Chicago's Authorized Lennox dealer Since 2010
D's Air & Heating is a Authorized Local Chicago Lennox dealer since 2010.
Lennox SL280V
Dave Lennox Signature® Collection
Up to 80% AFUE · Two-Stage Variable-Speed
Up to 80% AFUE Dave Lennox Signature® Collection. Installed by D's Air & Heating, Inc. — Chicago's authorized Lennox dealer since 2010.
Sale Price
$3,839
Installed Price
$7,039
The Lennox SL280V is the 80% AFUE model in the Dave Lennox Signature® Collection gas furnace lineup. It combines a two-stage gas valve with a variable-speed ECM blower motor — delivering Signature Collection comfort and quiet operation at 80% AFUE efficiency. For Chicago homes where a condensing 90%+ AFUE furnace is not feasible due to venting constraints, the SL280V provides the highest level of comfort available in an 80% AFUE configuration.
The SL280V's two-stage gas valve operates at low fire (approximately 65%) during mild weather and full fire only when outdoor temperatures demand it. Combined with the variable-speed blower, this delivers longer, quieter heating cycles that maintain more consistent temperatures and remove more humidity from the air compared to single-stage 80% AFUE furnaces. The SL280V is iComfort® Ready, enabling integration with the Lennox S40 Smart Thermostat for remote monitoring and diagnostics.
D's Air & Heating, Inc. installs the SL280V throughout Chicago and the surrounding suburbs. Every installation includes a free Manual J heat load calculation, City of Chicago mechanical permit, city inspection coordination, and Lennox 10-Year Parts Warranty registration. Call (773) 940-0965 to schedule your free in-home estimate.
Why D's Air & Heating, Inc. Recommends the Lennox SL280V
Technical Specifications — Lennox SL280V
| Model Number | SL280V |
| Product Category | Gas Furnace |
| Brand | Lennox |
| Product Series | Dave Lennox Signature® Collection |
| Equipment Type | Gas Furnace |
| AFUE Rating | Up to 80% AFUE |
| Stage | Two-Stage |
| Blower Type | Variable-Speed ECM |
| Gas Valve | Two-Stage |
| Fuel Type | Natural Gas (LP convertible) |
| Heating Capacity | 135,000 BTU |
| Configuration | Upflow (UH) |
| Venting | B-vent or direct vent |
| iComfort Compatibility | iComfort® Ready — S40 Smart Thermostat |
| Warranty | 10-Year Limited Parts (registered within 90 days) |
| Sale Price | $3,839 |
| Installed Price | $7,039 |
Lennox SL280V — Installed Pricing
Installed price includes equipment, labor, permit, and startup. *Local taxes may apply.
| Model / BTU | Equipment Sale | Installed Price | Financing |
|---|---|---|---|
| SL280UH070V36AK — 70K BTU Upflow | $3,947 | $7,147 | Available |
| SL280UH090V36BK — 90K BTU Upflow | $4,160 | $7,360 | Available |
| SL280UH090V48BK — 90K BTU Upflow | $4,369 | $7,569 | Available |
| SL280UH090V60CK — 90K BTU Upflow | $4,576 | $7,776 | Available |
| SL280UH110V60CK — 110K BTU Upflow | $4,701 | $7,901 | Available |
| SL280UH135V60DK — 135K BTU Upflow | $4,785 | $7,985 | Available |
| SL280DF070V36AK — 70K BTU Downflow | $4,268 | $7,468 | Available |
| SL280DF090V48BK — 90K BTU Downflow | $4,888 | $8,088 | Available |
| SL280DF090V60CK — 90K BTU Downflow | $4,952 | $8,152 | Available |
| SL280DF110V60CK — 110K BTU Downflow | $5,108 | $8,308 | Available |
| SL280UH070XV36AK — 70K BTU Low NOx | $3,839 | $7,039 | Available |
| SL280UH090XV48BK — 90K BTU Low NOx | $4,354 | $7,554 | Available |
| SL280UH090XV60CK — 90K BTU Low NOx | $4,631 | $7,831 | Available |
| SL280UH110XV60CK — 110K BTU Low NOx | $4,539 | $7,739 | Available |
