$9,020.00Original price was: $9,020.00.$8,836.00Current price is: $8,836.00.
4 Ton Merit Single Stage System – Complete Home Comfort
The 4 Ton Merit Single-Stage System delivers reliable, energy-efficient heating and cooling for your home. This all-in-one bundle includes the ML14KC1 air conditioner, ML180E furnace, and CK40HT-71 horizontal evaporator coil, providing quiet, dependable performance year-round.
With a SEER2 of 14.7 and EER2 of 12.6, it balances comfort and energy savings while meeting 2025 refrigerant standards. Braze-free installation and a built-in Refrigerant Detection System make setup and operation simple. Ideal for homeowners seeking a complete, affordable HVAC solution, while our Elite systems offer higher efficiency and advanced comfort.
✅ Powerful 4 Ton single-stage cooling and heating ✅ Energy-efficient SEER2 14.7 / EER2 12.6 ✅ Quiet, durable, and low-maintenance ✅ Complete bundle with AC, furnace, and horizontal coil
4 Ton-Merit Single Stage System – Ultimate Home Comfort Bundle
Enhance your home’s climate control with the 4 Ton Merit Single-Stage System. This complete HVAC bundle combines the ML14KC1 air conditioner, ML180E gas furnace, and CK40HT-71 horizontal evaporator coil to deliver year-round comfort, efficiency, and reliable performance for modern homes.
SEER2: 14.7
EER2: 12.6
With a SEER2 of 14.7 and EER2 of 12.6, this 4 Ton Merit Single-Stage System balances dependable cooling with energy efficiency. Built to meet 2025 refrigerant standards, it helps reduce your home’s environmental footprint while keeping every room comfortable.
Dependable Cooling – ML14KC1 Air Conditioner
The ML14KC1 air conditioner provides standard-efficiency, single-stage cooling with 14.7 SEER2 and 12.6 EER2. ENERGY STAR® Certified and eligible for federal tax credits, this system reduces energy costs without compromising performance. Its high-efficiency outdoor coil maximizes heat transfer, while the single-stage compressor delivers consistent cooling. Quiet operation at 73 dB ensures a peaceful home environment.
Efficient Heating – ML180E Gas Furnace
The ML180E furnace offers consistent, even heat with an 80% AFUE efficiency rating. Its Power Saver™ constant torque motor automatically adjusts airflow for quieter, more efficient operation. Dual-fuel capability with a Lennox® heat pump allows seamless switching between gas and electricity to optimize energy use and comfort.
The CK40HT-71 horizontal coil improves heat transfer and maintains quiet operation. Aluminum-cased and factory-equipped with a TXV and Refrigerant Detection System (RDS), it ensures safe, efficient performance. Braze-free installation makes setup easier and offers flexibility for modern HVAC configurations.
Why Homeowners Choose This 4 Ton HVAC System
Ideal for homeowners seeking a complete, central air conditioning and heating solution, this bundle simplifies installation, qualifies for federal tax incentives, and provides long-term reliability. Whether upgrading your current HVAC setup or installing a new system, it delivers comfort, efficiency, and peace of mind.
Key Advantages at a Glance
✅ 4 Ton single-stage cooling and heating for complete home comfort ✅ SEER2 14.7 and EER2 12.6 for energy efficiency and savings ✅ Quiet and durable components for long-lasting performance ✅ Complete bundle including air conditioner, furnace, and horizontal coil ✅ Braze-free installation for flexible, modern HVAC solutions ✅ Built-in Refrigerant Detection System for added safety ✅ Perfect HVAC system for homeowners seeking reliable year-round comfort
Air Conditioner Overview
Model #: ML14KC1-048
Product Overview:
Merit® Series | ML14KC1 Air Conditioner – Standard-Efficiency, Future-Ready Cooling
The Merit® Series ML14KC1 is a standard-efficiency air conditioner unit designed to deliver reliable and energy-efficient air conditioning for your home. Compatible with 2025 Compliant Refrigerant, this unit ensures both comfort and environmental responsibility while meeting the latest EPA and industry standards. Homeowners searching for dependable heating and air conditioning units or a full central air conditioning system will appreciate the ML14KC1’s performance, efficiency, and long-lasting reliability.
