Lennox Furnace Models and Prices Guide

Lennox furnace models and prices vary by efficiency, capacity, and features, making it important to compare series such as Merit, Elite, and Dave Lennox Signature Collection. This guide explains model differences, estimated price ranges, installation factors, and tips to choose the right Lennox furnace for a U.S. home.

Series	Typical Models	AFUE Range	Estimated System Price Range*
Merit	ML196/ML180/ML197	80%–95%	$2,500–$5,000
Elite	EL176/EL296/EL296V	80%–96%	$3,500–$7,000
Dave Lennox Signature Collection	SLP99/SLP98/ML196V	95%–99.8%	$5,000–$12,000

Overview Of Lennox Furnace Lines

Lennox sells furnaces across three primary lines: Merit, Elite, and the Dave Lennox Signature Collection. Each line targets different budgets and efficiency expectations. Merit focuses on reliability and value, Elite offers balanced efficiency and features, and Dave Lennox Signature Collection emphasizes top-tier efficiency and advanced technology.

Key Features That Affect Lennox Furnace Prices

Several attributes influence Lennox furnace models and prices. AFUE (Annual Fuel Utilization Efficiency) determines energy savings and typically raises initial cost for higher ratings. Variable-speed blowers, multi-stage heating, and modulating gas valves add performance and complexity, increasing price. Compatibility with smart thermostats, zoning systems, and the quality of components also impact cost.

Efficiency (AFUE)

AFUE ratings for Lennox models range from about 80% to 99.8%. Higher AFUE furnaces cost more upfront but reduce annual fuel bills. Homes in colder climates often justify higher AFUE for long-term savings.

Staging And Blower Technology

Single-stage furnaces operate at full capacity when running, while two-stage and variable-speed models provide more precise temperature control. Variable-speed blowers improve comfort and efficiency but increase price and installation complexity.

Construction And Warranty

Materials and build quality vary across lines. Premium models often include better heat exchangers and quieter operation. Lennox warranties differ by model and may require dealer registration for full coverage, influencing overall lifetime value.

Popular Lennox Furnace Models Explained

This section outlines notable Lennox furnace models, their distinguishing features, and where they fit in the market. Each model family addresses different priorities: affordability, balanced features, or premium efficiency.

Merit Series

Merit models are designed for value-minded buyers seeking reliable heating without advanced features. Typical AFUE ranges from 80% to mid-90s depending on model. These furnaces use single-stage or two-stage gas valves and fixed-speed blowers in many configurations.

Elite Series

The Elite series balances efficiency and features. Models often include two-stage or variable-speed blowers and AFUE ratings up to the mid-90s. These units offer quieter operation and better humidity control than Merit models.

Dave Lennox Signature Collection

The Dave Lennox Signature Collection represents the top-of-line Lennox furnace models, including ultra-high-efficiency products with AFUE ratings approaching 99.8%. These furnaces often feature modulating gas valves, variable-speed blowers, and premium components for best-in-class efficiency and comfort.

Example Models

Common examples include the SLP99 (near 99.8% AFUE, modulating) for maximum efficiency, the EL296V (variable-speed, high AFUE) for balanced performance, and ML196 for a dependable Merit option. Each model number encodes features such as efficiency class and blower type.

Estimated Lennox Furnace Prices And Installation Costs

Lennox furnace models and prices vary widely based on model, home size, installation complexity, and local labor rates. Typical price ranges for an installed system in the U.S. are shown below and include basic installation and permit fees but exclude major ductwork changes.

Model Tier	Typical Unit Cost	Estimated Installed Cost
Merit	$800–$2,500	$2,500–$5,000
Elite	$1,500–$4,000	$3,500–$7,000
Signature Collection	$3,000–$6,500	$5,000–$12,000

Actual installation costs can increase if additional electrical work, new thermostats, condensate pumps, venting changes, or significant duct repairs are necessary. Regional labor rates in high-cost metropolitan areas can add hundreds to installation fees.

How To Choose The Right Lennox Furnace

Selecting a Lennox furnace depends on budget, climate, and performance preferences. Factors include the desired AFUE, noise tolerance, indoor air quality needs, and whether the home will benefit from zoning or smart controls. A professional load calculation helps match furnace capacity to the home.