| SL280UH060NV36AK — 60K BTU Ultra Low NOx | $10,120 | $13,320 | Available |
| SL280UH080NV48BK — 80K BTU Ultra Low NOx | $11,220 | $14,420 | Available |
| SL280UH080NV60CK — 80K BTU Ultra Low NOx | $11,440 | $14,640 | Available |
| SL280UH100NV60CK — 100K BTU Ultra Low NOx | $11,660 | $14,860 | Available |
| SL280DF060NV36BK — 60K BTU Ultra Low NOx DF | $10,780 | $13,980 | Available |
| SL280DF080NV60CK — 80K BTU Ultra Low NOx DF | $12,540 | $15,740 | Available |
SL280UH070V36AK — 70K BTU Upflow
$3,947
$7,147
SL280UH090V36BK — 90K BTU Upflow
$4,160
$7,360
SL280UH090V48BK — 90K BTU Upflow
$4,369
$7,569
SL280UH090V60CK — 90K BTU Upflow
$4,576
$7,776
SL280UH110V60CK — 110K BTU Upflow
$4,701
$7,901
SL280UH135V60DK — 135K BTU Upflow
$4,785
$7,985
SL280DF070V36AK — 70K BTU Downflow
$4,268
$7,468
SL280DF090V48BK — 90K BTU Downflow
$4,888
$8,088
SL280DF090V60CK — 90K BTU Downflow
$4,952
$8,152
SL280DF110V60CK — 110K BTU Downflow
$5,108
$8,308
SL280UH070XV36AK — 70K BTU Low NOx
$3,839
$7,039
SL280UH090XV48BK — 90K BTU Low NOx
$4,354
$7,554
SL280UH090XV60CK — 90K BTU Low NOx
$4,631
$7,831
SL280UH110XV60CK — 110K BTU Low NOx
$4,539
$7,739
SL280UH060NV36AK — 60K BTU Ultra Low NOx
$10,120
$13,320
SL280UH080NV48BK — 80K BTU Ultra Low NOx
$11,220
$14,420
SL280UH080NV60CK — 80K BTU Ultra Low NOx
$11,440
$14,640
SL280UH100NV60CK — 100K BTU Ultra Low NOx
$11,660
$14,860
SL280DF060NV36BK — 60K BTU Ultra Low NOx DF
$10,780
$13,980
SL280DF080NV60CK — 80K BTU Ultra Low NOx DF
$12,540
$15,740
*Local taxes may apply. Financing available for qualified customers. Prices subject to change.
What's Included — Lennox SL280V Installation
Scope of Work
- Free in-home Manual J heat load calculation to determine correct furnace size
- Removal and disposal of existing furnace
- Installation of new Lennox furnace in existing or new location
- Gas line inspection — extension or upgrade quoted separately if required
- Flue venting inspection and replacement as required by code
- Electrical connection and wiring inspection
- Condensate drain installation (90%+ AFUE models)
- Thermostat verification and programming
- City of Chicago mechanical permit pulled and inspection scheduled
- Lennox 10-Year Parts Warranty registered at installation
- D's Air 2-Year Workmanship Warranty applied
- Post-installation system performance verification and combustion analysis
Equipment & Materials
- Lennox furnace unit (model as specified)
- PVC condensate drain line and trap (90%+ AFUE)
- PVC flue venting (90%+ AFUE) or B-vent (80% AFUE)
- Gas flex connector
- Electrical disconnect and wiring (if required)
- Filter rack and media filter (if required)
- City of Chicago mechanical permit
Labor Breakdown
- Manual J heat load calculation
- Existing furnace removal and disposal
- New furnace placement and leveling
- Gas line connection and pressure test
- Flue venting installation and code compliance verification
- Electrical connection and startup
- Condensate drain installation and test (90%+ AFUE)
- Combustion analysis and performance verification
- City permit and inspection coordination
- Lennox warranty registration
Warranty Coverage — Lennox SL280V
Lennox Manufacturer Warranty
- 10-Year Limited Parts Warranty
- Compressor Coverage Included
- Registration Required at Installation
- D's Air Registers at Install — No Action Needed
D's Air Workmanship Warranty
- 2-Year D's Air Workmanship Warranty
- Startup Verification Included
- Installation Quality Assurance
- Warranty Registered at Installation
Frequently Asked Questions — Lennox SL280V
Why would I choose the SL280V over the SLP99V?
