Hobe Sound · Manual J & D Design
Manual J Load Calculation & Manual D Duct Design in Hobe Sound, FL
In-house Manual J load calculations and Manual D duct designs, so your system is right-sized and every room gets the air it needs. Serving Hobe Sound, FL. 4.8★ on Google with 229+ reviews.
18+
Years in business
4.8★
229+ Google reviews
Licensed
FL #CAC1820211
A+
BBB Accredited
24 / 7
Emergency response
Why Swift AC
What you get with our manual j load calculation & manual d duct design.
Four things we don't compromise on, every job, every customer.
Why this matters
Built for the home you live in.
Your AC is not a piece of equipment. It is the difference between kids sleeping through hot August nights and a hallway fan war at 2 a.m.
We treat every install and repair the way we would want our own family taken care of. Properly sized systems. Honest diagnostics. Clean work that lasts. Because the people you love deserve a home that stays cool, dry, and comfortable, year after year, without you having to think about it.
Why Swift AC
The standard South Florida homeowners trust.
We earn our reputation one job at a time. Every system we install, every repair we make, every customer we serve carries our 100% satisfaction guarantee.
Offers for Hobe Sound customers
Save on quality HVAC service.
Real, simple deals on the work you actually need. No mystery pricing, no bait and switch.
What customers say
4.8★ on Google with 229+ reviews.
We earn our reputation one job at a time. Here's what your neighbors are saying.
“When you are looking for a reliable, quick and honest HVAC team this is the company you want to deal with. Reach out, you will be wowed. Also, they are nice guys and will spend the time to explain your needs.”
David Ragheb
West Palm Beach
...and 226+ more on Google.
Book your manual j & d design in under 30 seconds.
A real Swift AC team member answers, every time. Same-day service across South Florida.
About Hobe Sound
Manual J Load Calculation & Manual D Duct Design in Hobe Sound, FL.
A home tucked under the pines near Jonathan Dickinson State Park and a waterfront home facing the Indian River can be the same size and need very different air conditioners. Shade, window area, orientation and humidity change the load far more than square footage. Swift runs Manual J load calculations in-house for the systems and duct projects we install in Hobe Sound, measuring each room so the equipment fits the house. That's important in a place this humid. An oversized system cools quickly and shuts off before it removes much moisture, which is why so many Hobe Sound homes feel cool but sticky. A right-sized system runs longer, steadier cycles and keeps the house drier, including seasonal homes that need humidity control while they're closed. The room-by-room loads also drive a Manual D duct design that sends the right air to each room, from the guest suite to the sunroom, and keeps every bedroom within 3°F of the thermostat.
About this service
Manual J Load Calculation & Manual D Duct Design in Hobe Sound
Most air conditioners in South Florida were sized with a rule of thumb, so many tons for so many square feet, or simply matched to the unit they replaced. That shortcut ignores what really drives the load in a Florida home: window area and direction, glass type, shading, insulation, ceiling heights, duct location, air leakage and the moisture the system has to remove. An oversized system cools fast, shuts off and leaves the house clammy. An undersized one runs nonstop. And without a duct design, even a perfectly sized system can't get the right amount of air to each room.
Swift Air Conditioning does this work in-house, using the ACCA standards. Manual J is the room-by-room heating and cooling load calculation. Manual S uses those loads to select equipment with the right capacity and enough moisture removal for our climate. Manual D designs the duct system, sizing each supply, trunk and return so the blower can deliver the airflow each room needs. Manual T guides the choice of registers and grilles so the air mixes well in every room.
The design target is the comfort guideline in ACCA's Manual RS: each room within 3°F of the thermostat while cooling. We build every replacement and duct project to the design, then measure airflow and temperatures after installation to confirm it performs.
Florida's energy code calls for heating and cooling equipment in new homes to be sized with Manual S from a Manual J load calculation, and the residential code points to Manual D for duct design. We bring the same discipline to replacements, additions and renovations, because it's what makes a home comfortable. Call (561) 685-8408 to schedule an in-home visit.
Ruud Pro Partner
Real Swift work in Hobe Sound.
Watch what to expect when our team shows up. Honest installs, careful technicians, the same standard on every Hobe Sound job.
Neighborhoods we serve
Local areas in Hobe Sound.
Manual J and Manual D design for Hobe Sound homes in Banner Lake, along US-1, on the riverfront and in the gated communities near Jonathan Dickinson State Park and the coast, along Bridge Road, SE Dixie Highway and County Road 708.
Local details
Manual J Load Calculation & Manual D Duct Design details for Hobe Sound.
For a Hobe Sound Manual J, shading gets as much attention as glass. We note tall pines, oaks and porches that shade walls and roofs, then measure every room and record each window and door by size, direction and glass type. Riverfront rooms and sunrooms are calculated individually because they usually carry the heaviest loads. We check the attic insulation and duct location, and we ask whether the home is occupied year-round or seasonally, since that affects how we approach humidity control. The calculation gives each room a heat and moisture load. Manual S then helps us choose equipment that handles both, favoring systems that dehumidify well at lower capacity. Manual D sizes each supply and return, provides return paths for bedrooms and keeps the duct system's resistance within what the blower can handle, while Manual T guides register choices. We review the design with you and verify the finished Hobe Sound system with airflow readings.
Coverage map
Serving Hobe Sound.
Same-day service across every neighborhood and ZIP code below. No travel surcharges.
Neighborhoods we serve
- Jonathan Dickinson State Park
- Banner Lake
- Hobe Sound National Wildlife Refuge
ZIP codes we cover
1 ZIP codes across Hobe Sound.
Got questions?
Frequently asked questions
It can. Shade on the roof and on east-, west- and south-facing walls and windows cuts solar heat gain noticeably. Manual J accounts for shading, so a Hobe Sound home under a canopy may need less capacity than a similar home in full sun. Measuring it keeps you from paying for capacity you don't need.
We calculate the full heat and moisture loads with Manual J, then use Manual S to choose equipment that dehumidifies well at low capacity, which helps a closed-up Hobe Sound home stay dry. We also talk through thermostat and humidity settings for the months you're away.
Yes. Sunrooms carry high loads from their glass, so we calculate them separately in the Manual J and give them properly sized supplies and a return path in the Manual D design. That keeps a new Hobe Sound sunroom comfortable without robbing air from the rest of the house.
Manual J is the ACCA standard for calculating how much heating and cooling each room of a home needs. It accounts for walls, windows and their direction, glass type, shading, insulation, ceiling heights, duct location, air leakage and occupants, and it calculates the moisture load as well as the heat load.
Manual J calculates the loads. Manual S selects equipment that matches those loads, including enough moisture removal. Manual D designs the duct system that delivers the right airflow to each room, and Manual T guides register and grille selection. Used together, they produce a system that's sized right and delivers air evenly.
Related services
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Air Conditioning Installation
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Learn moreDuct Replacement
Whole-home duct replacement designed in-house with Manual J and Manual D, then sealed, insulated and balanced. Free in-home quote.
Learn moreAirflow Diagnostic & Duct Balancing Assessment
A measured airflow diagnostic for hot and cold rooms: static pressure, room-by-room airflow, duct leakage and thermal imaging, then balancing.
Learn more
Ready when you are
Comfort done right. Let's get started.
Free estimates on installs. Honest diagnostics on repairs. Same-day service across South Florida and a real human on the other end of the line, every time.
Service area
Palm Beach · Broward · Martin · St. Lucie
Licensed FL #CAC1820211