Lennox Furnace Review

Our updated comprehensive Lennox furnace review buying guide is complete with the latest information for 2023, including a comparison of top Lennox furnace models, energy efficiency ratings, top features, warranty info, and more. Get a free quote quickly & easily!

Article Contents

• Review of Lennox’s Strengths and Limitations
  • Strong Points
  • Room for Improvement
  • Bottom Line
• Price Range
• Model Tiers
  • Basic
  • Better
  • Best
• Model Breakdown and Comparison
• Exclusive Features
  • Power Saver™
  • iComfort Smart Thermostat
  • Duralok Plus
  • Ultimate Comfort System
• Warranty
• Lennox’s Add-ons, Extras, and Thermostats
• About the Company
• Lennox FAQs

In the market for a new Lennox furnace? You’ve come to the right place! If you’re interested in purchasing a new Lennox furnace, then this brand review will help you make smarter decisions when you’re weighing your options.

The review will cover average Lennox furnace prices in Canada and showcase and critically examine some of the brand’s key features. It will also provide warranty information, compare all the Lennox furnaces, and even talk about what real HVAC contractors and real Canadian homeowners think of Lennox products.

Our guide will help you on your journey to a new high-efficiency heating system and help you make an informed decision about a furnace upgrade that matches your budget, your needs, and your comfort specifications.

Also Read: The Best Furnaces for Canadians

Review of Lennox’s Strengths and Limitations

Strong Points

Lennox has been making top-quality gas furnaces for over a century. Their premium models, primarily found in the Dave Lennox Signature Series, are industry leaders when it comes to efficiency, with some models able to operate at 99 percent AFUE.

Their furnaces are also built to a high standard with exceptional materials, ensuring durability and reliability, even during periods of heavy usage. All their furnace models are made with some proprietary components that are tried and tested.

What's more, their high-efficiency furnaces come standard with secondary heat exchangers, dual fuel compatibility, fuel-saving ignition systems, and ENERGY STAR certification.

Lennox focuses on making furnaces that are extremely quiet, efficient, and reliable. They have a good selection of high-efficiency furnaces with a decent range of design elements, including single-stage, two-stage, and modulating furnaces paired with constant torque or variable-speed blower motors.

Regardless of where you live or the heating demands of your home, you'll probably find something in Lennox’s product line to meet your needs.

Room For Improvement

Lennox is a premium brand that charges more for their furnaces than most other brands. It is possible to get an entry-level Lennox furnace at a reasonable price, but if you want a mid-range or top-tier variable-speed furnace with two-stage or modulating operation, then expect to pay around $7,000.

But for the price you pay, you won’t get a great warranty. Lennox’s entry-level units only come with a 20-year heat exchanger warranty, none of their furnaces have a parts warranty longer than 10 years, and they don’t offer the unit replacement warranties that many brands have recently adopted.

Furthermore, Lennox doesn’t have a lot of novel features or technologies. This is especially true when compared to premium brands like Carrier, who have Greenspeed Intelligence, the Ideal Humidity System, Smart Evap, and more. Even economy brands like Goodman have communicating technology like ComfortBridge available with their natural gas furnaces.

The Bottom Line

Lennox sets themselves apart from the competition by delivering high-end heating solutions. They make reliable and well-designed gas furnaces at different price points, and they have a decent selection of entry-level, mid-range, and premium-tier models.

Lennox markets themselves as the top-tier, brand name company in heating and cooling, and they have an excellent reputation. Their main focus is quality furnaces that are efficient and quiet.

In fact, they make the most efficient furnace available, so if reducing your gas bill is a priority and you don’t mind paying a higher price for the name, then Lennox might be a good brand to consider.

Alternatively, if you're interested in things like economy, better warranties, and cool features, then you might want to look at some competitors instead.

While it’s certainly debatable whether paying a premium price for a top-tier furnace is worth it, homeowners generally won’t be disappointed as long as they can afford the relatively high price point.

➤ Get the BEST Prices on Lennox furnaces: Fill out a free quote request here

Lennox Average Price Range

$3,500 – $7,500 (including installation)

It’s impossible to give an exact quote because so many factors impact the cost of a new heating system. For example, manufacturers or local distributors often promote deals on certain units throughout the year, and government or utility company rebates may be available as well.

With any furnace, the final cost of the unit will vary based on installation costs, where you live, the model you choose, the size of your house, and the tier of furnace you want.

