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I need Manual J load calcs and Manual S equipment sizing and a complete Manual D duct design for a residential project that spans two full floors plus a conditioned attic. I need a seasoned HVAC designer.. Final drawings should arrive in both PDF for quick reference and DWG/DXF so my architect can drop them straight into the master set. Review for comfort coverage on all floors and adherence to ACCA Manual D principles; minor tweaks are expected up to final approval. If you’ve produced design for multi-level homes before and can turn this around promptly, let’s get started.
Project ID: 40625612
34 proposals
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Active 6 days ago
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34 freelancers are bidding on average $125 USD for this job

Hello, I am a design engineer, I am expert in Architectural 2D & 3D designs and Rendering so i can do the required design in the required time. I have finished similar projects before and finished 600+ projects. Please check my portfolio and reviews. Thanks.
$175 USD in 4 days
8.5
8.5

Hello, Coming from the depths of creative artistry, I'm Ahmed, leader of a team with a passion for transforming blueprints into immersive realities. As multidimensional experts in 3D visualizations and residential designs, we've undertaken countless projects that align perfectly with the fills of your current needs. Having generated concise and detailed drawings in both PDF and DWG/DXF formats, we understand the key significance of quick references and seamless integration into an existing master set. Our architectural precision in adhering to ACCA Manual D principles will be excellent and we have a noteworthy history in comfortably covering residential layouts across multiple floors. Our promise is not just timeliness but also unparalleled attention to detail throughout your project's lifecycle. What sets me apart is not only my skillset with AutoCAD but also my intimate understanding that systems must be both functional AND elegantly integrated into a living space. By choosing us at Art Studio Agency, you're not only getting seasoned professionals with broad expertise but also people who are genuinely passionate about bringing your visions to life - all while keeping practicality and comfort paramount guidelines. Partnering with us is not just opting for better HVAC designs; it's embracing the prospect of uniquely captivating renderings that will breathe life into your distinct project! Thanks!
$155 USD in 3 days
7.2
7.2

As an experienced Engineer with expertise in AutoCAD and Building Design, I understand the crucial role that accurate calculations and design play in an HVAC project. I have a strong background in delivering not only precise but also visually appealing solutions which will ensure that your drawings are not just functional but also aesthetically pleasing. My CAD skills extend to being able to develop cross-platform files, allowing your architect to seamlessly incorporate my work into the master blueprints. Moreover, my experience in both construction and engineering provides me with a unique understanding of the physical realities associated with HVAC systems in multi-story homes, especially regarding airflow distribution and thermal comfort. I have successfully designed HVAC systems for homes similar to yours, incorporating ACCA Manual D principles and ensuring comfortable coverage across all floors.
$66 USD in 1 day
6.8
6.8

Dear Sir, I am an experienced Mechanical Design Engineers with 18 years of experience in HVAC design. I successfully completed the design and installation of HVAC, Plumbing, Fire alarm, firefighting, Water Supply, Drainage, and Sewerage systems for various Residential and Commercial Projects as per standards and specifications. I have all the technical skills, experience, and practical project management skills to complete your task professionally and quickly. Well-versed in VRF system Design, Chillers, Cooling Towers, Pumps, VRF, Fire Sprinkler Systems, Fire Hose Reel systems, Fire Hydrant Systems, Septic tanks, Heat exchangers, Sump Pumps, Fire Alarm systems addressable or Conventional Systems.
$700 USD in 5 days
6.3
6.3

Hello there, This is Sajjad Khan. I am an Architect with more than 6 years of experience in my field in Design and Visualization, MEP, Structural etc. I am experienced in Revit, Rhino, Twinmotion, 3ds Max, AutoCAD, SketchUp, Lumion, D5 Render and Blender as well. I have recent experience in similar projects also. It’s an interesting project and I am really excited to start working on it. Please Get in Touch with me for further discussion on the project.. Thanks Sajjad Khan
$100 USD in 3 days
5.9
5.9

Hello, I fully understand your needs, as I have previously worked on a project similar to your specifications. I am an experienced architect specializing in 3D design and rendering. I have extensive experience using AutoCAD, SketchUp, and Revit 2025, and I can deliver the required design drawings on time. I would be delighted to work on your project. I have carefully reviewed your project details. If you choose me, your project will be completed quickly and to a high standard. Thank you for your interest.
$80 USD in 1 day
6.0
6.0

How are you? Your project matches well with my skills. Please check my profile. https://www.freelancer.com/u/lamvanduong I'll provide all drawing sets and wonderful result such as PDF, DWG(2D drawings), rendering images and BIM(3D model). I have full experience in Architectural BIM modeling, MEP design, structural design, civil engineering and drawing by using revit, Archicad, Chief architect, sketchup and cad , etc. I'll use your country building code to permit. Let's discuss more about project and start together. Best regards
$50 USD in 1 day
5.5
5.5

