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$
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I will do heat pump sizing, duct design with manual j, s , d calculations
MEP permit set, Sprinkler Design, EV charger, Rooftop Unit
Licensed Professional Engineer (PE) helping contractors, builders, and property owners get permits approved faster across the USA. I specialize in MEP permit sets for tenant improvements, NFPA 13D res...
About this Gig
Need your heat pump or furnace sized right?
Oversized or undersized equipment wastes money and hurts comfort. I prepare Manual J load calculations, Manual S equipment selection, and Manual D duct design for homes and small buildings, ready for permits or rebates
What's included:
- Manual J room by room heating and cooling load calculation
- Manual S heat pump and equipment sizing report
- Manual D duct layout, sizing, and airflow (CFM) per room
- Register and return grille sizing
- Equipment and duct notes for your installer
- Permit ready PDF report and drawings
- One revision for comments
Ideal for new homes, additions, ADUs, heat pump retrofits, and furnace replacements.
Why choose me:
- Accurate loads, not rule of thumb sizing
- Clear reports contractors and inspectors accept
- Fast turnaround before the heating season peaks
- Plain language recommendations
To start, send floor plans, insulation and window details, the property address, and your equipment preference.
Message me before ordering so I can confirm scope and local requirements.
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.
Other Building Engineering Services I Offer
FAQ
What do I need to send to get started?
Send floor plans, insulation levels and window details, the property address, and your equipment preference if you have one. Message me before ordering so I can confirm scope.
What's the difference between Manual J, S, and D?
Manual J calculates your heating and cooling loads. Manual S selects equipment sized to those loads. Manual D designs the duct layout and airflow. Each package covers a different mix
Do you install the system?
No. I provide the calculations and design, and your HVAC contractor installs it. The report gives them a clear spec, so you can compare quotes and avoid oversized equipment
Will my city or rebate program accept the report?
The reports follow ACCA methods and are built for permit review. Requirements vary by city and program. Message me your address and any rebate rules before you order
How long does it take, and are revisions included?
Delivery is 3 to 8 days depending on the package. Standard includes 1 revision and Premium includes 2. Need it faster? Message me before you order
