Lennox Authorized Dealer in South Florida

TL;DR: Air Nifty is a Lennox Authorized Dealer serving Miami-Dade, Broward, and Palm Beach counties under Florida HVAC license CAC1824313. We install the Dave Lennox Signature Collection (the SL-series variable-capacity tier that pairs with the iComfort thermostat platform), the Elite Series two-stage tier, and the Merit Series single-stage tier, all sized to your home with an ACCA Manual J load calculation. Lennox traces back to a Marshalltown, Iowa machine shop founded by Dave Lennox in 1895, and the brand still designs and engineers residential HVAC out of its U.S. operations more than 130 years later.

What Lennox installs Air Nifty handles

Air Nifty is a Lennox Authorized Dealer with annual factory training on the current Lennox lineup and active warranty support relationships maintained with the manufacturer (Lennox dealer program page). We install the full residential Lennox catalog on new construction, replacements, and zoned retrofits across Miami-Dade, Broward, and Palm Beach counties.

Air Nifty also holds the Rheem Preferred Dealer tier, so we can match equipment to the home rather than to a single brand.

Lennox sells residential air conditioning in three branded tiers identified by the SL, EL, and ML model prefixes. The Dave Lennox Signature Collection (SL-series) is the variable-capacity flagship tier that pairs with the iComfort communicating thermostat. The Elite Series (EL-series) is the two-stage mid-range tier. The Merit Series (ML-series) is the single-stage entry tier (Lennox residential air conditioner lineup). Each tier solves a different combination of cooling load, humidity behavior, and household budget, and we walk you through the tradeoffs at the in-home assessment so you pick the tier that fits your home, not the one that fits our quota.

Our work is backed by Florida HVAC contractor license CAC1824313, a Class A Air Conditioning Contractor license verified through the Florida DBPR Construction Industry Licensing Board public registry (Florida DBPR public license lookup). Air Nifty Air Conditioning is a family-operated South Florida HVAC contractor founded in 1997 with offices in Margate and Palmetto Bay (Air Nifty company page).

A typical Lennox install brings in the outdoor condenser, the matched indoor air handler or coil, the line set, the condensate drain, the iComfort or ComfortSense thermostat (depending on tier), and the ductwork tie-ins on a single coordinated visit. Permit pull, EPA-rule refrigerant recovery from the existing equipment, hurricane-rated outdoor pad mount, and a startup commissioning test all happen on the same job ticket before we hand the system over.

Why we install Lennox in South Florida

Three things put Lennox at the top of our brand list for Florida humidity work.

First is the iComfort communicating ecosystem. The Dave Lennox Signature Collection units (the SL-series) talk natively to the iComfort S30 or S40 smart thermostat and adjust output in fractional increments. Lennox publishes that the SL28XCV flagship can run as low as roughly 30 percent of its rated capacity for the bulk of the cooling season, with outdoor sound levels published in the 56 to 73 decibel range (Lennox SL28XCV product page). For a Florida house in July, that long, low runtime is what actually pulls humidity out of the indoor air. A single-stage system clicks on, hits the setpoint quickly, and clicks off before it has time to dehumidify. The SL28XCV ramps up, holds the dewpoint down, and stays there. Average summer relative humidity across South Florida sits at 70 to 80 percent (NOAA NCEI U.S. Climate Normals, 2020), so dewpoint control is not a nice-to-have.

Second is the published efficiency ceiling. The SL28XCV is rated up to 28 SEER (25.8 SEER2), the highest published rating on a residential split system from any major brand (Lennox SL28XCV product page). For homeowners running cooling 9 to 10 months a year, the gap between an entry-tier 14.3 SEER2 system and a 25.8 SEER2 Signature Collection variable-capacity system shows up on every FPL bill. Equipment quality only goes so far if the install isn’t done right. Improper installation alone can knock up to 30 percent off an HVAC system’s efficiency (ENERGY STAR), so the dealer tier and the install crew matter as much as the brand on the box.

Third is the heritage. Lennox traces back to Dave Lennox’s machine shop in Marshalltown, Iowa, in 1895, where he helped build the first riveted-steel furnace as an alternative to the cast-iron furnaces of the era. The company still runs major engineering and manufacturing operations in Marshalltown today, alongside its corporate headquarters in Richardson, Texas (Lennox International company history). For homeowners who want a U.S.-engineered system with a long product history, Lennox is the one of the few residential HVAC brands that can credibly tell that story.

