Skip to content

5 Zone Mini Split

A 5-zone mini-split system allows you to tailor the temperature to your needs in up to five separate areas. With individual wall units placed strategically throughout your home, you gain maximum comfort control and lower energy costs.

Read more

No longer will the upstairs be too hot while the main floor is too cold. By installing a 5-zone mini split, you make the smart choice for your home and your wallet. Discover how this innovative solution can transform your living spaces into personalized climate zones for an ideal temperature all year round.

What Is a 5-Zone Mini Split HVAC System?

A 5-zone mini-split HVAC system is a ductless heating and cooling solution ideal for homes or small businesses. It provides temperature control for up to 5 separate areas using individual wall-mounted units connected to an outdoor compressor.

  • The system is split into two main components: a condenser located outside the building and wall units installed in the zones you want to heat and cool.
  • The condenser pumps refrigerant to the wall units, which then use fans to distribute the conditioned air.
  • Each zone has its thermostat to set the desired temperature for that area.

How Much Do 5 Zone Mini Splits Cost Per Month?

To determine how much a 5 zone mini-split system will cost to operate each month, there are several factors to consider:

System size

  • The larger the system, the more energy it will consume to operate. A 5-zone system is typically sized to condition at least 1,500 to 3,000 square feet, so operating costs will be higher than a smaller 2 or 3-zone system.

Efficiency rating

  • Choose an Energy Star-rated system with a high Seasonal Energy Efficiency Ratio (SEER) of at least 15 to 20 or higher. The higher the SEER, the less energy the system will use, so monthly costs will be lower. Newer inverter-driven compressors are the most efficient.


  • The more you use the system, the higher your utility bills will be. If you live in a hot or humid climate and run the system frequently in the summer, operating costs will increase significantly. Program the thermostat only to run when needed.

Electricity rates

  • The price you pay for electricity in your area directly impacts operating costs. The national average is 12 cents per kilowatt-hour (kWh). If your rate is higher, monthly costs will also be higher.


  • A properly maintained system operates more efficiently, so schedule annual service calls. Check and replace air filters once a month or as needed to allow for maximum airflow.

How to Install a 5-Zone Ductless Mini Split Air Conditioner

Gather the Necessary Components

  • Before starting the installation, ensure you have all components:
  • Indoor air handling units (one for each zone)
  • Outdoor compressor unit
  • Refrigerant lines (insulated copper tubing to connect indoor and outdoor units)
  • Drain line (for condensation from the indoor units)
  • Thermostat (one for each zone)
  • Electrical wiring and circuit breakers

Select the Installation Locations

  • Choose a spot for the outdoor compressor that meets the manufacturer's guidelines for clearance on all sides, as well as a path for refrigerant and drain lines to each indoor unit. Locate each indoor unit on an exterior wall, preferably in the center of the zone it will serve.

Install the Outdoor Unit

  • Mount the outdoor compressor unit on a concrete pad and secure it in place according to the instructions. Connect the refrigerant lines and wiring, installing service loops to provide slack.

Install the Indoor Units

  • Cut holes in the exterior walls for the refrigerant lines, drain line, and wiring. Mount the indoor units and connect the refrigerant lines, drain lines, and wiring according to the diagrams in the instructions.

Connect Thermostats and Power

  • Attach a thermostat to the wall in each zone and connect the wiring to the corresponding indoor unit. Connect the power wiring to dedicated circuit breakers and test to ensure all units are functioning properly before closing up the walls.

Final Checks and Cleanup

  • Inspect the installation one final time to ensure all connections are secure, then seal and insulate around all penetrations through walls. Power on the units and test in heating and cooling modes to verify proper operation in each zone. Your new 5-zone ductless mini split system is now ready for service!

How Do 5 Zone Mini Splits Work for Different Climate Zones?

Heating and Cooling Options

  • 5 zone mini splits give you multiple options for heating and cooling. Choose a model with a heat pump to provide both heating and air conditioning, select a cooling-only unit, or opt for a unit with supplemental heating for extra cold days. With 5 individually controlled zones, you can heat some areas of your home while cooling others.

Maximizing Energy Efficiency

  • Because each zone has its thermostat, 5 zone mini splits minimize energy usage by only conditioning occupied spaces. They are significantly more efficient than central HVAC systems that heat or cool the whole house. Their inverter technology allows the system to adjust power usage based on the current temperature and desired set point for optimal efficiency.

Ideal for Various Climate Zones

  • Homeowners in warmer southern climates can benefit from 5-zone mini splits that provide cold air conditioning to different zones.
  • Those in colder northern areas may opt for units with high-powered heat pumps to heat their home efficiently.
  • Temperate coastal and midwestern regions could use systems for supplemental heating and cooling as needed.

Flexibility and Convenience

  • With 5 zone mini splits, you have the flexibility to group zones however you like and the convenience of controlling each zone's temperature separately. This allows you to maximize comfort in the areas of your home you use the most. Their compact, ductless design makes 5-zone mini splits an ideal solution when installing or retrofitting central HVAC is not possible. Enjoy the luxury of precision temperature control in up to 5 zones with a mini split's space-saving build.

What Size 5 Zone Mini Split Do I Need for My Home?

When determining the appropriate size of a 5-zone mini split for your home, there are
several factors to consider.

Square Footage

  • The size of your home, measured in square feet, is the most important factor in choosing a mini split size. For a small home under 1,000 square feet, a 9,000 to 12,000 BTU unit should work well for heating and cooling 5 zones. A medium-sized home of 1,000 to 2,000 square feet would require an 18,000 to 24,000 BTU mini split. For larger homes over 2,000 square feet, consider a mini-split with 30,000 BTUs or more to effectively heat and cool all 5 zones.

Insulation and Windows

  • The level of insulation and number of windows in your home also impacts the size of the mini split needed. Well-insulated homes with newer, energy-efficient windows can use a smaller unit. Homes with little insulation and many windows will require a larger mini-split to compensate for heat and cooling loss. Additional insulation and window upgrades can improve your home’s efficiency and allow you to size down to a smaller mini split.

Location and Climate

  • The climate you live in and the location of your home must be considered. Colder climates will need a more powerful unit to heat zones, while warmer climates can use a smaller unit primarily for cooling. The positioning and layout of your home also matter. A multi-story home may require a more powerful mini split to pump refrigerant a greater distance, while a sprawling single-story home with separated zones will need adequate BTUs to heat and cool distant areas.

Take Advantage of the Benefits of a 5-Zone Mini Split System

As you can see, installing a 5-zone mini split system can provide significant benefits for efficient heating and cooling of your home. While the upfront costs can be higher than a single zone system, the energy savings and enhanced comfort over the lifetime of the system make it a smart investment for many homeowners. A multi-zone mini-split system is an innovative solution that provides an affordable, energy-efficient alternative to a central HVAC system. After installation, you'll enjoy precision temperature control, improved air quality, and lower energy costs for years to come.

Contact The Trade Table!

Contact The Trade Table!

Get questions answered about our 5 Zone Mini Split collection