Authorized Dealer
4.5 of 323 reviews Verified Reviews

4 Ton Heat Pump & 80K BTU 96% AFUE Gas Furnace System – Dual Fuel – Upflow/Horizontal – High Efficiency Split System

By MRCOOL® SKU MGM96EE080C4NB-MCMP4860COTB-UHP18048-O Refrigerant Type: R-454B
Regular price $5,569.00
Sale price $5,569.00 Regular price $6,905.56
You Save: $1,336.56
SALE Sold out
Key Features At A Glance
In stock
Ready to ship
Free delivery*
Ships based on product type and destination
Estimated arrival: Apr 23 – Apr 25
Based on order date & typical delivery times

4 Ton Dual Fuel HVAC System with 96% AFUE Gas Furnace for High-Efficiency Comfort

This complete 4 ton dual fuel HVAC system combines high-efficiency cooling with advanced heating performance for year-round residential comfort. Featuring a heat pump condenser paired with a 96% AFUE gas furnace and matched A-coil, this system delivers reliable temperature control while helping reduce overall energy costs.

System Includes

  • 4 Ton Heat Pump Condenser
  • 80,000 BTU 96% AFUE Gas Furnace (Upflow / Horizontal Only)
  • 4 Ton Multi-Position Pre-Charged A-Coil

Key Features

  • 4 Ton Cooling Capacity – Designed for larger residential applications
  • 80K BTU High-Efficiency Furnace – Reliable heating with reduced energy consumption
  • 96% AFUE Efficiency – Maximizes heat output while lowering fuel costs
  • Dual Fuel Operation – Combines heat pump efficiency with gas furnace performance
  • Upflow or Horizontal Installation Only – Designed for closets, attics, and mechanical spaces
  • Pre-Charged A-Coil – Simplifies installation and reduces setup time
  • TXV Metering Device – Optimized refrigerant flow for improved system performance
  • Flexible Line Set Compatibility – Works with DIY pre-charged No-Vac line sets or traditional flare and sweat connections
  • Corrosion-Resistant Construction – Built for long-term durability
  • A2L Leak Detection Sensor – Enhanced safety for modern refrigerant systems

Dual Fuel Heating System

This system combines a high-efficiency heat pump with a gas furnace to provide optimal heating performance in all conditions. The heat pump efficiently heats your home during mild temperatures, while the gas furnace automatically takes over in colder weather for reliable, high-output heating.

This dual fuel setup maximizes energy efficiency, reduces operating costs, and ensures consistent comfort throughout the year.

Performance & Efficiency

Designed to deliver consistent indoor comfort, this system balances high-efficiency heating with dependable cooling. The 96% AFUE furnace minimizes fuel usage while the heat pump provides efficient heating and cooling operation across changing seasonal conditions.

Installation & Compatibility

This system is designed for upflow or horizontal installation only and is not compatible with downflow applications. It supports both DIY pre-charged No-Vac line sets for faster installation and traditional flare and sweat connections for professional HVAC setups.

Note: Line sets are sold separately and must be selected based on system size and installation requirements.

Ideal Applications

Ideal for homeowners upgrading to a high-efficiency HVAC system or installing a complete heating and cooling solution in larger residential properties. Suitable for installations where upflow or horizontal configurations are required.

Build a Complete System

This bundled system includes all major indoor and outdoor components required for a complete HVAC installation. Additional accessories such as thermostats, line sets, and installation materials may be required depending on your setup.

No specs provided for this product yet.

No package information available for this product.

Download installation manuals, spec sheets, and warranty documents for this system.

No documents available for this product.

No Q&A content set for this product.

No helpful articles linked for this product.

FAQMRCOOL Dual Fuel Systems

MRCOOL Dual Fuel Heat Pump & Furnace FAQ

Quick answers to common questions about MRCOOL dual fuel heat pump and furnace systems, including sizing, installation, and how the DIY pre-charged system works.

What is a MRCOOL Dual Fuel System?

A MRCOOL Dual Fuel HVAC System combines a high-efficiency heat pump and a gas furnace to provide year-round comfort and maximum energy efficiency.

During mild weather, the heat pump handles heating and cooling, using electricity to efficiently move heat in or out of your home. When temperatures drop and a heat pump becomes less efficient, the system automatically switches to the gas furnace for powerful and reliable heating.

This hybrid approach allows homeowners to enjoy:


  • Energy-efficient heating and cooling

  • Lower energy costs

  • Reliable performance during extreme cold

  • Smart automatic switching between heating sources

MRCOOL dual fuel systems are an excellent option for homeowners who want the efficiency of a heat pump and the dependable heating of a gas furnace.

