Cooling
Explore variable-capacity cooling for your home's needs.
Explore cooling ↗BENCHMARK • GREATER ST. LOUIS
Benchmark SignatureHome Comfort Systems
✓ Family-owned✓ 20+ years of experience✓ Local home comfort
Call (636) 322-4060Email about a new systemFeaturing Dave Lennox Signature® Collection heating and cooling. Your equipment recommendation starts with your home.
Where would you
like to start?
Talk with our team ↗
Ask about your equipment, replacement plans, or a current comfort concern.
Explore equipment ↗
Take a closer look at featured Lennox Signature Collection options.
Plan maintenance ↗
Contact us about routine care for the system you already have.
A whole-home approach to comfort.
Start with the part of your home you'd like to improve. We'll help you talk through how the equipment fits together.
Heating
Discuss heating equipment for St. Louis seasons.
Explore heating ↗
Whole-home comfort
Consider equipment, controls, and indoor air together.
See the system ↗Plan your next system
with a clear starting point.
A few useful conversations can help you understand your options before deciding what's right for your home.
STEP 01
Tell us about your home
Share your comfort concerns, your current system, and what you're considering.
STEP 02
Explore your options
Discuss heating, cooling, controls, and indoor air quality with our team.
STEP 03
Confirm the details
Ask about equipment fit, current model availability, and the scope of your project.
STEP 04
Plan the next step
Contact Benchmark to discuss scheduling and move your home comfort project forward.
A closer look at
Signature Collection comfort.
Heating and cooling equipment designed to adjust output as your home needs it.
Cooling that can adjust.
The SL25KCV uses variable-capacity cooling. Instead of a single operating level, it can adjust its output in response to cooling needs.
A considered approach to heating.
The SLP99V brings variable-capacity gas heating to the Signature Collection. Talk with Benchmark about the right heating system for your space.
LENNOX ULTIMATE COMFORT SYSTEM™
Bring the pieces together.
Equipment, indoor air care, and comfort controls are part of a connected home comfort conversation. The system shown illustrates that whole-home approach.
Talk about your home ↗Planning a replacement?
Tell us about your existing equipment, your comfort goals, and the questions you'd like answered.
Start a conversation ↗Caring for your current system?
Explore service and maintenance with Benchmark before choosing your next step.
Explore maintenance ↗Three ways systems
manage their output.
Understanding the terminology can make an equipment conversation easier.
Single-stage
Example: Lennox ML14KC1
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Runs at one output level when on. The system manages demand by changing how long it runs.
Single-stage
Runs at one output level when on. The system manages demand by changing how long it runs.
Two-stage
Example: Lennox ML17KC2
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Uses a lower or higher operating level, depending on what the home needs.
Two-stage
Uses a lower or higher operating level, depending on what the home needs.
Variable-capacity
Example: Lennox SL25KCV
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Adjusts output across a range to respond to changing heating or cooling demand.
Variable-capacity
Adjusts output across a range to respond to changing heating or cooling demand.
Explore your equipment options.
These featured products are a starting point. Model availability and matched-system details are confirmed during your consultation.
Heating + cooling, selected together for your home.
Explore Signature, Elite, and Merit component examples. Each starts a conversation about your home, with the coil, controls, sizing, and verified equipment match selected before installation.
Official Lennox Ultimate Comfort System illustration. Optional components shown; final equipment and controls are selected for your home.
SL25KCV cooling
SLP99V heating
LENNOX SIGNATURE / SELECTED COMPONENT EXAMPLE
Signature whole-home
SL25KCV cooling + SLP99V gas heating, with a compatible indoor coil and controls selected for your home. Final compatibility, sizes, and availability are confirmed during consultation.
Outdoor-unit catalogue: 25.10 SEER2 in Lennox spec table¹. Variable-capacity cooling.
Furnace catalogue: up to 99% AFUE. Modulating heating; variable-speed blower.
System selection: these are separate component ratings, not a certified matched-system rating or fixed package. Actual installed cooling efficiency depends on the selected coil, furnace, equipment size, and verified match.
AC base limited warranty: 10-year compressor and covered components.
Furnace limited warranty: 10-year limited covered parts; limited-lifetime heat exchanger for the original residential owner (20 years for subsequent residential owners). Coil, controls, and optional indoor-air equipment have their own terms. Labor is not automatically included.
