Custom plenum hvac Understanding the difference between these two HVAC systems can help you choose the Shop Duct Plenums at Ferguson. How Does a Plenum Work? A plenum in an HVAC system creates a positive or negative pressure zone. 21 votes, 56 comments. Allows connections from rectangular grilles to round ducting. Supply air plenum box –this type of duct plenum box takes in new cooled or heated air from the air-conditioning system or the heater, it then distributes collected air throughout the property. Our plenums are crafted from high The Role of Furnace Plenums in HVAC Systems A furnace plenum is a vital part of your HVAC system. Universal Plenum - Diffusers - Price IndustriesOverview The Universal Plenum (UP) is designed to fit Price Custom Flow, Linear Slot Diffuser, and Linear Bar Grille products. We offer custom ductwork design, fabrication, and installation for residential and commercial air conditioning and heating systems. Start by measuring your ductwork system to determine the appropriate size. Manufactured with the same high-quality materials and attentive workmanship, our sheet metal solutions easily outperform others in the industry. Airflow needs Do you want to direct airflow towards certain areas of your area? Although we specialize in custom sheet metal products of HVAC contractors, we also have a large selection of standard products ready for your use. Find expert-curated Duct Plenums products from the #1 US plumbing supplier and top distributor of HVAC, waterworks, and MRO products. Invi Air, manufacturer of HVAC diffusers, frameless vent covers. These custom plenums and diffusers are manufactured in house by Carey's. hvac): “Watch as the HVAC technician constructs a custom plenum box from scratch using handy tools. We found all necessary supplies at Lowes and picked them up. Use sheet metal for durability, cut precise dimensions, and secure joints with rivets or screws for an efficient airflow solution. Whether you need custom transitions, plenums, return boxes, or flexible connectors, our products ensure a proper fit and reliable performance for residential and commercial applications. The Two Types of HVAC Plenums Many homeowners may have heard the term plenum when their HVAC technician makes a Concentric Duct Kits are used with Roof Top Mounted HVAC equipment allowing the supply air to travel down into the building through an external duct that surrounds the central return air duct where the building air is allowed to return up to the unit. Your one-stop air conditioning, heating, and custom sheet metal HVAC supplier. EZ Plenum products are used by licensed HVAC contractors, builders, and mechanical service companies who value consistent performance and fast availability. But hidden inside your system is a crucial piece of sheet metal that can make or break your home’s comfort: the plenum box. To estimate costs for your project: 1. W x 20 in. We picked up: 4ea sheets 24-in x 3-ft Custom Airflow Solutions: Pair this diffuser with a customizable plenum box (sold separately) to perfectly match your HVAC system's requirements. Usually our custom fabricated items are only 25-30% more expensive then their similar stock counterparts. Benacquisto Fabricating is Pittsburgh's premiere custom sheet metal fabrication shop. Expect the Plenum prices to fluctuate between various HVAC companies – each and every company have different operation expenses and over-head. Our durable plenum box HVAC solutions include air plenum boxes, AC plenum boxes, and box plenums built to spec. Overview The SDS linear slot diffuser is designed to satisfy architectural applications that require continuous lengths without compromising air distribution performance. Home We specialize in fabricating residential and commercial HVAC custom ductwork to fit your home or business existing system. R. The plenum connects to the furnace or air handler and branches out to various ducts that deliver air to different areas. ENGINEERS Custom Air Diffusers Help Optimize HVAC Performance Invi Air’s design and build services can supply Seamless Air Diffusers that meet your unique specifications. In operation since 1988, Benacquisto Fabricating produces custom HVAC ductwork and architectural products, including cupolas, cornices, finials, crosses, and more. The plenum is installed directly to the air conditioner and connects to the ductwork, which helps in managing airflow and maintaining system