Expert Review & Analysis
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Yes — Lennox furnaces are a premium-tier choice. Our editorial score is 4.8/5 based on published efficiency, climate fit, warranty, features, and price positioning. Lennox is associated with Lennox International; confirm the exact model platform, parts path, and coverage rather than assuming they are shared. Efficiency runs 80–99% AFUE with installed pricing in the $3.8k - $9.0k range. For a Long Island home, compare the exact matched system and written installation scope because design and commissioning can matter as much as the badge on the equipment.
Ratings are editorial comparison scores—not customer reviews, installation counts, or manufacturer endorsements.
A useful Lennox comparison starts with the exact indoor and outdoor model pairing—not the brand name alone. Home+ Air & Heat can review Lennox furnace options for homes in our covered Nassau County and western Suffolk service areas, then document whether the proposed equipment, capacity, electrical scope, and installation approach fit the project.
Before work is authorized, ask for the design method, AHRI match where applicable, installer or dealer qualification required by the manufacturer, registration responsibility, parts coverage, labor coverage, exclusions, and current incentive assumptions in writing. Those details vary by model, project, contractor status, installation date, and current program rules.
Lennox equipment is made by Lennox International, founded in 1895 and headquartered in Richardson, Texas. Residential units are produced in Marshall, Texas. Lennox sells through a controlled dealer network and uses more proprietary parts than most competitors, which affects who can service the equipment later.
Brands from the same manufacturer: Armstrong Air, AirEase, Ducane, Concord. Equipment sold under sibling labels often shares components and plants, so the installing contractor — not the badge — usually decides how the system performs.
Planning a Lennox project on Long Island? See how we install and size it for Nassau & western Suffolk homes →
Lennox rates 4.8 out of 5 in our premium-tier furnace assessment. The scoring reflects build quality, parts availability on Long Island, warranty terms, and how the equipment holds up in the homes we service. Best for: Best Efficiency. Reviews are only half the picture — sizing and installation quality drive most of the failures we get called to.
This is Home+ Air & Heat's own editorial assessment as an insured, EPA 608-certified installing contractor, not an average of customer star ratings.
Same manufacturer, different equipment focus—so you get intent-matched detail without duplicate canonical URLs.
Lennox has earned its reputation as one of the premier furnace manufacturers. Here's why our EPA 608-certified technicians recommend Lennox to homeowners looking for the best in home heating.
Lifetime heat exchanger warranty provides unmatched peace of mind.
Up to 99% AFUE means more savings every heating season.
A legacy of manufacturing excellence and continuous innovation.
Attention to every detail, from heat exchanger to cabinet construction.
Detailed analysis based on our expert evaluation
"The built-in carbon monoxide detection on select models eliminates the need for separate detectors near the unit"
— Home+ Air HVAC Expert Assessment
Lennox has built its reputation on engineering the most efficient furnaces money can buy. Their SLP99V model holds the distinction of being the only gas furnace on the market with a 99% AFUE rating—literally extracting every possible BTU from the fuel consumed. In Nassau County, we primarily install Lennox in larger homes throughout Manhasset, Great Neck, and Old Westbury where energy savings compound significantly over time.
The precision-engineered variable-capacity technology operates at exactly the level needed—no more, no less. This translates to exceptionally even temperatures throughout multi-story homes, eliminating the hot and cold spots common in Long Island Colonials and split-levels. The SilentComfort technology operates at just 37 decibels, making it the quietest furnace we install.
What makes Lennox special for Nassau County homes is their sealed combustion design combined with stainless steel secondary heat exchangers. Given our coastal humidity and salt air within 10 miles of the shore, this corrosion resistance extends equipment life significantly. The iComfort S30 thermostat integration provides geofencing, weather-adaptive adjustments, and remote diagnostics.
Parts availability through Lennox Premier Dealers and F.W. Webb is reliable for common components, though specialty parts for the SLP99V occasionally require 2-3 day shipping. The 20-year heat exchanger warranty reflects their confidence in build quality. All high-efficiency models qualify for maximum PSEG Long Island rebates and federal energy tax credits.
Installation notes for Long Island: The compact footprint of the SL-series fits perfectly in the tight mechanical closets common in Great Neck and Roslyn homes. The built-in carbon monoxide detection on select models eliminates the need for separate detectors near the unit.
Our bottom line: Lennox is worth the premium for homeowners who prioritize maximum efficiency and whisper-quiet operation. The SLP99V pays for itself over 15+ years in fuel savings, particularly for homes with high heating demands (3,000+ sq ft or poor insulation). If efficiency is your top priority and budget allows, Lennox is unmatched.
Lennox is worth the investment for homeowners who prioritize quality, efficiency, and long-term reliability. The higher upfront cost is offset by energy savings and exceptional warranty coverage.
Home+ Air HVAC Team
EPA 608-Certified HVAC Professionals • Nassau County Experts
Our recommended Lennox furnaces for Nassau County homeowners.
The industrys most efficient gas furnace with Precise Comfort technology and built-in carbon monoxide detection
Best for: Energy-conscious homeowners wanting maximum efficiency
$7,000 - $9,000installed
View Full DetailsThese are the most popular and highly-rated Lennox furnace models we recommend based on our installation experience in Nassau County.
Model: SLP99V
Estimated Price (Installed)
$7,000 - $9,000
The industrys most efficient gas furnace with Precise Comfort technology and built-in carbon monoxide detection
Best For
Energy-conscious homeowners wanting maximum efficiency
Model: SL297NV
Estimated Price (Installed)
$6,500 - $9,000
The Lennox SL297NV features 97% AFUE efficiency with variable-capacity modulation for the ultimate in comfort and efficiency, operating as quietly as 37 decibels.