Long-term cost: depends on installation, climate, energy rates, use, maintenance, and repairs. Higher rated efficiency does not guarantee a specific lifetime saving.
Official Lennox Elite Series system illustration. Models and optional components pictured may differ from the selected examples; your final system is confirmed during consultation.
EL22KCV cooling
EL297V heating
LENNOX ELITE / SELECTED COMPONENT EXAMPLE
Elite whole-home
EL22KCV cooling + EL297V gas heating, with a compatible indoor coil and controls selected for your home. Final compatibility, sizes, and availability are confirmed during consultation.
Outdoor-unit catalogue: Up to 22.5 SEER2. Variable-capacity cooling.
Furnace catalogue: up to 97% AFUE. Two-stage heating; variable-speed blower.
System selection: these are separate component ratings, not a certified matched-system rating or fixed package. Actual installed cooling efficiency depends on the selected coil, furnace, equipment size, and verified match.
AC base limited warranty: 10-year compressor; 5-year covered components.
Furnace limited warranty: 5-year limited covered parts, with an eligible 10-year parts option; limited-lifetime heat exchanger. Coil, controls, and optional indoor-air equipment have their own terms. Labor is not automatically included.
Long-term cost: depends on installation, climate, energy rates, use, maintenance, and repairs. Higher rated efficiency does not guarantee a specific lifetime saving.
Official Lennox Merit Series system illustration. Models and optional components pictured may differ from the selected examples; your final system is confirmed during consultation.
ML17KC2 cooling
ML196E heating
LENNOX MERIT / SELECTED COMPONENT EXAMPLE
Merit whole-home
ML17KC2 cooling + ML196E gas heating, with a compatible indoor coil and controls selected for your home. Final compatibility, sizes, and availability are confirmed during consultation.
Outdoor-unit catalogue: Up to 18 SEER2. Two-stage cooling.
Furnace catalogue: up to 96% AFUE. Single-stage heating; constant-torque blower.
System selection: these are separate component ratings, not a certified matched-system rating or fixed package. Actual installed cooling efficiency depends on the selected coil, furnace, equipment size, and verified match.
AC base limited warranty: 5-year compressor and covered components.
Furnace limited warranty: 5-year limited covered parts, with an eligible 10-year parts option; 20-year limited heat exchanger. Coil, controls, and optional indoor-air equipment have their own terms. Labor is not automatically included.
Long-term cost: depends on installation, climate, energy rates, use, maintenance, and repairs. Higher rated efficiency does not guarantee a specific lifetime saving.
SIGNATURE COLLECTION / WHOLE-HOME
Lennox Ultimate Comfort System™
Discuss the heating, cooling, controls, and indoor air components that make sense together in your home.
ApproachWhole-home comfort
EquipmentMatched components
ControlsCompatibility confirmed
SelectionBased on your home
How to read these comparisons
Benchmark comparison guide for the selected examples. These bars are our relative guide, not manufacturer ratings or guaranteed savings.
Cooling efficiency: 1 = below 16, 2 = 16–below 18, 3 = 18–below 20, 4 = 20–below 24, 5 = 24+ SEER2. Component catalogue values only.
Heating efficiency: 1 = below 80%, 2 = 80–below 90%, 3 = 90–below 96%, 4 = 96–below 98%, 5 = 98%+ AFUE.
Output control: single-stage = 1, two-stage = 3, variable-capacity cooling or modulating heat = 5. More bars indicate more output modulation; blower speed is shown separately.
Each heating and cooling score stands on its own. They are not added or averaged into a whole-system efficiency score. Your final equipment match determines the installed rating.
Selected examples only. Ask Benchmark to confirm model availability, equipment matching, and applicable warranty terms. Eligible extended warranty options may require registration within 60 days, subject to statutory exceptions; labor is not automatically included.
¹ Lennox’s SL25KCV headline advertises up to 26 SEER2 while its specifications table lists 25.10. We show the table value here. Confirm your exact matched-system rating before purchase.
Lennox warranty details ↗Selected Lennox cooling models.
A starting point for your cooling-system conversation. Explore six selected models from Lennox Signature, Elite, and Merit. Ask Benchmark to confirm availability and the right match for your home. The 1–5 guide uses the published-spec rubric below.
LENNOX SIGNATURE / VARIABLE-CAPACITY
SL25KCV
Signature Collection variable-capacity cooling.