Lennox has entry-level Merit series furnaces, mid-range Elite series furnaces, and top-tier Dave Lennox Signature Collection furnaces. Furnace price ranges increase as you go up in tier, and the higher the tier, the more perks the furnace will have, such as better features and longer warranties.

Here's an estimate of Lennox furnace tier price ranges:

• Entry-level models: $3,500 – $4,835
• Mid-range models: $4,835 – $6,170
• Top-tier models: $6,170 – $7,500+

These prices include installation costs because you have to budget for this. A DIY installation could void your warranty, damage your new furnace, or even put your family at risk because of a gas leak.

See our full Lennox furnace prices breakdown here >>

Lennox Furnace Model Series Overview

Basic – Merit Series

The entry-level Merit series includes Lennox’s most affordable offerings. The models in this tier include single-stage and two-stage furnaces with constant torque blowers or variable-speed blowers, and they have AFUEs of 93 or 96 percent. Note that high-efficiency furnaces in Canada must have an AFUE of at least 95%.

All the high-efficiency Merit furnaces have ENERGY STAR® certification. At least one of them is comparable to the pricier mid-range Elite models in terms of efficiency and sophistication. One trade-off, however, is that they only have a 20-year warranty for the heat exchanger.

These furnace models also have tightly sealed blower compartments to reduce air leakage, secondary heat exchangers to reduce heat loss, heavy-duty components and materials, and Lennox’s proprietary Duralok Plus primary heat exchangers. Further, they're all dual fuel capable, meaning they can be paired with an electric heat pump to reduce your gas bill.

Some models in the Merit series are compatible with Lennox’s iComfort M30 smart thermostat, which can give you access to some additional features and capabilities that aren't available with the furnace alone.

Better – Elite Series

The mid-range Elite Series contains single- and two-stage Lennox gas furnaces. Most have Lennox’s proprietary Power Saver constant torque motor, but one of them is a variable-speed furnace that offers precise air circulation.

Elite series furnaces have efficiency ratings of 95 and 96 percent, and all of them are ENERGY STAR certified. There's also an ultra-low nitrogen oxide emissions model in this tier.

Elite series furnaces do come with a higher price tag than their Merit series counterparts, in part because they come with a longer lifetime heat exchanger warranty.

However, they have all the same design features, including Duralok Plus primary heat exchangers, secondary heat exchangers, insulated blower compartments, dual fuel compatibility, and quiet operation.

These models are compatible with a more sophisticated smart thermostat, the iComfort E30, which has even more capabilities than the M30.

Conversely, Elite series models come at a lower price than premium Dave Lennox Signature Collection furnaces, and they still offer high efficiency operation and lower utility costs.

Best – Dave Lennox Signature Collection

The top-tier Dave Lennox Signature Collection includes some of the finest furnaces ever produced by Lennox.

There's a two-stage gas furnace and a modulating furnace in Lennox’s premium tier. Each one is a variable-speed furnace that offers precise air and heat circulation, and they have AFUE ratings of 97.5 to 99 percent. One even qualifies as an ultra-low NOx furnace.

The top model—the one with the 99 percent efficiency rating—is the most efficient furnace on the market and also one of the quietest heating systems available.

Lennox’s premium furnaces have all the same attractive design elements as other Lennox furnaces, including the Duralok Plus heat exchanger, condensing technology, extremely quiet performance, and dual fuel capability.

Dave Lennox Signature Collection furnaces are some of the most expensive on the market, but they don’t come with a better warranty than the Elite series models. Further, they don’t have any additional technological features, aside from being compatible with the iComfort S30, Lennox’s most advanced smart thermostat.

Model Breakdown and Comparison

Dave Lennox Signature Collection SLP99V

The SLP99V has the best energy efficiency rating of any furnace on the market, and Lennox also says it’s the quietest furnace out there. It was awarded the ENERGY STAR Most Efficient 2021 certification. It has a 99 percent AFUE, boasting nearly zero energy waste and minimal energy costs. This modulating, variable-capacity gas furnace has a secondary heat exchanger and other great design features that make Lennox furnaces quiet and reliable. Plus, you can unlock even more great features if you pair it with the iComfort S30 smart thermostat. No matter where you live or what size your home, the SLP99V will have no trouble providing consistent heat and air distribution, keeping the house consistently warm, balancing moisture levels, and lowering utility bills. Let’s have a look at the design specifications of the SLP99V:

AFUE: 99 percent
Furnace type: Modulating
Blower type: Variable-speed
ENERGY STAR® rated? Yes
Tier – Best
Ideal for: This is the top-of-the-line Lennox model for homeowners with a very healthy budget who want a brand name furnace that will save the most amount possible on energy costs. The SLP99V doesn’t have a lot of features or technologies, but it’s quiet, extraordinarily efficient, reliable, and built to last.