Mechanical Engineer Expertise in HVAC system & MEP Hi there, I will do this project in advance design and professionally by meeting your guidelines according to ASHRAE & SMACNA, NFPA and IPC Standards & Codes. I have done European, USA and Middle East Projects. I’m professional MEP mechanical engineer with have more than 6 years’ experience and expert in, HVAC systems Design & Drawings, HVAC/BIM Modeling, BMS & Automation System, firefighting system, plumbing & drainage system, , tendering of projects HVAC Load Calculation, Ventilation requirements, Dehumidification, ESP for Duct, Duct Size Calculation, Hydraulic Calculations for Water and air cool chillers Pipes, Chilled & Condenser Water Pump Head calculation and selection, central air conditioning system, maintenance, commissioning of all types HVAC units like chillers, AHU, FCU, VRF, VRV, AHU, FAHU, RTU, diffuser, Cassette etc, in domestic, residential and commercial buildings with professional engineer team. Can you share more information into chat box? I have gone thorough in your project description. I have worked on several similar projects. Please visit my portfolio to see past work. I’m interested in your project. I’m a full-time freelancer. I would give you quality work because your satisfaction and work quality is my first priority. I’m waiting for your message to discuss. Thanks!
$40 USD in 7 days
5.8
5.8

Hello, I have experience preparing residential HVAC design packages for multi-level homes, including Manual J load calculations, Manual S equipment sizing, and Manual D duct layouts. I am interested in this project because comfort coverage across two floors and a conditioned attic requires accurate room-by-room loads, proper zoning, and clean coordination with the architectural set. I will review the plans, envelope details, window schedules, insulation values, and system preferences, then prepare the load calculations, equipment sizing, duct design, airflow schedule, diffuser layout, and final PDF plus DWG/DXF drawings. I will follow ACCA Manual J, S, and D principles, check each floor for comfort coverage, and include minor revisions through final approval. Thanks for reading my proposal. Edwin
$100 USD in 5 days
5.3
5.3

Hey, You are looking for Residential Multi-Story Manual J, S and Duct Layout "Lets Gets Started, I know you have several tempting proposals here, but I guarantee you to be impressed by my work. I have various skills in design, Illustration, Photoshop, Graphic Design, Logo Design and Illustrator. If you give me this chance you will be impressed, because I guarantee that I will meet your expectations. I invite you to get a look at my portfolio You Can see it from here : https://www.freelancer.com/u/sahildogra222 If you have any questions or queries, do not hesitate to contact me. I hope to start working with you. With regards! SAHIL
$30 USD in 1 day
5.6
5.6

As a seasoned professional with extensive experience in AutoCAD and Building Engineering, I am confident in my ability to provide you with top-tier Manual J, S, and Duct Layout services. Having worked on numerous multi-level residential projects similar to yours, I understand the complexities involved and the importance of adhering to ACCA Manual D principles for optimum comfort coverage across all floors. I will ensure that your project receives meticulous attention to detail while making minor adjustments promptly until final approval. To offer maximum convenience, I will provide final drawings in PDF format for your quick reference and CAD files (DWG/DXF) that can be seamlessly integrated into your master set of plans by your architect. My proficiency in 2D AutoCAD drafting and Building Design will allow me to deliver this in a timely manner without compromising on quality. This is essential for maintaining the efficiency and momentum of your project. Your satisfaction as a client is paramount to me, and I assure you that you'll be pleased with my clear communication, comprehensive work approach, and promise of seeing your project through on time. Entrust me with your HVAC design needs; together we'll create an environment that perfectly aligns with your comfort requirements.
$240 USD in 7 days
3.7
3.7

I would appreciate the opportunity to handle your HVAC design project. I have experience preparing complete residential HVAC designs for multi-story homes, including accurate Manual J load calculations, Manual S equipment selection, and ACCA Manual D duct layouts focused on balanced airflow and year-round comfort. For your two-story home with a conditioned attic, I will deliver a coordinated HVAC package that includes properly sized equipment, efficient duct routing, register and return placement, and layouts optimized for comfort across every floor. I will also review the design, make any necessary refinements during the approval process, and ensure the final drawings integrate smoothly with your architect's plans. You will receive all deliverables in PDF for review and DWG/DXF for direct incorporation into the master drawing set. I am committed to delivering accurate, code-conscious, and professional work within your required timeline. Give me one opportunity to handle your project. I assure you that I will complete it with full dedication, accuracy, and professionalism, providing high-quality results that meet your expectations.
$85 USD in 3 days
3.5
3.5

Given my extensive background on software and engineering, I believe I am uniquely suited for your demanding HVAC project. While admittedly new to this platform, let my experience in graphics, 2D/3D modeling and the ability to work with varied computer-aided design software be an asset for your unique needs. Incorporating my skills in AutoCAD and Building Engineering, I can provide the comprehensive Manual J load calcs, Manual S equipment sizing, and detailed manual D duct design you require. Additionally, using these same tools, I will create drawings in every format you need - from PDFs for quick reference to DWG/DXF ready for integration into your master set by your architect.
$44 USD in 1 day
4.5
4.5