Published efficiency: 25.10 SEER2 in Lennox spec table¹
Published sound: As low as 58 dB
Base limited warranty: 10-year compressor and covered components.
Long-term cost: depends on the installed system, energy rates, usage, maintenance, and repairs. Ask for a matched-system quote and discuss your priorities.
LENNOX ELITE / VARIABLE-CAPACITY
EL22KCV
Elite variable-capacity cooling with a published efficiency rating up to 22.5 SEER2.
Published efficiency: Up to 22.5 SEER2
Published sound: As low as 60 dB
Base limited warranty: 10-year compressor; 5-year covered components.
Long-term cost: depends on the installed system, energy rates, usage, maintenance, and repairs. Ask for a matched-system quote and discuss your priorities.
LENNOX ELITE / VARIABLE-CAPACITY
EL18KCV
Elite variable-capacity cooling with a different published efficiency and sound profile.
Published efficiency: Up to 19.5 SEER2
Published sound: As low as 67 dB
Base limited warranty: 10-year compressor; 5-year covered components.
Long-term cost: depends on the installed system, energy rates, usage, maintenance, and repairs. Ask for a matched-system quote and discuss your priorities.
LENNOX ELITE / SINGLE-STAGE
EL16KC1
Elite single-stage cooling. Ask how it fits your home and existing system.
Published efficiency: Up to 17 SEER2
Published sound: As low as 72 dB
Base limited warranty: 10-year compressor; 5-year covered components.
Long-term cost: depends on the installed system, energy rates, usage, maintenance, and repairs. Ask for a matched-system quote and discuss your priorities.
LENNOX MERIT / TWO-STAGE
ML17KC2
Merit two-stage cooling with lower and higher operating levels.
Published efficiency: Up to 18 SEER2
Published sound: As low as 73 dB
Base limited warranty: 5-year compressor and covered components.
Long-term cost: depends on the installed system, energy rates, usage, maintenance, and repairs. Ask for a matched-system quote and discuss your priorities.
LENNOX MERIT / SINGLE-STAGE
ML14KC1
Merit single-stage cooling; confirm the efficiency of your matched system.
Published efficiency: Meets or exceeds 14.3 SEER2²
Published sound: As low as 73 dB
Base limited warranty: 5-year compressor and covered components.
Long-term cost: depends on the installed system, energy rates, usage, maintenance, and repairs. Ask for a matched-system quote and discuss your priorities.
How to read the 1–5 bars.
These relative guide scores are calculated from published equipment specifications. Higher scores mean higher published cooling efficiency, more output modulation, or a lower published minimum sound level.
Efficiency: below 16 SEER2 = 1; 16 to below 18 = 2; 18 to below 20 = 3; 20 to below 24 = 4; 24 and above = 5.
Output flexibility: single-stage = 1; two-stage = 3; variable-capacity = 5. This describes modulation, rather than guaranteeing a particular room temperature.
Quiet operation: published minimum 73 dB and above = 1; 70–72 = 2; 65–69 = 3; 60–64 = 4; below 60 = 5. Actual installation sound varies.
¹ SL25KCV: Lennox's specification table lists 25.10 SEER2 while its headline lists up to 26. Both fall in guide score 5. Confirm the exact rating of the matched system before selecting equipment.
² ML14KC1's score uses the published 14.3 SEER2 baseline. Manufacturer efficiency and sound figures vary by model size and system match. Guide scores are not manufacturer ratings or lifetime-cost estimates.
Warranty rows show base manufacturer limited coverage. Terms and exclusions apply. Residential eligibility, registration, and optional programs can affect parts and labor coverage. Confirm the exact terms for your installation. Review Lennox warranty information ↗
SIGNATURE COLLECTION / COOLING
SL25KCV Air Conditioner
Discuss variable-capacity cooling, compatible controls, and how the SL25KCV might fit your home.
System roleAir conditioning
Capacity controlVariable-capacity
CollectionDave Lennox Signature®
SelectionMatched to your home
Selected Lennox heating models.
Compare one Signature, Elite, and Merit gas-furnace example using published efficiency and heat-output control. Ask Benchmark about availability and the right fit for your home.
LENNOX SIGNATURE / MODULATING HEAT
SLP99V
Modulating gas heating with a variable-speed blower. A selected Signature example to discuss for your home.
Published efficiency: up to 99% AFUE.
