Loxahatchee · Manual J & D Design
Manual J Load Calculation & Manual D Duct Design in Loxahatchee, 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 Loxahatchee, 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 Loxahatchee 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 Loxahatchee
Manual J Load Calculation & Manual D Duct Design in Loxahatchee, FL.
Loxahatchee homes rarely fit a rule of thumb. Lots are big, houses are often larger than average and many have been expanded with additions, enclosed patios or converted garages. Some sit in open sun with little shade, while others are tucked among tall pines and oaks, and that difference alone changes the cooling load. Swift runs Manual J load calculations in-house for the systems and duct projects we install in Loxahatchee, measuring each room so the equipment fits the home as it stands today. For larger houses, the room-by-room numbers also show whether one system can serve the whole home or whether a second system or zoning makes more sense for distant wings. From there, a Manual D duct design sizes every run so additions and far bedrooms get the air they need, keeping each bedroom within 3°F of the thermostat. Correct sizing also keeps humidity in check in the open, humid country west of the Turnpike.
About this service
Manual J Load Calculation & Manual D Duct Design in Loxahatchee
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 Loxahatchee.
Watch what to expect when our team shows up. Honest installs, careful technicians, the same standard on every Loxahatchee job.
Neighborhoods we serve
Local areas in Loxahatchee.
Manual J load calculations and Manual D duct design for Loxahatchee homes in The Acreage, Loxahatchee Groves, Fox Trail and along Northlake Boulevard, Okeechobee Boulevard, Seminole Pratt Whitney Road, Southern Boulevard and the lettered roads, including large custom homes, older ranch houses and homes with guest quarters or additions.
Local details
Manual J Load Calculation & Manual D Duct Design details for Loxahatchee.
For a Loxahatchee Manual J, we measure every room, including additions and converted spaces, and record window sizes, directions and glass types. Shading matters a lot here, so we note tall trees, porches and overhangs. We check ceiling heights, attic insulation and duct location, and ask how each space is used. The calculation produces heat and humidity loads for each room. Manual S then selects equipment with the right capacity and good dehumidification, and for larger homes it helps decide between one system, two systems or zoning. Manual D sizes each supply, return and trunk, often adding a dedicated trunk for distant wings and returns for every bedroom, and checks the total duct resistance against the blower. Manual T guides register and grille choices. If you're planning an addition, we design for the finished home. We review the plan with you, our installers build to it and we confirm the airflow when your Loxahatchee system is up and running.
Coverage map
Serving Loxahatchee.
Same-day service across every neighborhood and ZIP code below. No travel surcharges.
Neighborhoods we serve
- The Acreage
- Loxahatchee Groves
- Fox Trail
ZIP codes we cover
1 ZIP codes across Loxahatchee.
Nearby cities
Manual J Load Calculation & Manual D Duct Design in nearby cities.
We service these neighboring cities with the same standard, same response time, and no travel surcharges.
Got questions?
Frequently asked questions
Sometimes. A room-by-room Manual J shows how the load is spread across the house, and Manual D shows whether one duct system can deliver the air efficiently. For a large Loxahatchee home with distant wings or a big addition, two systems or zoning often provide steadier comfort, and the numbers make the case.
Shade can lower the cooling load considerably, especially on west- and south-facing walls and windows. Manual J accounts for shading, so a Loxahatchee home among tall trees may need less capacity than an identical house in full sun. Measuring the shading on each side of the house is better than guessing, and it can keep you from paying for capacity you will never use.
Yes. Share your plans and we'll run a Manual J on the home as it will be after the addition, design the ducts with Manual D and recommend equipment with Manual S. That way the new space is part of the design from day one instead of a branch tapped onto your existing Loxahatchee system.
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.
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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