balance. Direct the return air from the building back into RTU. We specialize in spiral pipe, fittings, and custom sheet metal fabrication for residential, commercial, and industrial HVAC systems. Oct 25, 2024 路 Building a plenum box for your HVAC system can enhance air distribution efficiency. I. Features: • Available in a wide range of custom dimensions: round connections for 4, 5, 6, 8, 10, 12, or 14-inch diameter duct; rectangular dimensions from 6 to 24 inches in half-inch increments, depending on the Producing high performance HVAC access doors, viewports and plenum wall panels for custom air handling manufacturers and modular framing systems. The Flowbar system is available in continuous Custom Flow linear diffusers are specifically designed for the most demanding architectural and performance applications. Aug 20, 2025 路 馃攷 Understanding the Basics: What Is a Plenum Box? In the simplest terms, a plenum box is a large, sealed chamber that connects your HVAC system (furnace, air handler, or heat pump) to the ductwork in your home. Standard and Custom Duct Sizes Available, Made to Order Supply Air Plenums Return Air — SUPPORT THE CHANNEL —https://www. Aug 20, 2025 路 A custom plenum is fabricated by an HVAC contractor or sheet metal shop to fit your system’s unique requirements. Modular Framing: The GPW3TB panel is recommended for 50 mm commercial HVAC modular framing. Offering architectural standard or custom-made linear, square and round diffusers. Whether you're interested in an insulated steel plenum from Gray Metal South or CEN Fabrications Inc, you can count on these crucial parts to safely house your HVAC unit and disperse air without any limitations 2-Inch HVAC Plenum Access Doors Genesis 2″ HVAC Plenum Access Doors are ideal for Modular Framing Systems or custom HVAC plenum wall panel construction air handlers The GPA2 series is available in both through metal design or with the ITM4 non-through-metal thermal break technology for higher thermal performance applications. Tradesman MFG: Elevate your HVAC efficiency with our next-gen plenum solutions. The custom thermal break clip design allows for a large range of material thicknesses to be used are based on the application. Roof Curb Adapters are used to mount roof top mounted HVAC units (RTU’s) on existing roof curbs. M. Set unit and tap in along side or bring in from backside. Learn the endless opportunities in sheet metal fabrication. Most plenums are made of sheet metal and can be custom-sized by your technician to fit your space and HVAC system perfectly. While standard sizes work for some setups, many HVAC systems need custom-sized plenums to ensure proper air distribution and to avoid unnecessary strain on the system. It’s the central hub of air flow in a building. See the step-by-step process of creating a DIY plenum box for heating and cooling systems. Plenums HVAC accessory manufacturer. We offer plenums in a range of sizes and configurations to 1-3 slot linear diffusers with standard & wide-width options for precision HVAC airflow. patreon. I plan on doing this work full-time, to supplement my retirement salary. Professionally designed, sized & manufactured HVAC ductwork for new build homes, cabins, or renovations & upgrades. Over the last few years, I have hired a duct specialist to handle any duct work that may be necessary. This kit includes the sheet metal bender, sheet metal pieces and screws you'll need to get the job done. Shop custom HVAC plenum boxes from Duct2Go. The box accommodates a standard sized 20”x20”x4” filter. HVAC Retrofit Solutions Tailored For Every Project Modern Energy-Efficient HVAC Solutions That Save You Money We specialize in the design, selection and fabrication of Custom Air Handlers and retrofit solutions to meet the most challenging performance and space requirements. Whether you need custom duct fabrication for your home or business, we’ve got you covered. The 4 common types of HVAC plenums are: Explore our range of HVAC services, including custom metal work, linesets, plenums, and prefabricated duct systems tailored to your needs. 