Dave Lennox Signature Collection SL297NV

The SL297NV is another top-tier Lennox furnace. It’s a two-stage, variable-capacity gas furnace that promises excellent efficiency, quiet air and heat distribution, and consistent temperatures throughout the house, all winter long. The SL297NV was awarded the ENERGY STAR Most Efficient 2021 and has ultra-low NOx emissions. In fact, it reduces nitrogen oxide emissions by 65 percent compared to low NOx furnaces, making it the lowest emissions furnace on the market. It’s also equipped with a couple of Lennox’s standard design elements, including an insulated blower compartment, SureLight silicone nitride ignitor, and iComfort S30 compatibility. Here's a closer look at the SL297NV’s specifications:

AFUE: 97.5 percent
Burner type: Two-stage
Blower type: Variable-speed
ENERGY STAR rated? Yes
Tier – Best
Ideal for: Canadians who are concerned about the environment, energy-efficiency, and home comfort, but who also have a large budget for a furnace upgrade. The SL297NV is a highly efficient furnace that’s also quiet and reliable, and because it boasts such low NOx emissions, it’s also a great choice for the planet.

Lennox Elite EL296V

The EL296V is a two-stage gas furnace with a variable-speed blower motor for calculated air and heat circulation, secondary heat exchanger and condensing technology, and dual fuel compatibility when paired with a heat pump. It will help to eliminate temperature swings in your home and reduce humidity levels. The EL296V is a very efficient and capable furnace that shouldn’t have any trouble keeping every corner of your home warm. Furthermore, while this model isn't quite as efficient as Lennox’s premium models, it still has great design features, proprietary Lennox components, and a high-efficiency rating that will save you plenty on energy costs. This is what the design features of the EL296V include:

AFUE: 96 percent
Burner type: Two-stage
Blower type: Variable-speed
ENERGY STAR rated? Yes
Tier – Better
Ideal for: People with moderate to high heating demands and a large budget who want an efficient and quiet furnace that comes with the backing of a trusted brand name. This model will still require a significant investment, but it’s a little more affordable than Lennox’s premium-tier models.

Lennox Elite EL296E

The EL296E is an advanced mid-range Lennox Elite series furnace. It’s very similar to the EL296V: they're both two-stage furnaces with an efficiency rating of 96 percent and ENERGY STAR certification. However, this model has a slightly more basic Power Saver constant torque motor, so it will be more affordable and a little more basic. It has a couple of airflow speeds, but it can't make incremental adjustments to the airflow the way a variable-capacity gas furnace can. Nonetheless, the EL296E still has a secondary heat exchanger, dual fuel operation when paired with a heat pump, a proprietary primary heat exchanger, and a great efficiency rating. It promises quieter performance, more cost-effective operation, and better heat distribution than single-stage furnaces. Here are the specifications you'll want to know about:

AFUE: 96 percent
Burner type: Two-stage
Blower type: Constant torque
ENERGY STAR rated? Yes
Tier – Better
Ideal for: Anybody looking for a furnace upgrade who has a healthy budget, wants a brand name furnace, and doesn’t mind paying extra for a heating system that doesn’t have many bells and whistles. The EL296E will provide reliable and consistent heat for large homes, and it will help to reduce energy costs compared to your older furnace.

Lennox Elite EL196E

Despite being a relatively pricey mid-range model, this Lennox Elite series furnace is arguably a little basic. The EL196E is a high-efficiency furnace with an efficiency rating of 96 percent, ENERGY STAR certification, and a secondary heat exchanger, but it only has single-stage operation paired with a constant torque motor. It’s equipped with Lennox’s proprietary heat exchanger, ignition system, and blower motor. It also has a secondary heat exchanger and dual fuel capability when paired with a heat pump. When you pair the EL196E with Lennox’s iComfort E30 smart thermostat, you can get additional features like voice control if you integrate it with an additional technology like Amazon Alexa or Apple HomeKit. This is what you need to know about the EL196E:

AFUE: 96 percent
Burner type: Single-stage
Blower type: Constant torque
ENERGY STAR rated? Yes
Tier – Better
Ideal for: Single-stage furnaces in Canada work best in smaller homes and in warmer parts of the country. The EL196E will still save plenty on energy bills, but the single-stage operation and constant torque motor make it better equipped to warm homes with lower winter heating demands. And you'll still need a rather large budget to afford this furnace even though it’s pretty basic.

