Lennox Launches Gas Furnace Featuring Integrated Refrigerant Detection System

Lennox (NYSE: LII) launched the Dave Lennox Signature SLP99VK Gas Furnace on January 8, 2026, featuring an integrated Refrigerant Detection System (RDS) and up to 99% efficiency.

Rhea-AI Summary

Lennox (NYSE: LII) launched the Dave Lennox Signature SLP99VK Gas Furnace on January 8, 2026, featuring an integrated Refrigerant Detection System (RDS) and up to 99% efficiency.

The SLP99VK eliminates the need for a separate RDS installation kit to reduce dealer installation complexity, is dual-fuel compatible to pair with electric heat pumps, and integrates with the Lennox S40 Smart Thermostat, PureAir S purification, and other filtration products. It joins the Ultimate Comfort System and is available through Lennox dealers in North America.

Positive

• Efficiency up to 99%
• Built-in Refrigerant Detection System removes separate kit requirement
• Compatible with S40 Smart Thermostat and PureAir S for remote control and IAQ integration

Negative

• None.

Argus Jan 8 session

+2.31% close to close Open Argus

Details

News Market Reaction – LII

In the Jan 8 session, LII gained 2.31%, reflecting a moderate positive market reaction.

Data tracked by StockTitan Argus on the day of publication.

Market Context

This announcement highlights Lennox’s focus on premium, energy-efficient heating with the SLP99VK ga...

Analysis

This announcement highlights Lennox’s focus on premium, energy-efficient heating with the SLP99VK gas furnace, offering up to 99% efficiency and an integrated Refrigerant Detection System that simplifies installation. It extends the Ultimate Comfort System lineup and integrates with the S40 smart thermostat and air purification products. Investors may watch adoption of this high-end model, broader refrigerant-transition trends, and how the company uses its automatic S-3ASR shelf for future strategic initiatives.

Key Figures

Furnace efficiency: Up to 99%

Furnace efficiency

Up to 99%

Dave Lennox Signature SLP99VK gas furnace specification

Historical Context

5 past events · Latest: Dec 17

5 events

1. Dec 17

   Recognition award

   24h Move

   -1.0%

   Named to Drucker Institute Management Top 250 with strong financial and customer scores.

2. Dec 05

   Dividend declaration

   24h Move

   +1.4%

   Announced $1.30 quarterly dividend and set 2026 annual meeting date.

3. Nov 19

   CSR initiative

   24h Move

   -2.0%

   Donated 402 HVAC units through Feel The Love program across North America.

4. Oct 22

   Earnings update

   24h Move

   -10.2%

   Q3 2025 revenue decline and cautious guidance amid refrigerant transition and macro weakness.

5. Oct 16

   Acquisition deal

   24h Move

   -0.6%

   Agreed to acquire NSI’s HVAC division for about $550 million in cash.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

refrigerant detection system, dual-fuel, heat pump, smart thermostat, +2 more

6 terms

refrigerant detection system technical

"includes an integrated Refrigerant Detection System (RDS)."

A refrigerant detection system is a network of sensors and alarms that monitors air near cooling equipment for leaks of refrigerant gases and alerts operators if concentrations rise. For investors, it matters because leaks can trigger costly equipment shutdowns, regulatory fines, safety hazards, and higher operating costs—so effective detection protects assets, limits liability, and helps ensure continuous, compliant operations much like a home smoke detector protects against fire.

dual-fuel technical

"The furnace is dual-fuel compatible, allowing it to pair with an electric heat pump"

Dual-fuel describes equipment, vehicles, or power systems designed to run on two different types of fuel—typically a conventional fuel (like diesel) and an alternative fuel (like natural gas or hydrogen). For investors, dual-fuel capability matters because it acts like a built-in hedge: it can lower operating costs and regulatory risk by switching to the cheaper or cleaner fuel as conditions change, though it may require higher upfront investment and different maintenance.

heat pump technical

"compatible, allowing it to pair with an electric heat pump and alternate between fuel"

A heat pump is an electric device that moves warmth from one place to another—extracting heat from outside air, ground, or water to warm a building, or reversing to cool it—similar to how a refrigerator transfers heat to stay cold. Investors care because heat pumps cut energy use and emissions compared with traditional heaters, influencing demand for manufacturers, utility load patterns, fuel markets, and eligibility for incentives or regulations that can affect company revenues and long‑term operating costs for consumers.

smart thermostat technical

"compatible with the Lennox S40 Smart Thermostat, enabling advanced control, remote monitoring,"

