$12,157.00Original price was: $12,157.00.$11,973.00Current price is: $11,973.00.
4 Ton-Merit Two-Stage System – Complete Home Comfort Bundle
Upgrade your home’s heating and cooling with Temperature Pros’ 4 Ton-Merit Two-Stage System. This complete bundle includes the ML17KC2 two-stage air conditioner, ML180V gas furnace, and CK40HT-71 horizontal evaporator coil, delivering energy-efficient, reliable, and quiet performance all year. With SEER2 16 and EER2 12.2, enjoy lower energy bills without sacrificing comfort. The two-stage AC ensures precise cooling, the variable-speed furnace provides even, consistent warmth, and the durable horizontal coil maximizes efficiency. Safe, future-ready R-454B refrigerant and built-in Refrigerant Detection System (RDS) give you peace of mind. Perfect for homeowners seeking a full, affordable HVAC upgrade.
✅ Mid-efficiency two-stage cooling with SEER2 16 ✅ Quiet, reliable operation for year-round comfort ✅ Energy-efficient 80% AFUE variable-speed furnace ✅ Durable, horizontal evaporator coil with RDS safety system ✅ Complete HVAC bundle for easy installation and lasting performance
4 Ton-Merit Two Stage System Affordable Comfort, Free Installation With Purchase
Upgrade your home’s heating and cooling with the 4 Ton Merit Two-Stage System, a complete HVAC bundle that includes the ML17KC2 two-stage air conditioner, ML180V gas furnace, and CK40HT-71 horizontal evaporator coil. Designed for energy efficiency, reliable performance, and year-round comfort, this bundle is perfect for homeowners seeking an affordable HVAC system with modern features. Enjoy precise temperature control, quiet operation, and safe, sustainable R-454B refrigerant, all at a price that fits your budget.
SEER2: 16
EER2: 12.2
Mid-Efficiency, Two-Stage Cooling
The ML17KC2 air conditioner provides reliable cooling and efficiency. Paired with the furnace and coil, this entire system achieves SEER2 16 and EER2 12.2, delivering lower energy bills and consistent comfort throughout your home. The two-stage compressor ensures even temperatures, while the high-efficiency coil maximizes heat transfer. With quiet operation at 73 dB and durable Quantum™ Coil construction, this AC is ideal for affordable air conditioner replacement and modern residential HVAC upgrades.
Smart, Energy-Saving Heating
The ML180V furnace features an 80% AFUE rating and variable-speed fan motor for even, quiet heating. With dual-fuel capability, it pairs seamlessly with a heat pump to maximize energy efficiency. Built with high-quality steel, this furnace provides long-lasting durability and is perfect for affordable furnace installation and residential heating upgrades.
Reliable Horizontal Coil
The CK40HT-71 horizontal evaporator coil completes your system with efficient, safe cooling performance. Factory-installed TXV and RDS sensor ensure optimized airflow, safe refrigerant handling, and code compliance. Its braze-free installation makes setup quick and flexible, ideal for affordable HVAC bundles. Durable aluminum casing and UV-resistant drain pan ensure long-term reliability.
Why Choose This 4 Ton-Merit Two Stage System HVAC Bundle?
This full 4 Ton Merit Two-Stage System simplifies home comfort with energy-efficient components, quiet operation, and durable construction. Enjoy affordable HVAC installation, free installation offers, and a future-ready system that meets 2025 refrigerant standards. Perfect for home HVAC upgrades, AC and furnace replacement, or affordable heating and cooling solutions.
Key Benefits
✅ Complete 4 Ton HVAC bundle: AC, furnace, and horizontal coil ✅ SEER2 16 / EER2 12.2 for energy-efficient, cost-saving performance ✅ Mid-efficiency two-stage AC for even, quiet cooling ✅ 80% AFUE furnace with variable-speed fan for consistent heating ✅ Horizontal evaporator coil with built-in RDS sensor and TXV ✅ Durable construction for long-lasting reliability ✅ Braze-free installation for fast, flexible setup ✅ Ideal for affordable HVAC bundles and free-installation promotions
Air Conditioner Overview
Model #: ML17KC2-048
Product Overview
Merit® Series | ML17KC2 Air Conditioner – Mid-Efficiency, Two-Stage Cooling for Year-Round Comfort
Upgrade your home’s climate control with the Lennox® ML17KC2 two-stage air conditioner, a mid-efficiency system designed to deliver reliable, energy-efficient cooling. Compatible with 2025 R-454B refrigerant, this unit ensures consistent comfort, reduced energy costs, and quieter operation. Ideal for homeowners looking for a central air conditioning system, AC replacement, or a home HVAC upgrade, the ML17KC2 combines performance, durability, and sustainability.