1-3 slot linear diffusers with standard & wide-width options for precision HVAC airflow. Is your A/C System in need of repair or service? Get connected with the best heating and air conditioning contractors in your area. This article will cover the types of plenums, their functions and the importance of installation and maintenance. Our sheet metal ductwork packages include everything required for central HVAC ducting, including drawings, heating ducts, plenums, & more. In this comprehensive guide, we will walk you through the process of fabricating a sheet metal plenum, from planning and design to assembly and installation. You will most probably find it right behind the air handler or furnace. Now that you know what a plenum means in HVAC, let’s look at how it works. Direct the air flow from the supply outlet of the RTU into the supply ducting of the building and direct the From plenums, spiral ducts, and rectangular ducts to racks, furnace stands, and more, you can count on Metroplex Sheet Metal to provide you with high-quality products at competitive prices. Let your HVAC contractor take care of securing the materials for you. Direct the air flow from the supply outlet of the RTU into the supply ducting of the building. The options for air distribution at the end of the The HVAC professionals are installing a new air handler today. Available in an assortment of sizes, these premium-quality plenums are made to efficiently allow and release air. Find sizes and styles to use as a supply or return plenum. At Webb Supply, we offer a range of plenums designed to meet various installation requirements and system sizes. 12-inch white 2-slot linear diffuser—commercial-grade aluminum vent covers. Supply plenum box –this type of duct plenum box takes in new cooled or heated air from the air-conditioning system or the heater, it then distributes collected air throughout the property. Set Project Zip Code Enter the Zip Code for the location where labor is hired and materials purchased. "B" Style Plenum by Southwark Metal Mfg. trutechtools. Johnson Controls Trane Siemens Andover Controls Echelon Lon Works Plenum Cable CCTV Plenum HVAC Plenum Coaxial and Twin Axial Control and Instrument Plenum Rated Lo Cap Custom Plenum Cable Start Collars from The Duct Shop are an economical way for starting a new duct run from your supply or return plenum. These kits are specific to a particular HVAC Unit so they must be selected for that unit. With flexible configurations and low leakage, they ensure efficient airflow control for any HVAC application. The AH is a Rheem variable speed with a Saturday sheet metal. The SDS provides the ideal combination of Aug 20, 2025 路 A central HVAC box, the plenum balances and distributes air throughout your home’s duct system. Custom Flow is ideal for long, continuous runs and often used for perimeter heating and cooling. Call an AC Pro Certified contractor today for all HVAC services. Fast Shipping from North America: We ship quickly from Vancouver, Canada. As a premium linear slot diffuser, Custom Flow is manufactured using extruded aluminum ensuring a crisp, clean appearance. The concentric diffusers are not specific to a The Ductworks, Inc. Drop Box Concentric Diffusers are used with Roof Top Mounted HVAC equipment allowing the supply air to travel down into the building through a duct directly connected to the roof curb supply air opening. Some of the standard products we offer include plenums, spiral ducts, rectangular ducts, racks, furnace We installed an air handler in our shop and wanted to try and build a plenum box from scratch. We are also usually able to build a totally new product from a sketch or detail that you provide us with. Pacific Duct Inc is Southern California’s premier HVAC duct manufacturer in Montclair, CA. Modular Framing: The GPW2 panel is recommended for 50 mm commercial HVAC modular framing. They are fitted with high quality gasketed access doors to expedite access for future service and maintenance or built for use in free-air plenum chambers and mechanical rooms. Welcome to OKC FAB. Dual adjustable blades & airtight seal for sleek HVAC performance. However, I would like to tackle installing a plenum, on this unit, if I could get some suggestions from this group. Listed below are just a few examples of the sheet metal and ductwork that DeValls HVAC can repair, replace and or install. 150K subscribers in the HVAC community. Planning and Our custom air handlers offer precise sizing, durable double-wall construction, and advanced energy recovery for superior performance. Whatever your requirement is, chances are we have it IN STOCK! Need a custom plenum or an odd-shaped elbow? Our full service sheet metal fabrication shop will make it for you…FAST! We have a computer controlled Custom Ductwork Enhance your HVAC system with precision-crafted custom ductwork designed to meet your specific requirements. 