Energy Efficiency & Performance
This unit meets or exceeds a 14.30 SEER2 efficiency rating, making it a top choice among air conditioning systems for sale. Additionally, it is ENERGY STAR® Certified, exceeding federal energy-efficiency guidelines, and is eligible for the Federal Tax Credit under the Energy Efficient Home Improvement Credit (IRC Section 25C). Its high-efficiency outdoor coil ensures exceptional heat transfer with minimal air resistance. The single-stage compressor operates at full capacity when needed, delivering dependable home air conditioner performance and supporting efficient central air AC unit operation.
Quiet & Comfortable Operation
Operating at sound levels as low as 73 dB, the ML14KC1 promotes a quieter home environment. Its precision-balanced, direct-drive outdoor fan reduces noise while enhancing durability. This makes it an ideal air conditioning unit for homes for homeowners seeking both comfort and quiet operation.
Craftsmanship & Reliability
The Quantum™ Coil, made from exclusive aluminum alloy, is engineered to withstand extreme conditions. The heavy-gauge, galvanized steel cabinet with louver coil guard, baked-on powder finish, and zinc-coated steel base provides superior resistance against rust and corrosion. Braze-free installation ensures flexibility for 2025 compliant systems, while built-in drainage holes prevent moisture buildup, enhancing the reliability of your heating and cooling units.
Safety & Sustainability
Using R-454B refrigerant, this system complies with 2025 EPA lower-GWP standards. The built-in Refrigerant Detection System (RDS) ensures A2L refrigerant safety compliance by detecting leaks, stopping operation, and activating the indoor blower to safely disperse refrigerant. This makes it a safe and efficient air conditioning system replacement.
Complete Comfort System Option
For complete home comfort, pair the ML14KC1 Air Conditioner with a compatible Lennox® furnace and evaporator coil to create a full central air AC unit solution. This combination delivers efficient, safe, and reliable heating and air supplies near me performance throughout the year.
Key Benefits at a Glance
✅ Standard-efficiency air conditioner unit with 14.30 SEER2 rating ✅ ENERGY STAR® Certified and federal tax credit eligible ✅ Durable Quantum™ Coil built to withstand extreme conditions ✅ Quiet operation at sound levels as low as 73 dB ✅ Flexible braze-free installation design ✅ Built-in Refrigerant Detection System for enhanced safety ✅ Bundle option available with furnace and coil for complete home comfort
Product Specifications:
Brand
Lennox
Catalog Number
25C96
Model/Part Number
ML14KC1-048-230
Base Unit of Measure
Unit(S)
Family
ML14KC1
Series
Merit
Type
Single-Stage Air Conditioner
Nominal Cooling Capacity
4 Ton
Product Voltage
208-230 VAC 1 Ph 60Hz
Product Width
28.7 Inch
Product Height
43.1 Inch
Compressor Type
1 Stage
Number of Compressors
1 Compressor
SEER2
Meets or exceeds 14.30 SEER2
Gross Weight
235.0 Lbs
Liquid Line OD
3/8 Inch
Suction Line OD
7/8 Inch
Energy Star Certified
Yes
Refrigerant Type
R-454B
Product Length
28.7 Inch
Furnace Overview
Model #: ML180UH090E48B
Order #: 79W72
Product Overview:
Merit® Series | ML180E Gas Furnace – Economical Heating with Power Saver™ Technology
The Merit® Series ML180E is an economical furnace and heating unit engineered to provide reliable, energy-efficient heating and air conditioning for your home. Featuring Lennox’s Power Saver™ constant torque motor, this furnace adjusts airflow based on demand, operating more efficiently than a standard motor while delivering consistent comfort. Built with durable materials and dual-fuel capability, it provides flexibility and long-lasting performance for homeowners seeking a dependable heating and cooling system.