Dear client, I understood you are looking for a **seasoned residential HVAC designer** to complete Manual J load calculations, Manual S equipment sizing, and a full Manual D duct design for a two-storey home with a conditioned attic. With over 5 years of CAD/BIM experience, I can prepare coordinated HVAC calculations and comfort-focused duct layouts, then deliver clear **PDF and DWG/DXF** files ready for your architect’s master set, including revisions through final approval. You can review my portfolio here: https://www.freelancer.com/u/olenav24 Looking forward to working with you. Olena
$100 USD in 3 days
2.0
2.0

Hi there ? I have extensive experience using Revit, Chief architect, Autocad and archicad for architectural and MEP modeling, including creating detailed BIM models, floor plans, and construction documentation. I can ensure your project is accurately modeled with full parametric functionality for easy updates. I can start with an initial model draft for your review. Looking forward to collaborating! Best regards
$30 USD in 1 day
2.0
2.0

Dear Client, I reviewed your project requirements and I am interested in working with you. I have extensive experience delivering Construction Engineering, AutoCAD, Building Design and Building Engineering. I focus on understanding the requirements clearly, providing a practical solution, and delivering accurate, well-documented work on schedule. I can review your existing materials, identify the best technical approach, and manage the project from planning through final delivery. You will receive clear communication, regular progress updates, and full support throughout the project. I am available to begin immediately and would be glad to discuss the scope, timeline, and budget. Best regards, Elijah M.
$200 USD in 3 days
1.0
1.0

Hi, there Your multi-story home needs a coordinated Manual J, S, and Manual D package that protects comfort on every floor, including the conditioned attic, without guesswork. I can start immediately. ✅Scope of work I have spent the last 4 years solving exactly this type of problem for residential projects with stacked levels and complex duct routing. I’ll perform room-by-room Manual J load calculations, size the equipment with Manual S, and develop a complete Manual D duct layout focused on balanced airflow, static pressure control, and comfort coverage across all zones. ✅Implementation I’ll review your architectural plans, model each floor separately, verify supply/return placement, and tune the duct design to ACCA Manual D principles. I’ll also make practical adjustments through final approval so the system is buildable and aligned with your architect’s master set. ✅Deliverables - PDF set for quick reference - DWG/DXF files for direct coordination - Clear equipment schedule and duct layout - Revisions for final comfort verification Best regards, Christopher
$30 USD in 2 days
0.0
0.0

Hi, there Residential comfort issues across two floors and a conditioned attic usually come from imbalanced loads, undersized returns, and duct pressure losses. I’ve spent the last 4 years solving exactly this type of problem for multi-level homes, and I can produce the Manual J, Manual S, and full Manual D package you need. Deliverables - Room-by-room Manual J load calculations - Manual S equipment selection sized for the actual design load - Complete Manual D duct layout for all floors and attic areas - PDF drawings plus DWG/DXF files for your architect Implementation I will verify envelope inputs, zoning/airflow requirements, then model supply and return routing to maintain comfort coverage and proper static pressure. I’ll check trunk and branch sizing, fittings, and terminal airflow to align with ACCA Manual D principles, then refine minor items through final approval. Best regards, Bryan
$30 USD in 2 days
0.0
0.0

Hello, With my dedication to optimizing your residential project for comfort, efficiency, and adherence to ACCA Manual D principles, coupled with my extensive experience in AutoCAD and building design, I bring a unique set of skills to the table. In my 16+ years in the industry, I have helped many clients with diverse needs and projects like yours are where I thrive. My familiarity with producing designs for multi-level homes and creating flexible file formats to ensure easy collaboration with other professionals (like your architect) signals my commitment to delivering solutions that make your workflow smoother. Moreover, as head of a team comprising 55+ talented professionals adept at handling projects of all sizes, we guarantee that your project will be completed promptly without compromising on quality. Having completed various HVAC design projects before, I understand the need for minor tweaks up to final approval; rest assured these will be done quickly and accurately. Specifically, my strength in AutoCAD, which you uphold as indispensable, allows me to deliver not only PDF files but also DWG/DXF files for ease of use. My ultimate objective is 100% client satisfaction and no stone will be left unturned to achieve this. It would be an honor to collaborate with you on this project, ensuring every facet is meticulously attended to and producing a efficient Manual J load calcs, Manual S equipment sizing, and Manual D duct design Thanks!
$155 USD in 1 day
0.0
0.0

With a wealth of experience in residential design and a specialization in HVAC planning, I am confidently positioned to tackle your Multi-Story Manual J, S and Duct Layout project. My extensive use of AutoCAD and comprehensive understanding of the ASHRAE codes will ensure precise Manual J load calcs, Manual S equipment sizing and a compliant Manual D duct design are delivered. Past projects that encompassed multi-levels will prove beneficial here, helping me to quickly identify any potential issues and efficiently solve them for better comfort provision. Detailed-oriented, I'm committed to ensuring your project stays within ACCA Manual D framework while quick to make necessary tweaks as we progress together towards the final approval. In terms of deliverables, you can expect both PDF and DWG/DXF files for convenient cross-team compatibility. These files will be designed with your architect's easy integration into the master set in mind. Choose me for this project and rest assured, I'll provide you not only with stellar drawings but clear communication and reliable service always. Let's get started!
$140 USD in 7 days
0.0
0.0

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