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I need a mechanically minded partner who can step in every week to prepare complete HVAC design packages for single-family and multi-family homes. Each assignment will be billed hourly; this is steady, week-to-week work rather than a one-off project. What I routinely hand over are architectural plans and a brief on the climate zone and building envelope. From there, you produce: • Duct layout drawings • Piping schematics • Equipment placement plans All drawings must reflect a heat-pump system and meet the Florida Energy Code R405 method (or equivalent) for residential structures. Alongside the drawings I also rely on you for accurate load calculations—sensible/latent and peak demand—using accepted methods so the design is ready for permit submittal. Your deliverables should arrive in PDF for review and DWG/DXF for my archives. I work almost exclusively in AutoCAD, so native compatibility is important. Turnaround is typically three to four business days from the moment you receive a project folder; clear communication on progress is essential so we can stay on schedule. If you have solid experience with residential HVAC, are comfortable with R405 energy modeling and Manual J-type head-load calculations, and enjoy collaborating on an hourly basis, let’s connect.
Project ID: 40632515
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49 freelancers are bidding on average $15 USD/hour for this job

o I understand the demands of designing HVAC systems for residential properties, but I also have a deep knowledge of Florida Energy Code R405 and Manual J-load calculations that are vital to meeting the standards for permit submittal. Furthermore, my robust knowledge extends into the practical aspects as well: sensible/latent and peak demand calculations which ensures every aspect is intricately measured as needed. In addition to being detail-oriented and deadlines-focused, my ability to maintain clear and regular communication throughout projects is unparalleled. This allows us to work smoothly together and meet any challenge that may crop up along the way. Ultimately, it's this blend of technical know-how, thoughtful time management, and effective communication that makes me your ideal candidate for this ongoing project. Letsn't build(from build.)
$10 USD in 40 days
7.5
7.5

As a seasoned Engineer and CAD Designer, my expertise aligns perfectly with your project requirements. My multi-faceted skills and solid experience in AutoCAD will ensure that your HVAC design packages for residential units are accurate and meet all Florida Energy Code and R405 modeling specifications. I understand that precise load calculations and efficient heat-pump systems are essential to residential structures, especially in Florida. My work ensures optimal comfort, energy efficiency, and compatibility with your workflow using PDF, DWG/DXF files.
$11 USD in 6 days
7.0
7.0

English: Hi, I’m a Mechanical Engineer with 13+ years of experience in HVAC design, hydronic systems, piping, equipment selection, heat-load calculations, AutoCAD, and technical documentation. I can support you on a steady weekly basis with complete residential HVAC packages for both single-family and multi-family projects. I can prepare duct layouts, piping schematics, equipment placement plans, and sensible/latent load calculations for heat-pump systems, with deliverables in PDF and native DWG/DXF format. I’m comfortable working from architectural plans and building-envelope data and can follow Florida Energy Code R405 requirements and Manual J-type calculation workflows. I can also maintain the 3–4 business day turnaround you require with clear progress communication.
$35 USD in 40 days
6.6
6.6

Dear Sir, Please contact me to get started. Thanks. I am a Professional Mechanical Design Engineer with 18+ years of experience in HVAC system design. I successfully completed the design, drafting and installation of complete HVAC System 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. I will provide all the services as per your requirement. Proficient in AutoCAD, Revit MEP and more. Well-versed in, HVAC Detail Design Layout Complete Equipment Selection based on load and Schedule. Ductwork and Air Distribution Systems Air Filtration and Purification Systems Detailed Equipment Installation Details Duct Sizing Calculation and Routing Cooling and Heat Load Report Ventilation Calculation Report Split Units Manual J, D and S VRF system Design Chillers Air Conditioners Cooling Towers Kitchen Hood Ventilation Heat exchangers Takeoff Sheets Bills of Quantity Technical Specification and more Projects Completed: High Rise/Low rise Buildings, Hotels, Schools, Hospitals, Cold Storage, Villas, Malls, Mosques, Warehouses and More. Standards: ASHRAE, NFPA, IPC, UPC, IMC and more. Skills: Revit MEP, Elite Fire, AutoCAD, Canute, HAP 4.5 (Hourly-Analysis-Program), McQuay (Duct-size), McQuay (Pipe-size), Carrier psychometric chart and more.
$15 USD in 40 days
6.4
6.4

Hey, You are looking for Ongoing Residential HVAC Design Support. "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
$49 USD in 29 days
6.1
6.1

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
$15 USD in 40 days
5.6
5.6

As an experienced Architect/Civil/Structural Engineer, I have spent years honing my craft in residential design and construction. I specialize in creating spaces that are not only functional and aesthetically refined but also energy efficient and code-compliant. This expertise extends to HVAC design; one of the critical components of any residential project. I am quite familiar with the Florida Energy Code R405 method, which you mentioned as a key requirement for this project. I have also worked with load calculations using Manual J methodology, which ensures that the designs I produce meet peak demand situations while being within optimum limits - a skill that is paramount for any HVAC system design to be reliable and efficient. Additionally, my proficiency in AutoCAD gives me an edge as it is the platform we will primarily be working on. I understand the significance of delivering drawings on time, and with clear communication, which has been achieved consistently throughout my career. In conclusion, if you are seeking for a detail-oriented professional who can provide comprehensive HVAC package designs while maintaining a steady collaboration, I am your best fit!
$12 USD in 40 days
5.7
5.7