The tradeoff, at the coast, is corrosion. Outdoor coil service life on uncoated equipment installed near the coast can run 30 to 50 percent shorter than comparable inland installs per manufacturer coastal install guidance (Carrier residential coastal install considerations). For coastal Lennox installs in cities like Hollywood, Boca Raton, Boynton Beach, and West Palm Beach, we recommend the coated-coil options Lennox offers on the Signature Collection tier (and on most Elite Series configurations), plus quarterly outdoor-unit rinses through the wet season. Inland installs in Plantation, Coral Springs, Sunrise, and Weston don’t carry the same coastal-corrosion premium, and the Merit Series single-stage tier becomes a sensible budget option for replacements where humidity behavior is already manageable.

What Authorized Dealer means (and what it isn’t)

Lennox publishes two named dealer designations for residential HVAC contractors. The top is the Lennox Premier Dealer program, which requires a minimum 4.0-star public review average across at least ten Google reviews, annual Premier-tier training, mandatory customer satisfaction performance, and participation in the brand’s Consumer Advertising and Promotions program (LennoxPros Premier Dealer requirements). The Premier tier earns priority listing on Lennox.com and an enhanced co-op marketing pool.

The Lennox Authorized Dealer tier sits below Premier. The Authorized tier requires annual factory training on the current Lennox residential lineup, installation to published Lennox specifications, and qualification for the Lennox manufacturer warranty when registration is filed correctly within the post-install window. Multiple dealers in any given South Florida market hold the Authorized tier at the same time, so it is not an exclusive designation.

Air Nifty holds the Authorized Dealer tier, not the Premier Dealer tier. We name that distinction up front because both are real Lennox programs and they are not the same thing. The Authorized tier is the tier you can verify against a Lennox dealer locator lookup and the tier that backs the warranty support on a Lennox install we run. If you want the Premier tier specifically, you should ask the contractor to show you their current-year Premier Dealer certification before the contract gets signed.

Sizing a Lennox install with Manual J

ACCA Manual J is the residential industry standard for HVAC load calculation, published by the Air Conditioning Contractors of America (ACCA Manual J Residential Load Calculation Standard). The math is brand-neutral, but the equipment selection that follows the math is where the Lennox tier choice actually shows up.

A Manual J load calculation gives us the home’s design cooling load in BTU and tells us where the latent (moisture) load sits relative to the sensible (temperature) load. In humid South Florida climates, the latent load is the part most contractors get wrong, and that is where the Lennox tier conversation starts. A Signature Collection unit ramps capacity up and down on the iComfort platform, which is the closest match to a Florida latent load that varies hour by hour. An Elite Series two-stage unit handles the same load less precisely but at a friendlier installed price. A Merit Series single-stage unit covers the budget end and is a fair fit on smaller, well-insulated homes where the load profile is flatter.

Right-sizing matters more in Florida than in dry-cooling markets because oversizing a system in a humid climate creates two compounding problems. The unit short-cycles instead of running long enough to pull moisture, and the indoor air stays uncomfortable even when the thermostat says it is at setpoint. Undersizing puts the compressor under continuous strain it was not designed for and shortens equipment life.

A well-installed central AC system that gets regular professional maintenance reaches the upper end of its service life, while a neglected one fails years sooner. Right-sizing with Manual J protects that upper end. Pairing a properly sized Lennox install with annual maintenance, a surge protector on the outdoor disconnect, and a coastal coil rinse schedule (where applicable) is what carries a Florida home to the long end of that range.

Florida code and SEER2 for Lennox installs

Florida sits in the federal Southeast region for HVAC efficiency standards. New split-system central AC units under 45,000 BTU sold and installed in Florida must meet 14.3 SEER2 (the federal minimum for the Southeast region under the U.S. Department of Energy’s 2023 standard, equivalent to about 15 SEER under the prior test method), with 13.8 SEER2 required for larger units (U.S. Department of Energy, 2023). Split-system heat pumps follow the national rule of 14.3 SEER2 and 7.5 HSPF2 (ENERGY STAR/DOE). Every tier in the Lennox residential lineup meets or exceeds that floor. The Merit Series clears it. The Elite Series clears it with margin. The Signature Collection SL28XCV clears it by a country mile at up to 25.8 SEER2.