Lennox Elite EL195NE

The Elite EL195NE is one of the Lennox Elite series furnaces. It’s a high-efficiency furnace with ultra-low NOx emissions. It has a special premix burner that reduces emissions, and it boasts 65 percent lower emissions than standard low-NOx furnaces. This model also has some appealing features, including the Power Saver constant torque blower motor, SureLight silicon nitride ignitor, dual fuel compatibility, and compatibility with the iComfort E30 smart thermostat. However, the EL195NE is still a single-stage furnace with a 95 percent efficiency rating, so it will be better for smaller Canadian homes or houses in milder parts of the country:

AFUE: 95 percent
Burner type: Single-stage
Blower type: Constant torque
ENERGY STAR rated? Yes
Tier – Better
Ideal for: Ultra-low NOx furnaces are typically meant for environmentally conscious homeowners and people in places that have strict air quality standards, like California. This model could work in Canada if your home has lower heating demands, such as a smaller home or a house where the winters are mild, such as Vancouver Island.

Lennox Merit ML296V

The ML296V may be one of Lennox’s entry-level furnaces, but it promises excellent efficiency, performance, and value thanks to the two-stage operation, variable-speed blower motor, secondary heat exchanger, condensing technology, and proprietary Lennox components. This two-stage gas furnace with variable capacity delivers excellent humidity control, consistent temperatures, energy efficiency, and energy savings. Plus, the ML296V is compatible with the iComfort M30, which can give you access to a few more cool features. However, as a Merit series furnace, it does have a shorter warranty than other Lennox products, but it will be more affordable than Lennox Elite series furnaces or models from the Dave Lennox Signature Collection. Let’s look at what makes this model so appealing:

AFUE: 96 percent
Burner type: Two-stage
Blower type: Variable-speed
ENERGY STAR rated? Yes
Tier – Basic
Ideal for: Canadians looking for a furnace that offers a little better value for what they pay. The ML296V still carries the prestigious Lennox name, and it’s a powerful natural gas furnace with great design features and efficiency. It’s also more affordable than other Lennox furnaces because it’s an entry-level model.

Lennox Merit ML196E

The ML196E is an efficient, ENERGY STAR furnace with a good AFUE, decent warranty, and good design features. It’s also a little more affordable than most other Lennox furnaces because it’s an entry-level, single-stage model. It can be paired with the iComfort M30 smart thermostat for some additional features, but it’s still a fairly standard high-efficiency furnace. It comes with Lennox’s proprietary heat exchanger, ignition system, and blower motor. It also has a secondary heat exchanger and condensing technology, and you can pair it with a heat pump to take advantage of its dual fuel operation. Let’s look at the important stats for the ML196E:

AFUE: 96 percent
Burner type: Single-stage
Blower type: Constant torque
ENERGY STAR rated? Yes
Tier – Basic
Ideal for: Homeowners who like the appeal of the Lennox name without having to pay an arm and a leg for it. This single-stage model will also be better suited for homes with lower heating demands, such as townhouses, smaller homes, apartments, or places in milder parts of the country.

Lennox Merit ML193E

The ML193E is Lennox’s most affordable furnace, but with an AFUE of 93 percent, it doesn’t meet the Canadian government’s new energy efficiency minimum for furnaces. In other words, it doesn’t qualify as high-efficiency, and you may not be able to buy this Lennox model in Canada. Single-stage furnaces like the ML193E are best suited for smaller homes or milder climates. Nonetheless, the ML193E does have some appealing design elements, including a secondary heat exchanger, insulated blower compartment, dual fuel compatibility when paired with a heat pump, and a constant torque motor. This model won’t save you quite as much on energy bills as a more efficient alternative, but it will still cut your energy costs if you're upgrading from a low- to mid-efficiency unit. Here are the details about the ML193E you'll want to know:

AFUE: 93 percent
Burner type: Single-stage
Blower type: Constant torque
ENERGY STAR rated? No
Tier – Basic
Ideal for: This model won’t be suitable for most Canadian homes—it’s a better design for homes in milder climates, like parts of the United States. It will be good for homeowners who don’t have a huge budget for a furnace upgrade but still want a prestigious name and a reliable natural gas furnace to heat a smaller home.