Energy Efficiency & Performance
Up to 17.00 SEER2 rating for lower energy bills and improved efficiency
ENERGY STAR® Certified — meets or exceeds EPA guidelines for energy-efficient operation
High-efficiency outdoor coil maximizes heat transfer with minimal air resistance
Two-stage compressor provides precise cooling, maintaining even temperatures while reducing energy usage
Quiet & Comfortable Operation
Operates at sound levels as low as 73 dB, ensuring a peaceful home environment
Direct-drive, precision-balanced outdoor fan reduces noise while enhancing system durability
Ideal for homeowners seeking quiet central AC systems or residential HVAC comfort solutions
Craftsmanship & Reliability
Quantum™ Coil constructed from durable aluminum alloy to withstand extreme weather
Heavy-gauge galvanized steel cabinet with louver coil guard, baked-on powder finish, and zinc-coated base for long-lasting protection
Braze-free installation compatible with 2025 compliant systems for flexible HVAC setup
Built-in drainage holes prevent moisture buildup and protect the system
Safety & Sustainability
Uses R-454B low-GWP refrigerant, compliant with 2025 EPA standards
Refrigerant Detection System (RDS) monitors for leaks, stops operation, and activates the indoor blower to safely disperse refrigerant
Fully compliant with A2L mildly flammable refrigerant safety standards
Key Benefits at a Glance
✅ Mid-efficiency, two-stage air conditioner for central AC replacement ✅ Up to 17.00 SEER2 with ENERGY STAR® certification ✅ Quiet operation at sound levels as low as 73 dB ✅ Durable Quantum™ Coil built for extreme conditions ✅ Braze-free installation for flexible modern HVAC systems ✅ Built-in RDS sensor for enhanced safety ✅ High-efficiency outdoor coil for optimized heat transfer
Product Specifications:
Brand
Lennox
Catalog Number
25U64
Model/Part Number
ML17KC2-048-230
Base Unit of Measure
Unit(S)
Family
ML17KC2
Series
Merit
Type
Two-stage Air Conditioner
Nominal Cooling Capacity
4 Ton
Product Voltage
208-230 VAC 1 Ph 60Hz
Product Depth
28.25 Inch
Product Width
28.25 Inch
Product Height
29.25 Inch
Compressor Type
2 Stage
Number of Compressors
1 Compressor
SEER2
Up to 17.00 SEER2
EER2
Up to 12.50 EER2
Gross Weight
206 Lbs.
Liquid Line OD
3/8 Inch
Suction Line OD
3/4 Inch
Energy Star Certified
Yes
Refrigerant Type
R-454B
Furnace Overview
Model #: ML180UH110V60C
Order #: 17Y76
Product Overview
Merit® Series | ML180V Gas Furnace – Single-Stage, 80% AFUE Heating with Variable-Speed Fan Motor
The Lennox® ML180V gas furnace delivers reliable home heating with precise temperature control and energy-efficient operation. Its variable-speed fan motor reduces hot and cold spots, improves humidity management, and optimizes energy use. Built with high-quality steel and dual-fuel capability, this furnace provides long-lasting durability and adaptable heating solutions for year-round comfort. Ideal for furnace replacement, home heating upgrades, and residential HVAC systems.