Hi, I can provide ongoing HVAC design support for residential projects, including duct layouts, piping schematics, equipment placement, and Manual J-type load calculations. I’m experienced with heat-pump systems, Florida Energy Code R405, and AutoCAD, and can deliver PDF and DWG/DXF files within your 3–4 business-day turnaround. Best Regards
$12 USD in 40 days
5.6
5.6

Hello, I am interested in becoming your ongoing HVAC design partner for your residential projects. I understand that you are looking for reliable week-to-week support rather than a one-off drafting service. I can work from your architectural plans and project information to develop coordinated HVAC packages for single-family and multi-family residential buildings. My typical deliverables can include: * Complete ductwork layouts * HVAC equipment placement plans * Refrigerant/copper piping schematics * Condensate drainage layouts * Supply and return air distribution * Equipment schedules * Heating and cooling load calculations * Sensible, latent, and peak load analysis * Heat-pump system coordination * PDF drawings for review * Editable AutoCAD DWG/DXF files I am comfortable working in an AutoCAD-based workflow and can maintain consistent layer standards and drawing organization across multiple projects. I also understand the importance of coordinating HVAC layouts with architectural constraints, ceiling spaces, structural elements, and other building services. For each assignment, I can work toward your typical 3–4 business-day turnaround and provide clear progress updates throughout the design process. I look forward to discussing your typical project volume, hourly requirements, and design standards.
$10 USD in 40 days
5.5
5.5

I am a HVAC engineer, with more than 10 years of experience in designing HVAC systems (Heating, Ventilation, Air conditioning) systems. I enjoy complete professionalism in using programs that help in creating design drawings, such as HAP, AutoCAD, Revit, Pipe flow expert, Bentley hammer, Ansys and others. We have an experience to dealing with designing HVAC systems for (hospitality, healthcare facilities, residential, commercial, mixed use) projects. I also have extensive experience and am fully familiar with the design codes for HVAC works, mainly ASHRAE, SMACNA ...etc. I have experience in projects in USA, Europe, Australia, Egypt, Saudi Arabia, UAE, North and West Africa. I can send to you some of our finished projects related to HVAC works for the all types of projects if you request them and are interested in the offer provided. Some of our work related to HVAC works will be attached to the projects that have been completed and delivered to customers with complete perfection. Please refer to my profile and take a look at the HVAC projects that have been completed.
$15 USD in 40 days
5.1
5.1

Hello, I have experience preparing residential HVAC design packages in AutoCAD for single-family and multi-family projects, including duct layouts, piping schematics, equipment placement, and permit-ready PDF/DWG deliverables. I’m interested in this ongoing work because it fits a steady weekly workflow where accuracy, code awareness, and clear communication are just as important as drafting speed. I will review each project folder, climate zone, and envelope information, then prepare heat-pump HVAC layouts, equipment plans, and piping drawings that align with Florida Energy Code R405 requirements. I will also complete Manual J-type sensible, latent, and peak load calculations, coordinate the design with the architectural plans, and deliver clean PDF plus DWG/DXF files within the expected 3-4 business day cycle. I can work hourly, keep AutoCAD files organized, and provide regular updates so each package stays ready for review and permit submittal. Thanks for reading my proposal. Edwin
$15 USD in 40 days
5.3
5.3

Hi, I am ready to provide ongoing weekly HVAC design support for your single-family and multi-family residential projects, producing complete heat pump design packages ready for permit submittal, in compliance with the Florida Energy Code R405 method and Manual J-type load calculation standards. Project Deliverables: Duct layout Piping schematics Equipment placement Load calculations I have a few questions: Q: Could you share a sample architectural plan set and climate zone brief for the first project? Q: Do you have a preferred AutoCAD template or layer standard for the duct and piping drawings? Over 5 years of experience in residential HVAC design. Similar projects I have done: Weekly HVAC Design Support for Multiple Single-Family Residential Projects in Florida Heat-Pump Duct Layout, Piping Schematic & Load Calculation Package for a Multi-Family Development Software I can use: AutoCAD My portfolio is attached below. I am ready to start immediately and look forward to receiving your first project folder. Thank you! Regards, Abubakar
$12 USD in 40 days
5.0
5.0

I would love the opportunity to support your residential HVAC design projects on an ongoing basis. I have experience preparing AutoCAD-based HVAC drawings for residential buildings, including duct layouts, piping schematics, equipment placement plans, and permit-ready documentation. Based on your architectural plans, climate zone, and building envelope, I can deliver accurate heat-pump system designs with Manual J-style load calculations (sensible, latent, and peak loads) while following the Florida Energy Code R405 requirements or equivalent standards. All deliverables will be provided in PDF for review and DWG/DXF for seamless AutoCAD compatibility. I understand the importance of clear communication, fast turnaround, and consistent quality for weekly assignments. I can comfortably meet your typical 3–4 business day schedule and provide regular progress updates throughout each project. I look forward to building a long-term working relationship and delivering reliable, high-quality HVAC design packages for your residential projects.
$8 USD in 16 days
3.9
3.9