Exclusive Features from Lennox

Feature 1 – Power Saver™

How Lennox describes it: A constant torque motor that uses less energy to heat and cool your home, thereby reducing your utility bills.

What it is in plain language: The blower motor in a furnace refers to the motor that powers the blower that actually blows air into the ductwork to circulate heat around your house. A constant torque blower motor is a type of motor that has more than one air speed, typically five, so it can adjust the airflow depending on the conditions and your heat settings.

Is it more than just hype? The name Power Saver isn't quite deceptive, but it is an example of Lennox just giving a fancy name to a proprietary component. At the same time, constant torque blowers are superior to single-speed ones, and they can in fact reduce energy bills while improving humidity management, lowering operational noise, and providing more even heat throughout your house.

Lennox seems to be doing away with single-speed blowers and moving toward ones with multiple and variable speeds, and this is good for your home comfort and your energy bills. But it should be noted that a lot of HVAC brands are making this move, so Lennox isn't exclusive in this.

Feature 2 – iComfort Smart Thermostat

How Lennox describes it: A smart thermostat that will help you maximize the performance of your heating and cooling systems. These products are flexible, adaptable, and can save you money on energy bills.

What it is in plain language: iComfort is actually a collection of proprietary smart thermostats from Lennox. The iComfort S30 is compatible with Dave Lennox Signature series heating systems, the iComfort E30 is compatible with Elite furnaces and some non-Lennox furnaces, and the iComfort M30 is for Merit and some other non-Lennox furnaces.

As a smart thermostat, the iComfort products are Wi-Fi enabled thermostats that can learn your behaviours, create heating schedules based on your routines, and give you remote access to your heat settings and other data.

Is it more than just hype? Lennox isn't the only HVAC company that makes their own smart thermostats, and here's a list of some others: Carrier Armstrong, Heil, KeepRite, Comfortmaker, Tempstar, Rheem, Ruud, Trane, York, Coleman, Luxaire, and Daikin.

There's good reason that so many HVAC manufacturers make their own smart thermostats, and one is the fact that these devices can in fact save a great deal on energy bills.

Furthermore, the iComfort smart thermostats do have some really cool features that not all HVAC controls have. The specific features available depend on whether it’s the S30, E30, or M30, but here are a few of the capabilities you might like:

• When paired with technologies like Alexa, IFTTT, and HomeKit, you can get voice control access to your thermostat
• The thermostat can monitor outdoor air quality and make automatic adjustments to preserve your indoor air quality
• The device actively monitors your furnace and can send automatic updates to your HVAC technician
• It has a geofencing feature that can automatically put your furnace into an energy-saving away mode or your programmed comfort mode depending on whether you're home or away.

Feature 3 – Duralok Plus

How Lennox describes it: A heat exchanger that’s used in Lennox’s high-efficiency condensing furnaces. It’s superior to standard heat exchangers because it has a clamshell design, has a condenser coil assembly, and is made from patented ArmorTuf steel.

What it is in plain language: The heat exchanger is the heart of a furnace, and the Duralok Plus heat exchanger is special for two reasons: the design and the material. Clamshell heat exchangers don’t rely on welding to keep joints together, and ArmorTuf steel is a patented metal, so the Duralok Plus design is exclusive to Lennox.  

Is it more than just hype? Clamshell heat exchangers tend to have a longer life because they're less likely to crack or separate, and ArmorTuf steel has a special corrosion-resistant finish that can give it a longer life than regular steel. In other words, there's a good chance that a Duralok Plus heat exchanger could last longer than a standard one.

While the Duralok Plus design is exclusive to Lennox, they aren't the only company that has their own proprietary heat exchanger. Other examples include Armstrong’s EHX Technology, Napoleon’s Vortex Turbulator, and Heil’s, Tempstar’s, and Comfortmaker’s RPJ heat exchangers.

Feature 4 – Ultimate Comfort System

How Lennox describes it: A whole-home comfort system unlike any other that’s finely tuned to your home to provide clean indoor air.

What it is in plain language: The Ultimate Comfort System isn't so much a special feature as it is a collection of different technologies that can be paired with Lennox’s premium Dave Lennox Signature Collection models.