The SL280V is the right choice when your home's venting configuration does not allow for PVC condensate venting required by 90%+ AFUE condensing furnaces. Some Chicago homes with existing B-vent systems, limited drainage options, or specific mechanical room configurations are better suited to an 80% AFUE furnace. D's Air evaluates your home's venting during the free in-home estimate.
What makes the SL280V different from other 80% AFUE furnaces?
The SL280V combines a two-stage gas valve with a variable-speed ECM blower — delivering Signature Collection comfort at 80% AFUE. Most 80% AFUE furnaces use single-stage gas valves and single-speed blowers. The SL280V's two-stage, variable-speed operation delivers quieter, more consistent heating with better humidity control.
How much does a Lennox SL280V installation cost in Chicago?
Equipment sale starts at $3,839 for the 70K BTU Low NOx upflow model. Installed price starts at $7,039. See the full pricing table above for all BTU sizes and configurations. Call (773) 940-0965 or request a free estimate online.
Does D's Air pull permits for Lennox furnace installations in Chicago?
Yes. The City of Chicago requires a mechanical permit for every furnace replacement. D's Air & Heating, Inc. pulls all required permits and coordinates city inspections on every installation. IL License #2183457.
Does D's Air register the Lennox warranty?
Yes. D's Air & Heating, Inc. registers your Lennox 10-Year Limited Parts Warranty at installation. You do not need to register separately.
Is financing available for Lennox furnace installations?
Yes. D's Air & Heating, Inc. offers multiple financing programs for qualified customers, including low monthly payment options with fast approval. Ask about current promotions during your free estimate.
How long does a Lennox furnace installation take?
A standard furnace replacement is typically completed in one day. Jobs involving gas line extensions, venting modifications, or electrical upgrades may require additional time.
What is D's Air's service area for Lennox furnace installations?
D's Air & Heating, Inc. serves Chicago and surrounding communities including Niles, Skokie, Morton Grove, Park Ridge, Rosemont, Harwood Heights, Norridge, Des Plaines, Lincolnwood, Elmwood Park, Evanston, and Oak Park.
Service Areas — Lennox SL280V Installation
Why Choose Lennox?
D's Air & Heating is a Authorized Local Chicago Lennox dealer since 2010.
Lennox products are recognized for advanced technology, quiet operation, exceptional efficiency ratings, and dependable performance in Chicago's demanding climate. Lennox systems are engineered for long-term reliability, comfort, and energy savings that Chicago homeowners depend on year after year.
Why Choose D's Air & Heating?
D's Air & Heating is a Authorized Local Chicago Lennox dealer since 2010.
We provide professional installation, replacement, repair, and maintenance services for the complete line of Lennox heating and cooling products throughout Chicago and surrounding communities. As an Authorized Local Chicago Lennox dealer since 2010, we install genuine Lennox equipment according to manufacturer specifications and industry best practices.
When you choose D's Air & Heating for your Lennox installation or replacement project, you receive expert guidance, professional workmanship, and access to one of America's most trusted HVAC brands. Our team helps homeowners maximize comfort, energy efficiency, and long-term system reliability through properly designed Lennox comfort solutions.
Gas Furnace Features
The Lennox SL280V is engineered for reliable, efficient performance in Chicago's climate. Every unit is manufactured to Lennox's exacting standards and backed by the Lennox manufacturer warranty when registered at installation.
Professional Lennox Installation
Every installation includes equipment evaluation, proper system sizing, removal of existing equipment, professional installation, safety testing, airflow verification, and system commissioning to manufacturer standards. City of Chicago mechanical permits included on every installation.
Financing & Warranties
D's Air & Heating offers flexible financing options for qualified customers on all Lennox equipment installations. Ask about current Lennox rebates, manufacturer promotions, and seasonal offers available through our dealership.
- Lennox 10-Year Limited Parts Warranty — registered at installation
- Lennox 20-Year Heat Exchanger Warranty (select furnace models)
- 2-Year D's Air & Heating Workmanship Warranty
- Financing available for qualified customers — ask about current offers
- Current Lennox rebates and manufacturer promotions available
- No-contract service — no annual maintenance agreement required
Request Your Free Estimate
D's Air & Heating is a Authorized Local Chicago Lennox dealer since 2010.
Contact D's Air & Heating, an Authorized Local Chicago Lennox dealer since 2010, at (773) 940-0965 to schedule your free estimate for Lennox SL280V installation, replacement, maintenance, or repair.
Get a Free Installation Estimate
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