A smart thermostat is a heating and cooling controller that connects to the internet and learns user preferences to automatically adjust temperature, can be controlled remotely by a phone, and often uses sensors and schedules to save energy. For investors it matters because these devices can reduce utility bills for consumers, create ongoing service or data revenue for makers, and act as an entry point into broader smart-home ecosystems that drive sales and customer loyalty.

air purification system technical

"connects with the PureAir™ S Air Purification System and other Lennox filtration products"

An air purification system is a device or setup that removes particles, gases, or biological contaminants from indoor air to improve cleanliness and reduce health risks—think of it as a vacuum cleaner or coffee filter for the air. Investors care because sales, regulatory approvals, operating costs, and demonstrated health benefits drive revenue potential and liability exposure; demand shifts and energy or maintenance requirements can directly affect a company’s profits and market value.

hvac technical

"Lennox Residential HVAC, a leader in energy-efficient home comfort solutions, announced today"

HVAC stands for heating, ventilation and air conditioning — the systems that control temperature, airflow and indoor air quality in buildings. Investors care because HVAC drives operating costs, energy use, tenant comfort and regulatory compliance; like the engine and insulation of a building, efficient modern systems can lower bills, reduce repair and replacement spending, and preserve property value, while outdated units can create unexpected expenses and vacancy risk.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

The new Dave Lennox Signature^® Collection SLP99VK Gas Furnace achieves up to 99% efficiency and includes an integrated Refrigerant Detection System (RDS).

DALLAS, Jan. 8, 2026 /PRNewswire/ -- Lennox Residential HVAC, a leader in energy-efficient home comfort solutions, announced today the release of the Dave Lennox Signature^® SLP99VK Gas Furnace, designed to deliver high-efficiency heating with built-in refrigerant detection capability.

The SLP99VK is integrated with a Refrigerant Detection System (RDS), eliminating the need for a separate installation kit and reducing overall installation costs for dealers.

"This addition to the Dave Lennox Signature Collection simplifies installation and enhances the value we deliver to dealers and homeowners," said Lanessa Bannister, Vice President and General Manager, Lennox Residential HVAC. "By integrating the RDS, we're helping customers save time and provide homeowners with a reliable, efficient solution built for today's evolving safety standards."

The SLP99VK offers an efficiency rating of up to 99%, converting nearly all the energy used into heating the home. The furnace is dual-fuel compatible, allowing it to pair with an electric heat pump and alternate between fuel sources to help optimize comfort and efficiency in varying weather conditions.

The unit is compatible with the Lennox S40 Smart Thermostat, enabling advanced control, remote monitoring, and system diagnostics. It also connects with the PureAir^™ S Air Purification System and other Lennox filtration products to support improved indoor air quality.

Part of the Ultimate Comfort System, the SLP99VK Gas Furnace joins the highest-efficiency products Lennox offers to provide homeowners with consistent temperature control and quiet operation year-round.

The SLP99VK Gas Furnace is now available through Lennox dealers in North America. For more information, visit Lennox.com.

Lennox (NYSE: LII) is a leader in energy-efficient climate-control solutions. We are committed to sustainability and creating comfortable, healthier environments for residential and commercial customers. Our innovative portfolio includes cooling, heating, indoor air quality, and refrigeration systems, along with a comprehensive range of HVAC parts, supplies, and services that support the full lifecycle of customer needs. Additional information is available at www.lennox.com. For media inquiries, contact PR@lennox.com.

View original content to download multimedia:https://www.prnewswire.com/news-releases/lennox-launches-gas-furnace-featuring-integrated-refrigerant-detection-system-302655515.html

SOURCE Lennox International Inc.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What efficiency rating does the Lennox SLP99VK gas furnace (LII) offer?

The SLP99VK offers up to 99% efficiency.

How does the integrated Refrigerant Detection System affect installation for Lennox SLP99VK (LII)?

The integrated RDS removes the need for a separate installation kit, lowering installation complexity and related costs for dealers.

Is the Lennox SLP99VK gas furnace compatible with smart thermostats and air quality systems?

Yes; the SLP99VK is compatible with the S40 Smart Thermostat and the PureAir S purification and other Lennox filtration products.

Can the Lennox SLP99VK (LII) work with an electric heat pump?

Yes; the unit is dual-fuel compatible and can pair with an electric heat pump to alternate fuel sources.

Where and when is the Lennox SLP99VK gas furnace available for purchase?

The SLP99VK is now available through Lennox dealers in North America as of January 8, 2026.