The system combines their iComfort S30 thermostat, PureAir S air purification technology, iHarmony zoning capabilities, and other devices to optimize home comfort and indoor air quality.

Is it more than just hype? The Ultimate Comfort System has the potential to improve your indoor air quality because it uses things like the iComfort S30, which tracks outdoor air quality and adjusts the fan settings to maintain good indoor air quality.

At the same time, achieving the Ultimate Comfort System requires purchasing quite a few additional technologies, including the iComfort S30 and the PureAir S system. Similar results could be achieved with just about any whole-home air purification system or air cleaner.  

Warranty Analysis

The warranty terms

Furnaces in the Dave Lennox Signature Collection and Elite series come with a lifetime heat exchanger warranty and a 10-year parts warranty.

However, Merit series furnaces come with a 10-year parts warranty and a shorter 20-year heat exchanger warranty.

Registration is required

For Elite and Merit furnaces, you must register the furnace after installation, and there's a 60-day deadline if you want to be eligible for the full warranty terms. Should you fail to register, then the parts warranty will only be valid for five years.

Fortunately, the registration process is quite simple, and you can do it online through the Lennox website. Here's what you'll need:

• The serial and model numbers
• The date of installation
• The name and address of the installer
• The brand, serial number, and model number of your other HVAC components
• Your email address

Registration is a very common requirement among HVAC manufacturers, and most have unregistered warranty terms and extended terms for registered units. However, Lennox is unique in asking for details about your other HVAC system components.

Conditions and restrictions

Beyond having to register your new furnace to take advantage of the full warranty terms, there are also other conditions you'll have to abide by to keep the warranty valid.

One of the most common conditions is requiring that the furnace be installed by a licensed HVAC professional. In other words, if you try to install the furnace yourself, then you risk voiding the warranty. That’s why you have to budget for the installation cost. 

Another common warranty obligation is that you take care of regular annual maintenance. If you're not sure what type of maintenance is required, then check the owner’s manual or the warranty conditions for details. And be sure to keep records and receipts for all service!

How the Lennox warranty measures up to the competition

While you might expect Lennox to offer better warranty terms than other brands, the truth is they don’t. Even though they charge more for their furnaces than most other manufacturers, they still have one of the most basic warranties in the industry.

One area where Lennox is lacking is the unit replacement warranty. A number of economy and mid-range brands have started offering these, which means the manufacturer will provide a brand new furnace if the heat exchanger fails during the coverage period. Here are some examples of brands that offer this type of protection: Comfortmaker, American Standard, York, Trane, Tempstar, Ruud, Rheem, Coleman, Napoleon, Luxaire, Amana KeepRite, Heil, Goodman, and Daikin.

Moreover, several brands offer lifetime heat exchanger warranties on all their high-efficiency furnaces, including their entry-level models. Brands that offer this level of coverage include Luxaire, Goodman, Daikin, Coleman, American Standard, and Amana (either through their unit replacement or heat exchanger warranty).

In fact, Armstrong Air, which is owned by the same parent company as Lennox, Lennox International, even offers a lifetime heat exchanger warranty on all their high-efficiency models.

Be a happy homeowner when you purchase a Lennox gas furnace. Fill out our online form and ask for a free quote.

Lennox’s Add-ons, Extras, and Thermostats

Programmable Thermostats

On top of their iComfort smart thermostats, Lennox also makes more basic programmable thermostats called ComfortSense. These devices allow you to program different temperature settings for various times of day and days of the week depending on whether you're home, away, or asleep.

Depending on the specific model, ComfortSense thermostats have capabilities like energy-saving away modes, filter maintenance reminders, dual fuel operation, and energy reports.

Programmable thermostats can indeed save you money, but they lack the benefit of remote operation because they aren't Wi-Fi compatible. They also rely on your programmed schedules, meaning they don’t learn your habits and adapt the way some smart thermostats can.

Zoning Systems

For homes that have different temperature needs in various parts of the house, you can consider a Lennox Harmony zoning system that works in conjunction with a smart or programmable thermostat.

Lennox has two- and four-zones systems that can monitor and maintain different temperature settings in two or four separate parts of the house.

These can be great for large homes, tall homes where lots of heat rises quickly, homes with rooms over cold garages, homes with sunrooms, or families who have different ideas of what a comfortable temperature is.

Air Purifiers

Lennox has a number of products that improve indoor air quality, including air purifiers, media air cleaners, HEPA filters, and UV germicidal lights. Products like this can be beneficial if you deal with a lot of wood smoke or pollution, have family members with allergies or lung disease, or are just concerned with indoor air quality.