How do I choose the right size MRCOOL Dual Fuel HVAC system?

Choosing the correct system size is important for both comfort and efficiency. HVAC systems are typically sized in BTUs (British Thermal Units) and are matched to the square footage and insulation characteristics of the home.

General guidelines include:

  • 2 Ton System – typically suited for smaller homes or spaces around 900–1,200 sq ft
  • 3 Ton System – common for homes around 1,200–1,800 sq ft
  • 4 Ton System – used for larger homes around 1,800–2,400 sq ft
  • 5 Ton System – suited for very large homes or open floor plans

However, the correct system size can also depend on factors such as insulation, ceiling height, climate zone, and home layout.

If you're unsure which system is right for your home, our team can help you select the best MRCOOL dual fuel heat pump and furnace system for your application.

Why choose a dual fuel HVAC system instead of a heat pump alone?

A dual fuel HVAC system provides the efficiency of a heat pump while maintaining the powerful heating capability of a gas furnace when temperatures drop.

Heat pumps are extremely efficient in mild and moderate temperatures, but their efficiency decreases as outdoor temperatures get very cold. A dual fuel system solves this by automatically switching to the gas furnace when it becomes more efficient to use gas heat.

This hybrid setup allows homeowners to benefit from:

  • Energy-efficient heating during mild weather
  • Reliable gas heat during extreme cold
  • Lower overall heating costs
  • Automatic switching between heating sources

MRCOOL dual fuel systems combine the advantages of both technologies, providing a balanced heating solution that works efficiently across a wide range of climates.

What makes MRCOOL Dual Fuel Systems different from other systems?

MRCOOL dual fuel systems are unique because the A-coil and condenser can be installed using MRCOOL DIY pre-charged line sets.

These factory-sealed line sets contain the correct refrigerant charge and use quick-connect fittings, allowing the heat pump side of the system to be installed without vacuum pumps, gauges, or refrigerant handling.

This means homeowners can install the entire air conditioning / heat pump portion of the system themselves, saving significant installation costs compared to traditional HVAC systems.

Benefits include:

  • Factory pre-charged A-coil
  • Compatible with MRCOOL DIY quick-connect line sets
  • No refrigerant handling required
  • Much simpler installation compared to traditional systems
How much money can I save by installing the system myself?

Installation costs for traditional HVAC systems can range from $3,000 to $10,000 or more, depending on the complexity of the project.

By using MRCOOL’s pre-charged components and DIY line sets, many homeowners are able to complete much of the installation themselves and significantly reduce installation costs.

Even when a professional is used for certain parts of the installation, homeowners often save hundreds to thousands of dollars compared to a traditional fully installed HVAC system.

Can I use traditional copper line sets instead of MRCOOL DIY pre-charged line sets?

Yes. The MRCOOL pre-charged A-coil is compatible with both:

  • MRCOOL DIY pre-charged line sets
  • Traditional copper line sets

If traditional copper lines are used, the system will need to be vacuumed and charged by an HVAC professional just like a conventional HVAC installation.

DIY line sets are simply an easier option for homeowners who want to simplify installation.

Can I install the MRCOOL dual fuel system myself?

Many homeowners install the heat pump and cooling portion of the system themselves using MRCOOL DIY pre-charged line sets.

These line sets make it possible to install the refrigerant connections without specialized HVAC equipment.

However, when installing or connecting a gas furnace (natural gas or propane), installation requirements can vary depending on local codes and regulations.

In some areas homeowners are allowed to install gas appliances themselves, while other regions may require a licensed professional. For safety and compliance, it’s always recommended to follow local regulations and ensure gas connections are installed properly.

Many homeowners choose a hybrid approach where they complete most of the installation themselves and have a professional verify or complete the gas connections.

What does “pre-charged” line set mean?

A pre-charged HVAC component contains the correct amount of refrigerant from the factory and is sealed inside the equipment.

MRCOOL DIY systems use pre-charged quick-connect fittings that keep refrigerant contained until the connections are made. Once the line set is connected, the valves open and the refrigerant flows into the system automatically.

This eliminates the need for:

  • Vacuum pumps
  • Manifold gauges
  • Refrigerant charging
  • Specialized HVAC tools

It allows the heat pump portion of the system to be installed using a simplified DIY process.

What outdoor units can be paired with the MRCOOL pre-charged A-coil?