馃搹 Features of Custom Plenums Built to exact specifications (dimensions, duct connections, transitions). For example, a supply air plenum box helps with the heat transfer from the furnace to the ductwork, and eventually to the rooms. This makes installation much faster and easier. Shop high-quality HVAC ducts, sheet metal ducting, fittings, and ventilation supplies at Duct Outlet. First Supply has a selection of duct plenums that connect to the heating and cooling system to bring in, distribute, and remove air. As experts in light commercial and residential duct systems, we partner with HVAC contractors all the way from blueprint takeoffs to onsite delivery. Select the buttons below to learn more about our residential sheet metal solutions. 9P5036 9P5036 Furnace Plenum 12-7/8x20x36 14w 2 Piece Includes Cap - Rheem 9P5048 9P5048 Furnace Plenum 12-7/8x20x48 14w 2 Piece Includes Cap - Rheem 9P5060 9P5060 Furnace Plenum 12-7/8x20x60 14w 2 Piece Includes Cap - Rheem 9P50CAP 9P50CAP Furnace Plenum Cap 12-7/8x20 9P7036 9P7036 Furnace Plenum 16-3/8x20x36 17w 2 Piece Includes Cap - Rheem Purchasing a new plenum We don’t recommend buying your plenum from sites like Amazon or a home improvement store before installation. It acts as a central distribution box for heated or cooled air, ensuring that the air is evenly distributed throughout your home or commercial space. Why??? It’s sheet metal! Jan 7, 2022 路 In this HVAC Training Video, I show the Process of Making a Sheet Metal Plenum and End Cap using just these few hilmor Tools, including the new "Pocket Brake". Concentric Diffusers are used with Roof Top Mounted HVAC equipment allowing the supply air to travel down into the building through a duct directly connected to the roof curb supply air opening. Return Plenum: Collects used indoor air and channels it back to the system for filtering and conditioning. They are connected to the ductwork and the HVAC unit, functioning to either deliver conditioned air from the unit into the ducts (supply plenum) or collect air from the… Custom Adapter Contact Us About Custom Adapter Home| Products| Lead Times| Contact Copyright © Plenums of Florida, Inc. Maintenance Matters: Keeping Your Plenum in Top Shape A plenum needs regular inspections and care, just like any other part of your HVAC system. Oklahoma’s #1 source for duct and plenum fabrication “Lowest prices and fastest turn around” LOCALLY OWNED AND OPERATED OVER 45 YEARS OF EXPERIENCE IN SHEETMETAL FABRICATION AND INSTALLATION Services DUCT WORK / plenums HVAC CURB FABRICATION Mar 20, 2023 路 Always rely on experienced HVAC technicians for installation to ensure safety and optimal airflow. 3-Inch HVAC Plenum Access Doors Genesis 3″ HVAC Plenum Access Doors are ideal for Modular Framing Systems or custom HVAC plenum wall panel construction air handlers The GPA3 series is available in both through metal design or with the ITM4 non-through-metal thermal break technology for higher thermal performance applications. Our enclosures can conceal and protect pipes from damage as well as shield from potential contact with people. D x 36 in. It is made up of a rectangular or square box with a flat top, which connects to the HVAC unit. Opting for a kit si Nov 28, 2023 路 Plenum boxes in HVAC (Heating, Ventilation, and Air Conditioning) systems are essential components that serve as central chambers for air distribution. Start by measuring your ductwork, then cut sturdy sheet metal to size. Explore cutting-edge products and expert services today! Southern Pipe & Supply is home to various plenums for HVAC systems. Ductwork As one of New Zealand’s leading Duct Shops, we supply Rectangular, Round and Oval duct and fittings of all shapes and sizes, to the HVAC and dust and fume extraction industries. Linear Slot Diffusers & HVAC Vent Covers Specialists in commercial grade aluminum linear air diffusers, linear bar grilles, and custom plenums Linear Slot Diffuser - 100% Aluminum with weather stripping to prevent ceiling smudges Our commercial grade linear slot diffusers come in 1, 2, and 3 slots with the opening widths in 19mm and 25mm. com/qualityhvacr?fan_landing=true— Check out @TruTech Tools, LTD —https://www. Need to build a metal supply plenum for a residential HVAC system? In this video, we walk you through the step-by-step process of fabricating and installing a properly sized metal plenum to ensure HVAC Sheet Metal Fabrication in Austin Quality Sheet Metal Fabrication & Installation in Austin Elite provides sheet metal fabrication & installation services throughout the Greater Austin area. If you are not a… Apr 19, 2023 路 How to Fabricate a Sheet Metal Plenum? A sheet metal plenum is an essential component of an HVAC system, which is responsible for distributing the air throughout the building. 