Energy Efficiency & Performance
80% AFUE efficiency rating provides consistent home heating while lowering energy bills
Variable-speed fan motor adjusts airflow for even temperatures and improved energy efficiency
Dual-fuel operation allows pairing with a Lennox® heat pump, automatically switching between gas and electricity for maximum savings
Designed for smart, energy-efficient home heating without compromising comfort
Quiet & Comfortable Operation
Variable-speed fan ensures smooth, quiet airflow throughout the home
Maintains even heat distribution to reduce hot and cold spots
Ideal for homeowners seeking quiet, reliable heating systems or energy-efficient furnaces
Craftsmanship & Reliability
High-quality steel construction ensures long-lasting durability
Tested to provide dependable performance under various conditions
Built to meet Lennox standards for residential HVAC systems and home furnace solutions
Safety & Sustainability
Meets all industry safety standards for secure furnace operation
Dual-fuel capability supports energy savings and environmentally responsible heating
Helps reduce your carbon footprint while providing efficient home heating
Complete Comfort System Option
Pair the ML180V furnace with a compatible Lennox® air conditioner or heat pump to create a full central HVAC system, delivering reliable heating and cooling performance year-round. Perfect for homeowners upgrading furnaces, home HVAC systems, or energy-efficient heating solutions.
Key Benefits at a Glance
✅ Single-stage, 80% AFUE gas furnace with variable-speed fan motor ✅ Dual-fuel capable for pairing with Lennox heat pumps ✅ Precise temperature control and improved humidity management ✅ High-quality steel construction for long-lasting durability ✅ Quiet, consistent operation for enhanced home heating comfort ✅ Bundle option available with AC or heat pump for a complete residential HVAC system
Product Specifications:
Brand
Lennox
Catalog Number
17Y76
Model/Part Number
ML180UH110V60C
Base Unit of Measure
Unit(S)
Family
ML180V
Series
Merit
Heating Capacity
110000 Btuh
Heating Efficiency
80% AFUE
Configuration
Upflow/Horizontal
Blower Size
5 Ton
Gas Stages
1 Stage Heat
Blower Type
Variable Speed
Product Voltage
115 VAC 1 Ph 60 Hz
Product Depth
27.75 Inch
Product Width
21 Inch
Product Height
33 Inch
Gross Weight
149 lbs.
Type
1-Stage Variable Speed 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.
Horizontal Coil Overview
Model #: CK40HT-51/61C-71
Order #: 25V17
Product Overview
CK40HT-71 Indoor Evaporator Coil – Horizontal, Full-Cased R-454B Dedicated Model
The Lennox® CK40HT-71 horizontal evaporator coil delivers efficient and reliable cooling for your home or business. Designed for R-454B refrigerant, this full-cased horizontal coil pairs seamlessly with Lennox air conditioners and heat pumps. With factory-installed components including a thermostatic expansion valve (TXV) and Refrigerant Detection System (RDS), the CK40HT-71 supports modern HVAC systems and ensures safe, code-compliant operation.
Perfect for affordable HVAC bundles or horizontal coil replacement, this coil also offers braze-free installation, making it easy to add to your free-installation HVAC package.
Applications
Supports 1.5- to 5-ton capacities, ideal for residential and commercial HVAC systems
Factory-installed R-454B TXV optimizes cooling efficiency and airflow
Built-in RDS sensor with A2L refrigerant labeling for added safety
Includes RDS line set sleeve for straightforward installation
Compatible with air conditioners, heat pumps, and full HVAC units
Perfect for affordable bundle upgrades with free installation offers
Coil Construction & Reliability
Supports braze-free installation, saving time and adding flexibility for new or replacement HVAC systems
Sleeved distributor tubes and rifled aluminum tubing enhance coil durability
Large coil surface area maximizes heat transfer for efficient performance
Non-corrosive, UV-resistant polymer drain pan with dual connections prevents leaks and extends lifespan
Minimal air resistance improves airflow, ensuring quiet and efficient operation
Manufacturer Cross-Reference
Compatible with leading brands: Goodman CHPT, Daikin CHPT, Franklin CHPT, Amana CHPT
Key Benefits at a Glance
✅ Horizontal, full-cased evaporator coil dedicated to R-454B refrigerant ✅ Factory-installed TXV ensures highly efficient operation ✅ Built-in RDS sensor with flush sequence for safe performance ✅ Flexible braze-free installation compatible with modern HVAC systems ✅ Durable construction with rifled aluminum tubing and sleeved distributor tubes ✅ Non-corrosive, UV-resistant polymer drain pan with dual connections ✅ Ideal for affordable HVAC bundles and free-installation promotions ✅ 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.