Hi there! I'll prepare complete residential HVAC design packages for your weekly projects, including heat-pump layouts, ductwork, piping schematics, equipment placement, and permit-ready documentation tailored to the Florida Energy Code R405 requirements. The designs will include accurate Manual J-style load calculations, coordinated AutoCAD drawings, and PDF/DWG deliverables with consistent communication to support your 3–4 business day turnaround and ongoing workflow. ✅ Which software do you use for Manual J and R405 compliance? ✅ Will architectural plans include ceiling framing and mechanical chases? ✅ Do you have preferred HVAC manufacturers or standard equipment schedules? Check portfolio: freelancer.com/u/BuildtrixStudio Looking forward to collaborating with you. Best, Rahul
$12 USD in 40 days
3.9
3.9

With every project I tackle, my goal is to integrate seamless design with technical precision. Since joining the Lancer Freelancing platform on October 2020, I have been consistently delivering high-quality 3D architecture designs and engineering works using AutoCAD, Rhino, Revit, and more. Given your residential HVAC design needs, my skills are a perfect match for your project. From duct layout drawings to piping schematics and equipment placement plans, I can provide you with comprehensive deliverables that align with Florida Energy Code R405. My broad experience in Mechanical Engineering, along with my keen attention to detail, ensures accurate load calculations (sensible/latent and peak demand) using accepted methods for permit submittal-ready designs.
$12 USD in 4 days
4.7
4.7

Hi, I’ve read your project description carefully, and I’m confident that my 7+ years of hands-on HVAC design experience, including extensive work on U.S. residential projects, align very well with your requirements. To demonstrate the quality of my work and ensure we’re a good fit, I’d be happy to provide a small initial sample/portion of the work at no cost. My approach To minimize rework and keep the project moving efficiently, I generally divide the HVAC design process into two stages: 1. Preliminary Stage • HVAC load calculations, Equipment selection & placement, Duct routing, Air terminal locations 2. Detailed Design Stage • Incorporating client feedback, Equipment schedules, Duct & air terminal sizing, Sheet notes, callouts & design details, Final drawing coordination Why am I a good fit for your project? • 7+ years of MEP/HVAC design experience • Extensive experience working on U.S. residential projects • Proficient with EnergyPro, Manual J, REScheck & COMcheck • Strong AutoCAD/CAD drafting and detailing skills • 50+ completed single-family residential projects • Precise, clean & well-organized drawings with proper layering • Quick turnaround and responsive communication • Available as a full-time freelancer for consistent project support I’d be happy to discuss your project requirements and show you relevant examples from my portfolio. Please feel free to visit my portfolio. I look forward to the opportunity to work with you. Best regards.
$10 USD in 40 days
3.2
3.2

Hello! I understand you need a reliable HVAC design partner for recurring single- and multi-family residential projects, producing permit-ready heat-pump designs with duct layouts, piping schematics, equipment placement, and accurate sensible/latent load calculations. I have experience developing residential HVAC systems using Manual J-type load methodologies, coordinating equipment and ductwork with architectural plans, and preparing AutoCAD-compatible documentation aligned with Florida Energy Code requirements. My workflow is to review the envelope and climate data, calculate room-by-room loads, select appropriately sized equipment, develop duct/piping layouts, coordinate the system with the architectural plan, and issue PDF plus DWG/DXF deliverables for review. I would be glad to communicate further and support your ongoing weekly workload. Q1. Do you have a preferred HVAC equipment manufacturer or selection schedule? Q2. Will you provide complete architectural plans and envelope specifications for each assignment? Q3. Which Florida jurisdictions will these designs primarily be submitted to?
$12 USD in 40 days
2.8
2.8

Hello, You need ongoing residential HVAC design support for single and multi family projects, including heat pump duct layouts, piping schematics, equipment placement, and accurate Manual J/R405-based load calculations for Florida projects. I can prepare permit ready HVAC packages in AutoCAD with clear PDF review sets and native DWG/DXF files, covering sensible/latent loads, equipment sizing, duct distribution, and coordination with the architectural plans within your typical 3–4 business day turnaround. Also a quick question, do you already have a preferred HVAC calculation/design software and drafting standards that you want followed across the weekly projects?
$8 USD in 40 days
3.2
3.2

Hello, I am a MEP designer. Have 20 years of experience. I have worked a lot with residential and commercial Have FL, NY, NJ, PA, WA, TX, AZ and other PE licenses. I can help you with the design and permit/construction drawings. I use Revit or Autocad. Thanks!
$20 USD in 40 days
2.7
2.7

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
$10 USD in 40 days
2.0
2.0

Fairhaven, United States
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