3-Inch HVAC Plenum Wall Panels Pan-in-Pan Plenum Wall Panels are available in 2″, 3" and 4″ thick thermal break wall construction. Concentric Diffuser, Concentric Duct Kit, Roof Curb Adapter, Economizer Mixing Box, Vibration Isolation The trim-to-fit knockdown plenum fully assembled measures 17. Simply measure and cut to size using tin snips to match the supply opening of the air handler, furnace, or evaporator coil. Specify Project Size and Options Enter the In this video, produced by Steve Nagy and Chris Cherry, viewers will learn how to construct supply and return plenums using a plenum kit. Ensure optimal maintenance with our high-performance, reliable solutions. Custom Plenum Box - Built to your specifications by Flo-Matrix HVAC Need a custom plenum for your linear slot diffuser? We build them to fit your exact needs! While we are known for our air vent covers, we also design and fabricate plenum boxes for a wide variety of HVAC systems. See the We would like to show you a description here but the site won’t allow us. In the early 80s Bob Copp, our Founder, had the idea to start a sheet metal shop to service HVAC contractors in the San Diego area. Create an ideal pattern of air distribution for your project by controlling the shape, size, slot thickness, slot angle, and plenum box dimensions of the diffuser design. From one off plenums to large scale projects, no job is too big or too small. For custom duct work installation needs or creative duct design contact DeValls HVAC today. Use with Custom Flow (CF) diffusers When plenum endcaps are not positioned directly over diffuser spacer bar, install blankoff from plenum endcap to next spacer bar For installation instructions, see CF installation manual Factory tolerance +/- 1/16" (2mm) In addition, a plenum box in HVAC systems acts as a junction that allows air to flow at different speeds and directions on a predetermined ductwork layout. Carey's plenums and diffusers are not available from a standard diffuser supplier. Houston HVAC Sheetmetal FabricationAbout Us With over 13 years experience, Air Star Sheet Metal specializes in fabricating high quality residential and commercial HVAC custom ductwork to fit your home or business, existing or new air heating/cooling system. Mar 26, 2024 路 Plenum boxes are crucial to the performance of the HVAC system. The wide array of slot widths allow for more CFM per linear foot while minimizing noise and pressure loss. ”. These linear slot diffusers feature fully adjustable, aerodynamic pattern controllers fabricated from extruded aluminum, and are available in a large selection of frame styles. It is part of the ductwork, but far different than an air duct as these important boxes handle air as it enters the ducts and helps to recirculate it within a system. Use our Cost Calculator for cost estimate examples customized to the location, size and options of your project. No matter your unique needs, we can fabricate high-quality custom HVAC ductwork for your next project. Watch our plenums intro video to learn more. 2. There are a few types of plenums in HVAC but where do you find them and how they actually work? So, I gathered the 4 common types of HVAC plenums. Custom Sheet Metal Plenums – Tailored to Your Specifications We specialize in custom fabrication of sheet metal plenums and ductwork for HVAC systems, including furnaces, air handlers, heat pumps, and more. Is that normal? The Genesis HVAC Access Door design has no extruded aluminum frame The unique pan-in-pan design allows for the two pans to creates a solid, esthetically pleasing access door and allows for modifications to be added as needed. Fast shipping and trusted by contractors nationwide. Our company is equipped to fabricate all custom duct transitions, elbows, offsets and handle any residential or commercial custom HVAC Your one-stop air conditioning, heating, and custom sheet metal HVAC supplier. Capabilities include rapid prototyping, shot blasting, stress relieving, heat treating, metal certification and pattern design. 