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English
$
USD
I will do professional hvac design and load calculation
I provide HVAC design, heating and cooling load calculations, and Manual JSD
Please contact me to confirm availability before placing your order!
As a Mechanical Engineer with over 6+ years of expertise in Residential HVAC Design, I provide tailored, high-quality solutions fo...
Level 1
Has met certain performance criteria and shows strong potential in the marketplace.
Highly Responsive
Known for exceptionally quick replies
About this Gig
Welcome Everyone on my Profile If you are looking for an HVAC Expert For your county and city permit of Manual J, D, and S as per ACCA codes or ASHRAE codes, Wright & CoolCalc software then you have to come to the right place. I am an HVAC Expert using my skills i have done more than 149+ projects of HVAC for permits all over the world. Have more than +7 years of experience in professional life. All kinds of HVAC Work
Cooling Load,
Heating Load,
Manual j is Heating and cooling load calculation as per ACCA or ASHRAE codes.
Manual D is a Duct layout centralized system or ductless system layout, Mini split system, and VRF
Manual S is Equipment details with a catalog and details of indoor and outdoor units.
Psychometric Charts
Duct Layout on AutoCAD of all kind of Duct Layout
Rectangular, Square, Circular, Flexible,
ducts in all kinds of Buildings,
Residential,
Commercial,
Industrial,
Hospitals,
University,
and all other engineering drawings.
Why choose me?
My work will be as per your country code all over the world,
USA, Canada, Europe, Germany, UAE, KSA, and many more
High-Quality work
Good Communication and patience
24/7 Availability
Client satisfaction is more important than Money
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Project scale:
Building
Building type:
Residential
•
Commercial
•
Office & workspace
Delivery style preference
Please inform the freelancer of any preferences or concerns regarding the use of AI tools in the completion and/or delivery of your order.
My Portfolio
FAQ
What information do you need to start?
I need the architectural plans (PDF or DWG)
What if my project doesn’t match one of the pricing packages? How will cost be determined?
Just send me a message with the project details and files. I’ll review the scope and send a custom quote and a detailed pricing list.
What software/tools do you use?
I perform load calculations using Coolcals(ACCA-recognized),HAP Software and follow ACCA Manual J/N, Manual D and Manual S for equipment selection and duct design. I prepare final contractor-ready drawings in AutoCAD and provide schedules in Excel/PDF.
What if I need revisions after the contract is closed?
Even after contract closure, I continue supporting clients until full satisfaction is achieved. All required revisions and assistance are provided free of cost. I never charge extra for post-delivery support. My main goal is complete customer satisfaction and long-term professional relationships.
Can I use the deliverables for city/town permit?
Yes — I prepare permit-ready documentation that many jurisdictions accept. I also assist with permit submission and answering reviewer comments when needed.
Are you familiar with US standards and codes?
Yes — I regularly follow ACCA protocols and US residential design practices. I’ve completed 79+ residential projects (I have successfully completed and submitted heating and cooling load calculations for 50+ projects, all of which passed verification and received approval.) for US clients.
What makes your service special?
ACCA-compliant load calculations and duct designs (Manuals J/N, D, S). Contractor-ready drawings and clear documentation. Fast turnaround and reliable communication. Extensive hands-on experience and permit support — proven results and happy clients.
Reviews
4 reviews for this Gig
| (3) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
T trong2026
United States
It was great working with Nitesh. He did provide professional service in a timely manner. He was very patient and really tried to understand the issues being presented and got them resolved. We would love to work with him again.
$100-$200
Price
6 days
Duration
N 
Seller's Response
Helpful?N nick_geonomic
United States
Nitesh knows his stuff! He completed detailed heating and cooling load calculations for a very large, complex residential home. 5 stars!
$100-$200
Price
12 days
Duration
N Seller's Response
Helpful?H h2energygroup
United States
Excellent work product and communication throughout the gig. Extremely responsive to our requests. Will absolutely use again.
$50-$100
Price
13 days
Duration
N Seller's Response
Helpful?C cgandara2318
United States
Profesional work
$50-$100
Price
3 days
Duration
N Seller's Response
Helpful?
Reviews
4 reviews for this Gig
| (3) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
T trong2026
United States
It was great working with Nitesh. He did provide professional service in a timely manner. He was very patient and really tried to understand the issues being presented and got them resolved. We would love to work with him again.
$100-$200
Price
6 days
Duration
N Seller's Response
Helpful?N nick_geonomic
United States
Nitesh knows his stuff! He completed detailed heating and cooling load calculations for a very large, complex residential home. 5 stars!
$100-$200
Price
12 days
Duration
N Seller's Response
Helpful?H h2energygroup
United States
Excellent work product and communication throughout the gig. Extremely responsive to our requests. Will absolutely use again.
$50-$100
Price
13 days
Duration
N Seller's Response
Helpful?C cgandara2318
United States
Profesional work
$50-$100
Price
3 days
Duration
N Seller's Response
Helpful?