Perform A Manual J Load Calculation

A Manual J load calculation estimates heating and cooling needs based on home size, insulation, windows, and orientation. Choosing a properly sized Lennox furnace prevents short cycling and preserves efficiency and comfort.

Consider Long-Term Operating Costs

Higher AFUE units cost more upfront but often deliver lower fuel bills, particularly in colder regions with long heating seasons. Calculate payback periods using local energy prices to determine if a premium Lennox model makes financial sense.

Evaluate Comfort Features

Variable-speed blowers and multi-stage heating improve comfort and humidity control. If quiet operation and consistent temperatures are priorities, selecting an Elite or Signature Collection model may be justified.

Installation Considerations And Additional Costs

Installation quality affects efficiency and longevity. Lennox furnaces require proper venting, electrical connections, and sometimes gas line adjustments. Additional costs may include permits, thermostat upgrades, duct sealing, and disposal of an old unit.

Ductwork And Zoning

Duct testing and sealing can improve system performance. Adding zoning increases installation complexity and cost but can enhance comfort and energy savings by directing conditioned air where it is needed.

Rebates, Tax Credits, And Utility Incentives

Federal tax credits for high-efficiency systems are occasionally available, and many utilities offer rebates for high AFUE furnaces or systems paired with heat pumps. These incentives can substantially offset the cost of premium Lennox furnace models.

Warranty, Maintenance, And Longevity

Lennox offers limited warranties that vary by model; higher-end products typically have longer coverage for heat exchangers and parts. Extended warranties or labor guarantees may be available through dealers. Regular maintenance extends the life of any Lennox furnace.

Recommended Maintenance

Annual professional tune-ups, filter changes every 1–3 months depending on filter type, and periodic thermostat checks keep performance optimal. Proper maintenance maintains AFUE and can prevent costly repairs.

Expected Lifespan

A well-maintained Lennox furnace typically lasts 15–25 years, with high-end units often reaching the upper end of that range. Frequent repairs or neglected maintenance shorten lifespan and reduce efficiency.

Common Questions About Lennox Furnace Models And Prices

Are Lennox Furnaces Worth The Price?

Lennox furnaces are known for quality construction and high-efficiency options. For buyers prioritizing efficiency, quiet operation, and advanced controls, Lennox often provides good long-term value. Budget buyers may prefer Merit models or competing brands with lower initial costs.

How Much Can One Save With A High-AFUE Lennox Furnace?

Savings depend on heating load, fuel price, and baseline equipment. Upgrading from 80% AFUE to 95% AFUE can reduce gas use by roughly 15–20% under typical conditions. The break-even period varies by region and energy costs.

Does Lennox Offer Variable-Speed Furnaces?

Yes, Lennox offers variable-speed blowers and modulating gas valves in select Elite and Signature Collection models. These technologies improve comfort, efficiency, and humidity control but increase initial cost.

Tips For Getting Accurate Lennox Furnace Prices

Request written estimates from several Lennox dealers including itemized costs for the unit, labor, permits, and any additional work. Verify whether the quote includes thermostat installation, venting updates, and ductwork repairs. Ask about available rebates and financing options.

Questions To Ask Installers

• Will the installer perform a Manual J load calculation?
• Is the quoted model properly sized for the home?
• What warranty and maintenance services are included?
• Are any rebates or financing promotions available?
• Does the price include permits and disposal of the old furnace?

Where To Buy And Replace Lennox Furnaces

Lennox furnaces are sold through authorized dealers and HVAC contractors. Working with a certified Lennox dealer ensures access to factory support, proper installation practices, and warranty validation. Compare quotes and check contractor reviews and licensing before hiring.

Final Considerations When Comparing Models And Prices

When evaluating Lennox furnace models and prices, weigh upfront cost against expected energy savings, comfort benefits, and warranty coverage. For many U.S. homeowners, selecting the right Lennox model involves balancing efficiency goals with budget and local climate realities. Professional consultation and accurate load calculations provide the best path to a well-matched system.