2-Inch HVAC Plenum Access Doors Pan-in-Pan Non-Thermal Break Plenum Wall Panels are available in 1″, 2″, 3" and 4″ thicknesses. Ac plenum box is usually connected using the flexible duct connector of canvas or similar mediums to abate vibration when operating. Easy Installation Sturdy Construction Galvanized Exterior Internally Insulated (R6 Typical) Center Bracing for Roof top mounted HVAC units (RTU’s) are mounted on top of roof curbs that provide the following main functions: Attach the RTU to the building structure with considerations for wind and seismic loads. hvac (@shmeezy. A sheet metal transition connects a new furnace, air handler, or evaporator coil to existing ductwork. The plenum actually becomes a heat source, as it is warmed by air from the furnace and extends the warmth as air continues through the ductwork. , designs and manufactures custom air conditioning and heating systems. A plenum box is an air conditioner component that is directly connected to the ducts of an HVAC system. Custom Mechanical Solutions is a commercial and industrial mechanical equipment representative based in the Pacific Northwest. Given its central role, the quality and design of the plenum can greatly influence the performance of your HVAC system. The knock-down design of the plenum takes up very little space and simplifies transporting to the job site. The plenum might not get the spotlight, but it’s the hub where Custom HVAC Ductwork That Fits: Start Collars, Flex Connectors, and Plenums Made to Order Custom Ductwork Components for a Cleaner, Easier Install Straight Start Collars, Canvas Flex Connectors, and Sheet Metal Plenums Built to Your Specs When it comes to ductwork, fit and function are everything. If you are not a member of the trade… {"product_id":"custom-sheet-metal-plenum","title":"Online Design + Order Custom Size Sheet Metal Plenum","description":"\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eCustom Sheet Metal Plenums – Tailored to Your Specifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe Sheet metal plenums are essential components in HVAC systems, serving as the central hub for airflow distribution. This is how to Measure, Cut, Add the Slide/Slip/S-lock, Cut the U Channel, Snap Lock Punch the U Channel and Tradesman MFG delivers expertly crafted plenum HVAC access doors with top durability. #hvac #hvactechnician #hvaclife”. Jul 13, 2025 路 A plenum is a big part of an HVAC system, but what is the purpose of a plenum? Simply put, it distributes and collects air. We strictly follow DW144 standards with all ductwork we produce. Superior Service. Explore our range of personalized options for a custom-fit ductwork experience. A subreddit for Heating, Ventilation, & Air Conditioning Technicians. Whether it’s a full system retrofit or a single plenum, we deliver fast turnarounds with clean, accurate work that fits right the first time. The drop box Baker Distributing is the preferred choice in HVAC, Refrigeration & Foodservice equipment, parts and supplies distribution. All Rights Reserved. Installation Tip — First, you would cut the proper size hole into your plenum using sheet metal snips. This Due in large part to our 2 manufacturing and design divisions and highly trained and skilled staff in both management and in the field. Can integrate special features like zoning dampers or unique angles. Since 1946, Southwark Metal Manufacturing has established itself as one of the largest manufacturers of HVAC sheet metal pipe, duct, and fittings for residential and light commercial applications. . 52 Likes, TikTok video from Ali Shoaib (@doct0rhvac): “Discover how to create a custom plenum box for HVAC jobs. A plenum creates the transition between your furnace and you. Think of it as the “traffic controller” of conditioned air. HVACQuick Custom Square to Round Duct Transitions MCB Series built-to-order square to round ceiling box transitions. An annual HVAC tune-up should include a plenum check for leaks, dust buildup, or signs of wear. Nov 5, 2024 路 Creating an HVAC plenum involves careful planning and construction. The Genesis design gives you an alternative Jun 28, 2013 路 Usually you can get the proper cased AC coil for the furnace you are installing and either easily transition the duct to the existing duct line or you can have a custom plenum made fitting the coil to the furnace. has established itself as Pittsburgh’s premier custom fabrication shop for rectangular duct and fittings that meet our customers’ exact specifications. Custom Made Upon Request Size Qty Up to 18″ 1 Up to 24″ 1 Up to 30″ 1 Up to 36″ 1 Up to 42″ 1 Up to 48″ 1 Up to 60″ 1 Here at K & E Sheet Metal we specialize in fabricating residential HVAC custom ductwork to fit your home's existing or new forced air heating/cooling system. 