Best For
Luxury homeowners wanting whisper-quiet operation
Model: EL296V
Estimated Price (Installed)
$4,500 - $6,500
The Lennox EL296V delivers 96% AFUE efficiency with two-stage heating and variable-speed blower, offering excellent comfort at a more accessible price.
Best For
Homeowners seeking Lennox quality at mid-tier pricing
Note: Prices shown are estimates for typical Nassau County installations and may vary based on your home's specific requirements, ductwork condition, and any necessary modifications. Contact us for a precise quote.
Lennox furnaces range from $3.8k - $9.0k installed. Here's a detailed breakdown by system tier and home size.
| Tier | Price Range | Efficiency | Features |
|---|---|---|---|
| Entry-Level | $3,800 - $4,940 | 80% AFUE | Single-stage, basic |
| Mid-Tier | $5,760 - $7,040 | 90% AFUE | Two-stage, improved |
| Premium | $7,650 - $9,000 | 99% AFUE | Modulating, variable-speed |
| Home Size | Price Range | Typical BTU |
|---|---|---|
| Small (1,000 sq ft) | $3,800 - $5,760 | 40,000 - 60,000 BTU |
| Medium (1,500 sq ft) | $5,440 - $7,650 | 60,000 - 80,000 BTU |
| Large (2,000+ sq ft) | $6,400 - $9,000 | 80,000 - 120,000 BTU |
Get an Exact Quote for Your Home
Financing options are subject to credit approval and the lender's current terms. Review the full offer before applying.
Recent Google reviews
Recent public reviews from homeowners who hired Home+ Air & Heat.
Devika Ruwali
Levittown, NY · Dec 2025
“5 stars! I called about a gas furnace issue in Levittown and they were here incredibly fast. The technician diagnosed the problem and had us back up and running quickly.”
Matthew Hoosein
Long Island, NY · Jan 2026
“I had a great experience with Homets Air and Heat. My heating system stopped working the other day, and they responded quickly with a clear explanation and prompt repair.”
Lochana Subedi
Hicksville, NY · Jan 2026
“I am a tenant in Hicksville, and when my heat went out during this cold stretch, it was a total emergency. The technician quickly resolved the heating issue.”
Khim Bhattarai
Long Island, NY · Jan 2026
“I hired them to fix my heat as it stopped working. They were quick to diagnose and fix it even during late hours.”
Devendra Bhattarai
Jamaica, NY · Dec 2025
“Heat stopped working in my Jamaica, NY home and these guys came out fast. They explained what was wrong, fixed it the same visit, and were very reasonable.”
Amoon Mainali
Long Island, NY · Dec 2025
“The technician was super efficient. My heating has been giving me problems and I needed a fast service. It has been so cold and snowy, their fast paced team and their quick arrival made all the difference.”
Here's where Lennox furnaces fit best across Long Island housing types.
Lennox's 99% AFUE efficiency and variable-speed technology match the investment-grade expectations of North Shore estates.
Lennox's modulating technology eliminates hot/cold spots common in multi-story homes—critical for Long Island's variable winter weather.
Lennox's insulated cabinet and variable-speed blower run quietly—perfect for homes where the furnace is near bedrooms or living spaces.
Installer Note: These are general guidelines based on our Nassau County experience. Every home is unique—we'll assess your specific heating needs during our free consultation.
On the job
Photos from jobs where this brand was part of the work.
MaintenancePlainview, NY·Commercial rooftop units
See the job
Replacement & installationEast Norwich, NY·Gas furnace
See the job
Photos enhanced for clarity.
Complete breakdown of Lennox's warranty protection for your investment.
Parts Warranty
10 years
Heat Exchanger
Lifetime (limited)
Labor Warranty
1 year (extended available)
Extended Option
Up to 10 years comprehensive
Answer a few quick questions about your home and preferences, and we'll recommend the best furnace brands for your specific needs.
See how Lennox compares to other premium tier furnace brands.
| Feature |
|
 |
 |
|---|---|---|---|
| Rating | 4.85 | 4.9 | 4.75 |
| Max AFUE | 99% | 97.3% | 97% |
| Starting Price | $3,800 | $3,400 | $2,700 |
| Heat Exchanger Warranty | Lifetime (limited) | Lifetime (limited) | Lifetime (limited) |
| Parts Warranty | 10 years | 10 years | 10 years |
$3.4k - $8.2k • 97.3% AFUE
Trane Strengths
Trane Weaknesses
Why Choose Lennox Over Trane?
Better efficiency (99% vs 97.3% AFUE)
$2.7k - $6.2k • 97% AFUE
American Standard Strengths
American Standard Weaknesses
Why Choose Lennox Over American Standard?
Higher expert rating (4.85 vs 4.75)
Get answers to the most common questions about Lennox furnaces.
Lennox is a premium choice for homeowners who demand the best in efficiency, reliability, and comfort. With up to 99% AFUE efficiency and a Lifetime (limited) heat exchanger warranty, this is an investment that pays dividends in comfort and energy savings.
Homeowners who prioritize long-term value, maximum efficiency, and are willing to invest in premium quality.
Free estimates • No obligation • EPA-certified technicians
Continue your research with these helpful resources.
Learn more about furnace types and find the right fit for your home:
Interested in a Lennox furnace? Get a free quote from our EPA 608-certified team.
Typical installed prices for Lennox furnaces in Nassau County:
*Estimates based on typical installations. Your actual price may vary.
Our Rating
4.85/5
A great furnace installer on Long Island will outperform a premium unit installed poorly. Use the verification checklist and three-estimate worksheet before you sign anything.
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