ENERGY STAR-rated central AC units start at 16+ SEER2 in the South region per ENERGY STAR program requirements, with the threshold required for IRS Section 25C tax credit eligibility on installs placed in service through Dec 31, 2025 (ENERGY STAR Central Air Conditioning Program Requirements). If you are planning to claim the IRS Section 25C credit on a 2025 install, the Elite Series or Signature Collection unit we recommend will meet the ENERGY STAR threshold.

Hurricane-zone mounting is the other code conversation. Florida Building Code amendments in Miami-Dade and Broward counties require outdoor HVAC units to be set to High-Velocity Hurricane Zone provisions, which include rated hurricane straps and properly anchored pads. Palm Beach county uses the standard Florida Building Code wind-load provisions (Florida Building Commission Florida Building Code). Every outdoor Lennox condenser we install gets mounted to the applicable county standard, with the mounting documented on the permit application.

Where we install Lennox

Air Nifty serves twelve South Florida cities listed on the airnifty.com homepage including Boca Raton, Coral Springs, Fort Lauderdale, Deerfield Beach, Delray Beach, Sunrise, Plantation, Pembroke Pines, Boynton Beach, West Palm Beach, Hollywood, and Weston across Miami-Dade, Broward, and Palm Beach counties (Air Nifty homepage Areas We Serve block). Top-served cities for Lennox installs include Coral Springs, Fort Lauderdale, Boca Raton, Plantation, and Hollywood. Free in-home assessments for new Lennox installs are available across the full service area.

FAQs

How long does a Lennox install take?

A like-for-like Lennox swap, where the existing pad, line set, and ductwork stay in place, is usually a single-day install in the 6-to-9-hour range from arrival to startup commissioning. A Signature Collection SL-series install adds time on the back end because the iComfort thermostat needs to be paired with the outdoor unit, the air handler, and any zoning equipment before the system can be commissioned. An Elite Series or Merit Series swap with a standard ComfortSense thermostat typically completes faster. Installs that pull in new ductwork, additional return drops, or an air handler relocation can run a second day. The county permit is filed before install day and the final inspection is scheduled separately.

What Lennox tier suits a coastal Florida home?

For coastal homes in Hollywood, Boca Raton, Boynton Beach, or West Palm Beach, the Signature Collection SL-series is our default recommendation because variable-capacity runtime is the most reliable defense against summer humidity. Coated-coil corrosion protection is available on the Signature Collection tier and on most Elite Series configurations. For inland homes in Plantation, Coral Springs, Sunrise, or Weston, the Elite Series two-stage often hits the right cost-to-comfort balance. The Merit Series single-stage suits replacements where the budget is the binding constraint and the home’s load is small or flat enough that single-stage cycling is not a humidity problem.

Are free in-home assessments available for a Lennox install?

Yes. Air Nifty runs unconditional free in-home assessments for new Lennox installs across the three counties we serve. The assessment covers a full ACCA Manual J load calculation, a ductwork condition inspection, an outdoor unit location review against the applicable county hurricane code, and a written quote with the Signature, Elite, and Merit tier options laid out side by side so you can see the price-versus-performance picture before you commit.

What efficiency rating does my Lennox unit need to meet under Florida code?

Florida is in the federal Southeast region. New split-system central AC under 45,000 BTU must meet 14.3 SEER2 (the DOE 2023 minimum, equivalent to about 15 SEER under the prior test method). Larger units need 13.8 SEER2. Heat pumps follow the national rule of 14.3 SEER2 and 7.5 HSPF2. Every tier on the Lennox residential AC lineup meets or exceeds those floors. ENERGY STAR equipment starts at 16+ SEER2 in the South region and is the threshold for IRS Section 25C tax credit eligibility on installs placed in service through Dec 31, 2025.

Who handles the Lennox manufacturer warranty registration?

Air Nifty registers your Lennox system before our crew leaves the site and walks you through the warranty terms during the post-install handoff. Lennox requires online warranty registration within 60 days of the install date for full parts coverage on most residential equipment. If the registration is filed after the 60-day window, the warranty defaults to a shorter base coverage period. Our crew handles the registration on every Lennox install so the homeowner does not have to track that deadline.

More from our team: our Daikin Comfort Pro lineup. Air Nifty works throughout the area, including the Miami area and Weston.

About the Author

Sean Daly is the owner of Air Nifty Air Conditioning, a family-operated South Florida HVAC contractor founded in 1997. Air Nifty holds Florida HVAC contractor license CAC1824313 and operates from offices in Margate and Palmetto Bay, serving Miami-Dade, Broward, and Palm Beach counties.