3 local HVAC suppliers tell me I have to be licensed to purchase 8x14 plenum, and won’t sell to me directly. This is a detailed set of plans to fabricate a sheet metal return plenum specific to the MRCOOL Universal 2-3 Ton indoor unit (air handler). We strive to be the premier provider of integrated HVAC solutions in all markets we serve. Experience custom HVAC ductwork delivered to your home or business. Choose slot configurations for standard or high-velocity performance. Custom manufacturer of plenums made from SR319 aluminum for plastic film industry. Whether you’re fabricating custom supply plenums, installing ductless mini splits, or replacing air conditioning parts, we provide OEM and aftermarket options built to professional standards. The supply air is distributed horizontally into the space to be cooled while the return air goes up the grille on the center bottom of the diffuser box. The plenum balances airflow, boosts efficiency, minimizes noise, and protects your HVAC In October 2025 the estimated cost to Install a Plenum starts at $1,318 - $1,577 per plenum. The supply air is distributed horizontally into the space to be cooled while the return air is ducted through a separate return duct, not connected to the drop box diffuser. Co. Seal the openings in the roof as an Jan 5, 2023 路 329 Likes, TikTok video from shmeezy. RTU’s are mounted on top of roof curbs and those roof curbs provide the following main functions: Attach the RTU to the building structure with considerations for wind and seismic loads. Given its central role, the Aug 20, 2025 路 When most homeowners think about their HVAC system, they picture the furnace, the AC condenser, or maybe the thermostat on the wall. Discover what an air conditioner plenum is, how it works, and why it plays a key role in HVAC efficiency. Our shop is equipped to fabricate custom duct transitions, elbows, offsets and more, quickly and accurately with our new CNC plasma cutting system. How many of you build sheet metal plenums in house? comments sorted by Best Top New Controversial Q&A Add a Comment AlbertCoughmann • Additional comment actions In this HVAC Training Video, I show How to Make a Sheet Metal Plenum in the Field! I Bend the Metal Cross Brakes and 90's with a piece of Plywood! How to Build a FILTER RACK in a Plenum or Duct so that the Filter Slides In Smoothly. 5 in. The supply plenum distributes heated or cooled air from the HVAC unit into the ducts that lead to each room. Fabricating your own sheet metal plenum can be a cost-effective and rewarding project for DIY enthusiasts. I was surprised to learn that they will not be replacing my old return plenum which is the box on top of the HVAC system. Call us for assistance or Request an Appointment. and is designed for use with all heating and cooling applications. They are manufactured from the highest quality galvanized sheet metal and to our exacting standards. PLENUMN Welcome to our Plenum category, your go-to destination for a wide selection of sheet metal plenums and related accessories. Supply Plenum: Distributes clean, conditioned air from the blower into multiple ducts. The supply plenum distributes conditioned air evenly into your home’s ducts, while the return plenum collects circulated air, often filters it, and sends it back to the HVAC unit to be reheated or cooled. Jan 10, 2011 路 I am a new member, but have a college certificate in HVAC. From square and round ductwork, to elbows, boots, take-offs. Plenums are essential components of HVAC systems, responsible for distributing conditioned air throughout your space. Order online and pick up in store. The idea was to keep people working consistently while also lessening the burden of a shop overhead for HVAC Contractors. Contact our team today to get started with your custom package! ITM4 offers the best HVAC Plenum Access Doors, Wall Panels, Viewports and Accessories on the market! Carey’s proprietary radial air diffusers and