Lennox air purification systems include the PureAir and PureAir S systems, which can clean the air of viruses, bacteria, fungi, ozone, odours, smoke, mold, pollen, dust, volatile organic compounds, and more.

They also have media air cleaners with MERV 11, 13, and 16, and these remove allergens, dust, pollen, and up to 95 percent of germs. Their hospital-grade HEPA filter is even more powerful, capable of eliminating up to 99.97 percent of particles as small as 0.3 microns.  

Finally, their UV germicidal light can clean the air in your home and keep your ductwork and HVAC systems cleaner by killing germs, fungi, and mold. As such, UV lights can potentially help to preserve the efficiency of your furnace and air conditioner and possibly extend their life expectancies.

Humidifiers and Dehumidifiers

Too little moisture in the air in your home can dry out wood and cause cracking, but it can also lead to dry skin, sore throats and noses, and static electricity that leads to shocks.

When you have problems with low humidity, a humidifier can add moisture to the air and eliminate the problems associated with dry air. Furthermore, air with some moisture in it can also feel warmer, so a humidifier could take some of the burden off your furnace in winter.

On the other end of the spectrum, air that has too much moisture can lead to mold growth, and it can also cause moisture damage to wood, walls, floors, ceilings, and paint. Plus, humid air can force your air conditioner to work harder in summer.

Lennox has a number of whole-home humidification and dehumidification systems that can solve your humidity problems by removing or adding moisture to the air.

Heat and Energy Recovery Ventilators

Heat recovery ventilators and energy recovery ventilators increase the amount of fresh air in your home, keep air circulating, eliminate stale air, and prevent contaminants from the outdoor air from entering, all without impacting the temperature of your home.

HRVs get rid of stale air from inside and bring in fresh air from outside, but while they do this, they also exchange heat. This way, the temperature of your home stays the same without any additional burden on your furnace or air conditioner. ERVs function the same way, but they exchange both heat and moisture from the air.

HRVs are great for ventilating your home in winter if you live in a cold climate, while ERVs are ideal if you live in a milder climate with more humid winters.  

About the Company

David Lennox, an American businessman, founded the furnace manufacturing business now known as “Lennox International” in 1895.

Lennox has consistently pushed technological boundaries, and year after year they’ve produced furnaces with consumers’ top priorities in mind.

With various options that are tiered to appeal to as many people as possible, chances are there’s a Lennox furnace that could suit your needs and home.

Lennox has moved from strength to strength since 1895, and with their loyal fanbase following their newest technology and products with passionate interest, making Lennox a safe bet if you’re looking for a brand-new high-efficiency furnace.

Eager to learn more about Lennox’s high-efficiency natural gas furnace line up? Fill out our online form, and one of our representatives will be happy to provide you with a free, no obligation quote.

Lennox FAQs

Why are Lennox furnaces so expensive?

There are a couple explanations for why Lennox furnaces are so much more expensive than a lot of competitors, and the first is brand recognition. Lennox pays a lot for marketing and advertising to ensure that their name is well-known, and this costs a lot of money.

Another reason is they put a lot of time and money into perfecting their products so that they can offer things like having the quietest, most efficient, and lowest emissions furnaces on the market.

How long do Lennox furnaces last?

With the right care and maintenance, a new furnace can be expected to last between 15 and 20 years on average.

That’s not to say a furnace won’t last longer, especially if you take good care of it.

If you want a good indicator of how long a furnace will truly last, then look at the warranty. Lennox warranties most of their furnaces—or at least the most important component—for the lifetime of the unit, meaning you can reasonably expect at least 20 years of reliable service.

Are Lennox furnaces worth the money?

Lennox furnaces are reliable, durable, and highly efficient and quiet. However, whether their furnaces are worth the cost depends largely on your individual budget, needs, and expectations.

If you want the best warranty and cool features, then a Lennox might not provide you with enough value. If your major concern is efficiency, then there are other brands that make efficient furnaces that come close to rivalling Lennox.

On the other hand, if you're looking for reliability, dependability, quiet operation, a brand name, and a prestigious reputation, then Lennox could be what you're looking for.

Remember too that Lennox’s most expensive furnace is also the most efficient one on the market, so it will also save you the most in the long-term on heating bills. It will also likely qualify for rebates, and this could make it more affordable and more worth the price.