Lennox Gas Furnace Reviews and Prices 2025

Before you dive into the specific brand review, we highly recommend you to read our elaborate Gas Furnace Buying Guide in advance. There are several crucial steps you need to take before you even start to think about the brand.

This Lennox gas furnace buyers guide is your one-stop source for researching one of today’s leading furnace lines. You’ll find the comprehensive information needed to decide if Lennox is the brand you want and which model will best serve your home. The US Climate chart below will ensure you select a Lennox furnace that produces cost-effective heating where you live.

Lennox makes ten gas furnaces in three series:

• Basic – Lennox Merit Series furnaces (ML): Single-stage furnaces with 80% and 90%-plus efficiencies
• Better – Lennox Elite Series furnaces (EL): Single-stage and two-stage furnaces with 80% models and 90%-plus models
• Best – Dave Lennox Signature Collection furnaces (SL): Two-stage and modulating furnaces with 80% AFUE models and furnaces up to 99% AFUE, currently the most efficient gas furnace made

Lennox gas furnace prices for all models are listed in below list, so you’ll have a good idea of what to expect before you call dealers to get estimates. Now let’s get started! You can check a quick content navigation below:

How Lennox Furnaces Compare with Other Brands

When comparing Lennox furnaces with other major HVAC manufacturers, several key factors come into play. Let’s break down how Lennox stacks up against its main competitors:

Energy Efficiency

Lennox stands out in the energy efficiency department, particularly with their Dave Lennox Signature Collection. Their SLP99V model achieves up to 99% AFUE rating, making it one of the most efficient furnaces in the market. In comparison, Carrier’s top model reaches 98.5% AFUE, while Trane’s best offering tops out at 97.3% AFUE.

Price Point and Value

Lennox furnaces typically fall into the premium price category. Their units generally cost 10-15% more than comparable models from brands like Rheem or Goodman. While the initial investment is higher, the superior energy efficiency can lead to significant long-term savings, especially in colder climates where the furnace runs frequently.

Product Range and Features

Lennox offers three distinct product lines: – Dave Lennox Signature Collection (Premium) – Elite Series (Mid-range) – Merit Series (Entry-level)

This tiered approach is similar to Carrier’s Infinity, Performance, and Comfort series, though Lennox tends to offer more advanced features like variable-speed technology and precise humidity control across their range.

Reliability and Durability

In terms of reliability, Lennox furnaces generally receive positive reviews, though they rank slightly behind Trane and Carrier in this aspect. Consumer Reports and various HVAC forums indicate that Lennox units typically last 15-20 years with proper maintenance, which is comparable to other premium brands.

Parts Availability and Service

One notable consideration is that Lennox uses proprietary parts, which can be a disadvantage compared to brands like Goodman or Rheem that use more standardized components. This can lead to: – Higher repair costs – Longer wait times for replacement parts – Need for Lennox-certified technicians

Warranty Coverage

Lennox offers competitive warranty coverage: – Limited lifetime warranty on heat exchangers – 10-year limited warranty on covered components – 5-year limited warranty on labor (with registration)

This warranty package is on par with other premium brands like Carrier and Trane, though some manufacturers like Goodman offer longer labor warranties.

Installation Network

Lennox maintains a selective dealer network, similar to Carrier and Trane. While this ensures quality installation, it can limit options and potentially increase installation costs compared to brands with wider dealer networks like Rheem or York.

Overall, Lennox furnaces stand out for their exceptional energy efficiency and advanced features, though these benefits come at a premium price point. The brand is particularly suitable for homeowners who prioritize energy savings and are willing to invest in premium HVAC equipment.

Model Analysis and Recommendation

When you’re looking for the most cost-effective heating, the strategy is to find the balance between furnace cost and energy costs. Let’s use the zone map to identify efficiency levels for each that strike that balance:

Note for the short-term house:

Lennox is one of the premium brands with higher initial cost. If you have the plan of moving house in less than 5 years, we recommend installing some quality but low-end level brands like Payne, Ruud or Armstrong. Looking for more budget brands? You can check our gas furnace brands guide.

Contractor Reviews For Lennox

Specific contractor reviews on gas furnaces are very rare due to the wide array of gas furnace models in the market. It is difficult to review all models on reliability and efficiency as most brands will work for years without a problem. BUT we just interviewed Kobie who is the after-sale manager who has 20+ years experience for Lennox, Goodman and Heil furnaces.

I have worked in the commercial and residential HVAC field for many years, and I know that a significant percentage of furnaces failures are as a result of poor installation and very cheap units. The Lennox Merit series has proven to be a piece built on high quality and reasonable price. I have installed this model for my cousin for eight years, and had any major failures. The Lennox gas furnace might not beat the Goodman, the Carrier or the Heil in the price but can do an excellent job of heating and cooling your home. Some consumers have reported the Lennox gas furnaces breaking down almost every year during the winter season. This might be true, but most breakdowns are associated with the poor installation of the units.

-Kobie from Uuder Comfort Heating & Cooling Inc

Note For Lennox Furnace Parts

It is worth noting that all Lennox’s parts are proprietary. The parts are three times as expensive as other parts which you can easily find in the market. So if you choose Lennox Furnace, we strongly recommend you purchase the extended warranty with the labor fee included.

Lennox Gas Furnace Prices By Model

We need to set an equal baseline before we can list the prices for each Lennox model. In this list, each furnace includes the same parameters: 70,000-75,000 BTU with 1000 CFM blower which is the mid-sized home of around 2,000 square feet, 10-year warranty excludes the labor fee.

The Unit Only price is the online wholesale price without shipping fee. The Unit Installation Cost include gas furnace unit, all the material for the house and labor fee.

Lennox Furnace Prices By Size

The cost list below is from an average baseline: Lennox 296E, No New Ductwork, 10-year warranty and average labor fee.

You can use our furnace sizing calculator to get the Trane furnace size you need. Want to replace your air conditioner together? Check our Lennox Air Conditioner Prices and Installation Cost for more info.

Submitted Prices and Reviews by Visitors

We will update this table every 3-6 months and you may not see your submitted review immediately. Only fake and unreasonable submitted information will be filtered. (Last Update: 17th Jan., 2023)

• Firstly, keep in mind that installation quality is always the most important thing for a gas furnace project. So never sacrifice contractor quality for lower price.
• Secondly, remember to look up the latest tax credit and rebates.
• Thirdly, ask for at least 3 bids before you make the decision. You can click here to get 3 free estimates from your local contractors, and this estimate already takes rebates and tax credit into consideration and filter unqualified contractors automatically.

Lastly, once you chose the right contractor, remember to use the tactics from this guide: homeowners tactics when negotiating with HVAC dealer to get the final best price.

Feel free to ask any question by leaving a comment. We will answer any question with actionable tips.