plenums are custom built and have been tested and proven to provide laminar air flow at the firing line after proper commissioning. Here at The Duct Shop, we can custom fabricate any of our stock items in a range of different sizes, shapes and styles to fit your specific application. The type of HVAC Certain diffusers work in conjunction with specific kinds of HVAC systems ducted (for instance, linear diffusers designed for wall-mounted ducting HVAC) Therefore, make sure that the linear diffuser you choose to use is compatible with your HVAC system. Typically crafted from heavy-gauge sheet metal. Our tailored solutions ensure efficient and seamless airflow, perfect for enhancing comfort and air quality in living spaces. FlowBar’s outstanding performance allows higher airflows than conventional linear diffusers. Once we receive payment, we Why Custom Plenums Matter for Your Ductwork Project A well-sized plenum is essential for efficient airflow, consistent temperature control, and a quieter HVAC system. As At K & E Sheet Metal, we specialize in custom ductwork and metal fabrication for residential and light commercial HVAC systems. Plenums are an important component in HVAC/R system design, sometimes referred to as an air box or a plenum box, they help to protect supply air and equipment, act as a reservoir for the volume of intake equipment air, and, depending on the interior design and position of the component, may also serve to direct airflow back into the returned air supply using diverter structures. com (Use promo code “ Plenums Plenums A plenum serves as a central hub in your ducted air conditioning system, evenly distributing cooled or heated air from your unit to various parts of the building. Titus FlowBar architectural linear diffuser system maximizes engineering performance without sacrificing aesthetic considerations for the designer. Combination supply/return plenum slot diffuser, 3/4" slot, fixed blade slot with down blow section, 2" return slot Aug 16, 2022 路 Designing an HVAC system for commercial buildings, public spaces, or other industrial applications is a complex process. Jun 3, 2025 路 A plenum is an air distribution box designed for forced-air systems on residential homes and commercial businesses. has a Full Service HVAC Ductwork Fabrication Service! We stock a full line of pre-fabricated sheet metal products. HVAC Depot is one division that manufactures and supplies custom ventilation products for any application while Pennair Custom Air Design Ltd. The Johnson’s custom built equipment plenums and platforms are custom designed to fit to any size equipment cabinet and any height requirement. Next, you would bend every other tab on the start collar out 90 degrees Aug 20, 2025 路 馃彔 The Plenum’s Role in Air Movement Think of the plenum as your HVAC’s air traffic controller. Oct 13, 2023 路 Plenum – Pricing and Installation Cost Checklist Get at least 3-5 estimates before hiring a Plenums HVAC contractor — estimates are typically free, unless it’s a service call for a repair. H. Ships worldwide. 172K subscribers in the HVAC community. We provide engineered custom solutions rather than catalogued products. Orders to the USA typically arrive within 2-7 business days after dispatch. This unique marriage of design and How to cut HVAC plenum fiber glass duct board using toolsBelow are a few videos for basic HVAC you may want to watch to learn more about HVAC residential bas Home | Inventory | HVAC Products | HVAC Products | Return Plenum “Coffin Box” Return Plenum “Coffin Box” Use where a Metal Insulated Box is needed for Return Air. Solid Solutions. Aug 20, 2025 路 Unlike custom sheet metal plenums, which need to be fabricated and measured precisely, a kit gives you a standard size that matches many common HVAC units. This is a sheet metal transition kit with the sheet metal bender. Assemble the box ensuring tight seals to prevent leaks, and attach it securely to the ducts for optimal airflow. Architects and mechanical engineers must explore whether to use an underfloor air distribution system equipped with air plenums or an overhead VAV system that relies on ducted air return. HVAC Custom Enclosure has Pipe Enclosures & False back Plenums for any application. If you already own a sheet metal bender then you may prefer KIT081 sheet metal transition kit without the bender. lolor isyc iost onlum zlm err fmkrj ggs ydyi kmeawh cnktrga ctq ipzol kwfll pgvstlqg