The MRCOOL pre-charged A-coil is designed to work with several MRCOOL heat pump systems, including:

  • MRCOOL VersaPro Series – high-efficiency heat pump systems
  • MRCOOL Hyper Heat Series – heating performance down to extremely low outdoor temperatures
  • MRCOOL Universal Series – flexible installation options for many home configurations

These outdoor units can be combined with a high-efficiency gas furnace to create a complete dual fuel HVAC system.

How much does a MRCOOL Dual Fuel heat pump and furnace system cost?

The cost of a MRCOOL dual fuel heat pump and gas furnace system can vary depending on the size of the home, system capacity, and equipment configuration.

In general, MRCOOL dual fuel system bundles typically range between $3,000 and $6,000 for equipment, depending on the size of the system and included components.

Traditional HVAC installations can cost significantly more once labor, refrigerant charging, and installation fees are added. Because MRCOOL dual fuel systems can be installed using DIY pre-charged line sets, many homeowners are able to reduce installation costs substantially.

By completing part of the installation themselves, some homeowners save thousands of dollars compared to traditional HVAC installations.

Energy-Efficient MRCOOL Dual Fuel Heat Pump & Furnace Systems

MRCOOL dual fuel systems combine a high-efficiency heat pump with a gas furnace to provide reliable heating and cooling throughout the year. These hybrid HVAC systems automatically switch between electric heat pump operation and gas heating depending on outdoor temperatures, helping homeowners maximize efficiency and comfort.

High-Efficiency Performance

Industry-Leading Warranty

Fast, Reliable Shipping

Expert Customer Support

Installation Notice: MRCOOL dual fuel systems allow the heat pump portion of the system to be installed using MRCOOL DIY pre-charged line sets. Gas furnace and gas line installation requirements may vary by location, so homeowners should verify local codes and ensure all work is completed safely.

Rated 4.7 / 5 Stars
4700+ Verified Reviews

Comfort That Speaks for Itself

See why homeowners and pros alike trust MRCOOL DIY systems to deliver comfort, savings, and easy installation.

I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!

Jason R., North Carolina

Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency

Megan L., Arizona

Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.

Daniel P., Texas

I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.

Jennifer C., Florida

Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.

Chris B., Ohio

Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!

Angela K., Kentucky

I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.

Brandon S., Tennessee

I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!

Jason R., North Carolina

Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency

Megan L., Arizona

Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.

Daniel P., Texas

I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.

Jennifer C., Florida

Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.

Chris B., Ohio

Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!

Angela K., Kentucky

I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.

Brandon S., Tennessee

I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!

Jason R., North Carolina

Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency

Megan L., Arizona

Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.

Daniel P., Texas

I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.

Jennifer C., Florida

Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.

Chris B., Ohio

Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!

Angela K., Kentucky

I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.

Brandon S., Tennessee

I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!

Jason R., North Carolina

Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency

Megan L., Arizona

Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.

Daniel P., Texas

I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.

Jennifer C., Florida

Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.

Chris B., Ohio

Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!

Angela K., Kentucky

I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.

Brandon S., Tennessee

I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!

Jason R., North Carolina

Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency

Megan L., Arizona

Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.

Daniel P., Texas

I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.

Jennifer C., Florida

Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.

Chris B., Ohio

Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!

Angela K., Kentucky

I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.

Brandon S., Tennessee

I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!

Jason R., North Carolina

Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency

Megan L., Arizona

Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.

Daniel P., Texas

I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.

Jennifer C., Florida

Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.

Chris B., Ohio

Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!

Angela K., Kentucky

I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.

Brandon S., Tennessee

I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!

Jason R., North Carolina

Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency

Megan L., Arizona

Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.

Daniel P., Texas

I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.

Jennifer C., Florida

Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.

Chris B., Ohio

Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!

Angela K., Kentucky

I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.

Brandon S., Tennessee

I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!

Jason R., North Carolina

Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency

Megan L., Arizona

Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.

Daniel P., Texas

I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.

Jennifer C., Florida

Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.

Chris B., Ohio

Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!

Angela K., Kentucky

I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.

Brandon S., Tennessee

I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!

Jason R., North Carolina

Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency

Megan L., Arizona

Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.

Daniel P., Texas

I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.

Jennifer C., Florida

Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.

Chris B., Ohio

Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!

Angela K., Kentucky

I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.

Brandon S., Tennessee

I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!

Jason R., North Carolina

Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency

Megan L., Arizona

Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.

Daniel P., Texas

I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.

Jennifer C., Florida

Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.

Chris B., Ohio

Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!

Angela K., Kentucky

I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.

Brandon S., Tennessee