Energy Efficiency & Performance
With an 80% AFUE efficiency rating, the ML180E keeps your home comfortable while reducing energy costs. The Power Saver™ constant torque motor automatically adjusts airspeed based on demand, improving efficiency compared to standard motors. Additionally, dual-fuel operation allows the system to switch seamlessly between electricity and gas when paired with a Lennox® heat pump, delivering optimal energy savings. This furnace is ideal for those looking for a reliable central air heating and cooling unit.
Quiet & Comfortable Operation
The constant torque motor ensures smoother, quieter airflow compared to single-speed motors, while consistent heat distribution reduces hot and cold spots throughout your home. This makes the ML180E a perfect heating and air supplies near me solution for homeowners prioritizing comfort and quiet operation.
Craftsmanship & Reliability
Constructed with high-quality steel, this furnace is built for long-lasting durability. It is designed and tested to provide dependable performance under a variety of conditions, reflecting Lennox’s commitment to quality. Homeowners can trust this furnace and AC system to deliver reliable performance for years.
Safety & Sustainability
The ML180E meets all industry safety standards for secure and dependable operation. Its dual-fuel capability supports energy savings and reduced fossil fuel use, making it a responsible choice for environmentally conscious heating and air conditioning units.
Complete Comfort System Option
For year-round home comfort, pair the ML180E Furnace with a compatible Lennox® air conditioner or heat pump to create a full central air AC unit solution. This combination ensures efficient, safe, and reliable heating and cooling units operation throughout the year.
Key Benefits at a Glance
✅ Economical furnace and heating unit with 80% AFUE efficiency ✅ Power Saver™ motor improves efficiency and airflow ✅ Dual-fuel capable with Lennox® heat pump pairing ✅ Built with high-quality steel for long-lasting durability ✅ Quiet, consistent operation for improved comfort ✅ Bundle option available with AC or heat pump for year-round comfort
Product Specifications:
Brand
Lennox
Catalog Number
79W72
Model/Part Number
ML180UH090E48B
Base Unit of Measure
Unit(S)
Family
ML180E
Series
Merit
Heating Capacity
88000 Btuh
Heating Efficiency
80% AFUE
Configuration
Upflow/Horizontal
Blower Size
4 Ton
Gas Stages
1 Stage Heat
Blower Type
Constant Torque
Product Voltage
115 VAC 1 Ph 60 Hz
Product Depth
27.75 Inch
Product Width
17.5 Inch
Product Height
33 Inch
Gross Weight
142 lbs.
Type
1-Stage Constant Torque Horizontal Gas Furnace
Energy Star Certified
No
California Only
This furnace does not meet the South Coast Air Quality Management District (SCAQMD) Rule 1111 and San Joaquin Valley Air Pollution Control District (SJVAPCD) Rule 4905 NOx emission limit (14 ng/J) and cannot be installed within the SCAQMD and SJVAPCD areas.
The CK40HT-71 is a horizontal, full-cased air conditioning unit designed for use with Lennox® air conditioners units and heat pump AC systems. Engineered specifically for R-454B refrigerant, this coil combines efficiency, durability, and safety. Additionally, factory-installed components, such as a thermostatic expansion valve and Refrigerant Detection System (RDS) sensor, ensure dependable heating and cooling units operation while maintaining compliance with A2L refrigerant safety standards. Homeowners searching for reliable air conditioning systems for sale will find this unit an excellent choice.
Energy Efficiency & Performance
This evaporator coil is available in 1.5- to 5-ton capacities, supporting a wide range of central air conditioning units and home air conditioner applications. The factory-installed R-454B thermostatic expansion valve promotes efficient operation, while the large coil surface area maximizes heat transfer and improves overall system efficiency. Furthermore, minimal air resistance ensures smoother airflow and optimized performance, making it an effective air conditioning supply option.
Quiet & Comfortable Operation
Its horizontal, full-cased design supports flexible installation in various configurations, allowing for quieter air conditioner units for homes operation. Efficient airflow contributes to reduced noise levels and enhanced overall comfort for any household air conditioning system replacement.
Craftsmanship & Reliability
Braze-free installation capability simplifies setup and adds flexibility for heating and air conditioning units. Sleeved distributor tubes and rifled aluminum tubing enhance coil durability, while the non-corrosive, UV-resistant polymer drain pan with dual connections resists leaks and extends service life. Improved gasketing reduces moisture intrusion, ensuring long-term reliability for your central air AC unit.