Airflow: Variable-speed blower. Blower speed and heating stages describe different functions.
Limited warranty: 10-year limited covered parts; limited-lifetime heat exchanger for the original residential owner (20 years for subsequent residential owners).
Terms and eligibility apply. Optional extended coverage may require registration within 60 days, subject to statutory exceptions. Labor coverage is not automatically included.
Long-term cost: depends on installation, climate, energy rates, use, maintenance, and repairs. Higher rated efficiency does not guarantee a specific lifetime saving.
LENNOX ELITE / TWO-STAGE HEAT
EL297V
Two-stage gas heating with a variable-speed blower. A selected Elite example to discuss for your home.
Published efficiency: up to 97% AFUE.
Airflow: Variable-speed blower. Blower speed and heating stages describe different functions.
Limited warranty: 5-year limited covered parts, with an eligible 10-year parts option; limited-lifetime heat exchanger.
Terms and eligibility apply. Optional extended coverage may require registration within 60 days, subject to statutory exceptions. Labor coverage is not automatically included.
Long-term cost: depends on installation, climate, energy rates, use, maintenance, and repairs. Higher rated efficiency does not guarantee a specific lifetime saving.
LENNOX MERIT / SINGLE-STAGE HEAT
ML196E
Single-stage gas heating with a constant-torque blower. A selected Merit example to discuss for your home.
Published efficiency: up to 96% AFUE.
Airflow: Constant-torque blower. Blower speed and heating stages describe different functions.
Limited warranty: 5-year limited covered parts, with an eligible 10-year parts option; 20-year limited heat exchanger.
Terms and eligibility apply. Optional extended coverage may require registration within 60 days, subject to statutory exceptions. Labor coverage is not automatically included.
Long-term cost: depends on installation, climate, energy rates, use, maintenance, and repairs. Higher rated efficiency does not guarantee a specific lifetime saving.
SIGNATURE COLLECTION / HEATING
SLP99V Gas Furnace
Explore variable-capacity heating as part of a system selected for your home's requirements.
System roleGas heating
Capacity controlVariable-capacity
CollectionDave Lennox Signature®
SelectionMatched to your home
How to read these comparisons
Benchmark comparison guide for the selected examples. These bars are our relative guide, not manufacturer ratings or guaranteed savings.
Heating efficiency: 1 = below 80%, 2 = 80–below 90%, 3 = 90–below 96%, 4 = 96–below 98%, 5 = 98%+ AFUE.
Output control: single-stage = 1, two-stage = 3, variable-capacity cooling or modulating heat = 5. More bars indicate more output modulation; blower speed is shown separately.
AFUE describes gas-furnace efficiency under standard test conditions. Actual energy use and comfort also depend on installation, sizing, your home, and operation.
Selected examples only. Ask Benchmark to confirm model availability, equipment matching, and applicable warranty terms. Eligible extended warranty options may require registration within 60 days, subject to statutory exceptions; labor is not automatically included.
Lennox warranty details ↗Product imagery is illustrative. Specific equipment, compatibility, efficiency ratings, pricing, availability, and warranty terms are confirmed for the system selected.
Choose around what matters to you.
Bring your priorities to the conversation. We'll start with your home, rather than a one-size-fits-all package.
Comfort
Rooms, temperatures, and everyday needs.
System fit
Your home and existing equipment.
Controls
How you'd like to manage comfort.
Indoor air
Filtration and humidity-control options.
FAMILY-OWNED. LOCALLY FOCUSED.
20+ years of experience.
Your home at the center.
Benchmark serves Greater St. Louis with heating, cooling, and indoor air care. Reach our team directly to discuss your equipment questions.
Meet Benchmark ↗Before you choose a new system.
Which model is right for my home?
The recommendation depends on your home's requirements and the equipment it will work with. Contact Benchmark to discuss the details.
Can I ask about indoor air quality?
Yes. Discuss filtration and humidity-control options, including AprilAire where appropriate, alongside your heating and cooling needs.
Explore indoor air quality ↗What about pricing and installation timing?
Call or email with your request. Project details and current availability are confirmed directly with our team.
What if my current system needs service?
Tell us what's happening. You can discuss a repair or maintenance request before deciding whether to replace equipment.
Explore heating and cooling service ↗GREATER ST. LOUIS
Let's talk about your home.
Call or email to confirm service at your address and discuss your next system.
Call (636) 322-4060 ↗