airflow and ensure there are no blockages or bends that could affect air circulation. Use clamps and supports to securely fix the ducts to the walls or beams.
Install the Ventilation Units and Extractors: Now, it's time to install the ventilation units, extractors, and diffusers. Measure and place these elements in strategic locations to ensure even air distribution. Make sure the diffusers are securely mounted and adjust their angle to suit the space's needs. Remember that the placement and angle of these elements will directly impact the system's efficiency.
Check Stability and Reinforce Where Needed: Once all the ducts and main components are installed, check each connection and make sure there are no air leaks. Reinforcing connections and applying high-quality sealants where necessary is vital to maintain system efficiency. Verify that the entire system is secure and there are no weak points that could compromise HVAC performance. If needed, add additional supports to ensure the ducts do not shift over time.
After completing the installation of your HVAC duct system, perform a functionality test. Turn on the climate control system and make sure the airflow is adequate in all areas. Adjust the position of the ducts if necessary, checking for any obstructions or air leaks. Galvanized steel makes modifications easy, so take advantage of its modularity to make fine adjustments and optimize the air distribution. Small changes in the direction or size of the ducts can improve the system's efficiency and performance.
One of the best advantages of a well-designed HVAC duct system is its ability to adapt to future expansions or modifications. Need to add more air outlets or change the location of the diffusers? No problem. If you decide to upgrade the ventilation unit or improve air distribution in the future, you can modify the system without needing to rebuild everything. This flexibility allows you to evolve the HVAC system according to the needs of your space or energy efficiency.
Installing an HVAC duct system correctly is an effective way to ensure a comfortable and efficient environment. Follow these steps, be patient at each stage of the installation, and soon you'll have a system that provides optimal airflow and fits your needs perfectly. Enjoy the installation process and take advantage of the benefits of a well-designed system!
Is this a downloadable app?
No! It all works on the browser. It works on your phone as well as your computer!
Is it free?
Yes the app is 100% free.
Can I save my design?
Yes! You can save your design in your account.
Can I share my design?
Yes! You'll have a unique URL for every design you save which you can send to anyone! They can then see or clone the design. They cannot edit your design. You can also delete it whenever you'd like.
What materials do you support?
Crafty currently have 1000 parts across aluminum 8020, steel, wood, HVAC and PVC! Let us know if we're missing a part.
Where did the idea for this app come from?
I spent a year building an off grid farm and knew nothing about construction / plumbing / electrical work…
I saw that most people had to go the hardware store multiple times and many times they weren’t able to finish their work that day because the vendor didn’t have the part. So I thought if you can design your project beforehand, it will allow us to check for compatibility while you’re designing and then be able to send you all the parts! Much easier!
Can I connect PVC to wood, t-slot / aluminum 8020?
Yes. There are transition parts that allow you to connect PVC to wood or wood to aluminum 8020. If there is interest, we will start adding parts like motors and electrical components as well.
The idea for Crafty is to be a place where you can design your entire project with all of its components so when you want to get to building, all you need to do is order!
Do you have everything in stock?
No, not everything. We currently have about half of the parts and our goal is to little by little add more.
For the parts we don't have, we will give you a link for the provider that you can buy it from. Hopefully as the app gets more traction, we will start to carry more and more items so we can ship you everything in one set.
How do you deal with long and heavy parts (like 2x4s)?
When you have parts longer than 36" or of a certain kind (like lumber beyond a certain WxH), we just give you the dimension / exact length for you to go buy that at your local store. It doesn't make much sense to ship a 2x4 :)
Are you going to add more parts?
Yes. This current set of parts that you see on the app is our initial set. We just finished this version in late April 2023 so we’re listening to the feedback we get and will evolve the app to be the best that it can be for all of you!
Why not just use CAD?
You can! If you have all the parts downloaded already and are an expert in CAD software. Also, I would hope that your CAD software gives you a clean output of all the parts / their exact measurements.
What CAD software won't do is allow you to share the design online and allow others to see your design and specs.
Do you have tips I can follow for different materials?
Sure! Here are some basic concepts.
How to Use 80/20 Aluminum
How to Cut PVC Pipe
Can I Connect PVC Pipe with Metal Threads?
How to Connect PVC Pipe without Glue
Do you have any tutorials on how to use the app?
Yes please visit our YouTube Channel and learn about:
Crafty Amigo Tutorial: Design Your Woodworking Project!
Crafty Amigo Tutorial: How to design your DIY PVC Project!
Do you remember the first time you made something for yourself?
It’s such an empowering feeling.
Whether you're 8 or 80... have no experience building anything or you’re a veteran diyer...
Live in a tiny apartment or have a garage full of tools...
Anyone should be able to imagine → design → make things the way they think it should be done!