Safety & Sustainability
The factory-installed RDS sensor communicates with the blower control to initiate a flush sequence if a refrigerant leak is detected, ensuring safe operation. Factory-applied A2L refrigerant labeling supports compliance with 2025 safety standards. Additionally, this coil is fully compatible with R-454B refrigerant, meeting lower-GWP EPA regulations, making it a safe and environmentally responsible air conditioning system replacement. The included RDS line set sleeve ensures safe installation per manufacturer instructions.
Manufacturer Cross-Reference
Equivalent to: Goodman CHPT, Daikin CHPT, Franklin CHPT, Amana CHPT
Key Benefits at a Glance
✅ Horizontal, full-cased R-454B dedicated air conditioning unit ✅ Factory-installed TXV for high-efficiency operation ✅ Built-in RDS sensor with flush sequence for safety ✅ Braze-free installation flexibility ✅ Durable construction with rifled aluminum tubing and sleeved distributor tubes ✅ Non-corrosive, UV-resistant polymer drain pan with dual connections ✅ Compatible with Goodman, Daikin, Franklin, and Amana CHPT models
SEER stands for Seasonal Energy Efficiency Ratio. It measures the cooling efficiency of an air conditioner or heat pump over an entire cooling season. Essentially, it tells you how much cooling output (BTUs) you get for every unit of energy (watt-hour) used.
Higher SEER = more efficient
SEER ratings have traditionally been used in the U.S. to compare energy efficiency across systems.
Example: A 14 SEER unit uses less electricity than a 10 SEER unit to produce the same cooling.
What is SEER2?
SEER2 is the updated efficiency rating standard that reflects new federal testing procedures implemented by the Department of Energy (DOE) in 2023. It measures efficiency more accurately by accounting for real-world conditions, including:
Energy usage in modern airflow and installation configurations
More realistic climate and seasonal variations
Changes in the refrigerants and equipment designs
Key difference: SEER2 ratings tend to be slightly lower than SEER ratings for the same unit, but they provide a truer representation of actual efficiency in your home.
Why SEER2 is the new standard
The DOE updated testing to better match how systems perform in real homes, rather than ideal lab conditions.
It encourages manufacturers to improve real-world efficiency, not just test-case efficiency.
For consumers, SEER2 ensures:
Better long-term energy savings
Improved comfort through more accurate performance expectations
Compliance with modern federal efficiency regulations
In short:
SEER = old efficiency measurement (ideal lab conditions)
SEER2 = modern, realistic efficiency standard (real-world performance)
Better quality = SEER2 units are designed and tested to give actual efficiency and savings, not just theoretical numbers.
Understanding EER vs EER2
What is EER?
EER stands for Energy Efficiency Ratio. It measures an air conditioner or heat pump’s efficiency at a single, specific outdoor temperature, usually 95°F.
Higher EER = more efficient at peak conditions.
Unlike SEER, which averages efficiency over a season, EER tells you how the unit performs under hot, steady-state conditions.
Example: A unit with an EER of 12 produces 12 BTUs of cooling for every watt of electricity consumed.
What is EER2?
EER2 is the updated testing standard introduced by the Department of Energy (DOE) to match the same real-world adjustments as SEER2.
Accounts for modern system designs, refrigerants, and installation configurations.
Measures efficiency more realistically under peak operating conditions, rather than just ideal lab setups.
Like SEER2, EER2 numbers are usually slightly lower than traditional EER, but they are a more accurate reflection of actual performance.
Why EER2 is the new standard
Ensures consistency with SEER2 testing methodology.
Reflects true cooling efficiency under extreme heat, where peak performance matters most.
Helps consumers understand real-world energy use and savings potential during the hottest days.
Meets modern federal efficiency regulations and encourages manufacturers to improve performance under actual conditions.
In short:
EER = old standard, measured under lab conditions at 95°F
EER2 = modern standard, measured under realistic, real-world peak conditions
Better quality = EER2 gives you true peak efficiency, not just theoretical performance.
