When it comes to heating and cooling your home, there are two main types of systems available – HVAC split systems and duct-free systems. Both systems work in different ways, and each has its own advantages and disadvantages. In this article, we’ll explore the differences between HVAC split systems and duct-free systems, so you can make an informed decision about which one is right for your home.

Overview of HVAC Split Systems

An HVAC split system consists of two main components – an outdoor unit that contains the compressor, and an indoor unit that contains the evaporator coil. The two units are connected by refrigerant lines, which transfer the refrigerant between the two units. The indoor unit is typically installed in a central location in your home, and the outdoor unit is installed outside, usually on the ground or on a rooftop.

How HVAC Split Systems Work

The HVAC split system works by using a refrigerant to transfer heat from inside your home to the outside. The indoor unit contains the evaporator coil, which absorbs heat from the air inside your home. The refrigerant then carries the heat to the outdoor unit, where it is released into the air outside.

Advantages of HVAC Split Systems

• Energy efficient – HVAC split systems are generally more energy efficient than other types of heating and cooling systems, such as window air conditioning units.
• Cost effective – HVAC split systems can be more cost effective than other types of systems, particularly if you have an existing duct system in place.
• Good for larger homes – HVAC split systems can be a good choice for larger homes, as they are capable of heating and cooling larger areas.

Disadvantages of HVAC Split Systems

• Requires ducts – HVAC split systems require ducts to distribute the heated or cooled air throughout your home. If you don’t already have ducts in place, installation can be expensive.
• Can be noisy – The outdoor unit of an HVAC split system can be noisy, particularly if it is located close to your home or a neighbor’s home.
• Requires regular maintenance – HVAC split systems require regular maintenance to ensure they are operating efficiently.

Overview of Duct-Free Systems

Duct-free systems, also known as mini-split systems, consist of an outdoor unit and one or more indoor units. The indoor units are mounted on the wall or ceiling and are connected to the outdoor unit by refrigerant lines.

How Duct-Free Systems Work

Duct-free systems work in a similar way to HVAC split systems, using a refrigerant to transfer heat from inside your home to the outside. However, instead of using ducts to distribute the heated or cooled air throughout your home, duct-free systems use individual air handlers in each room.

Advantages of Duct-Free Systems

• No ducts required – Duct-free systems don’t require ducts, which can be an advantage if you don’t have an existing duct system in place or if you don’t want to install ducts.
• Energy efficient – Duct-free systems are generally more energy efficient than window air conditioning units or other types of heating and cooling systems.
• Good for smaller homes – Duct-free systems can be a good choice for smaller homes or for homes with limited space for ducts.

Disadvantages of Duct-Free Systems

• Expensive to install – Duct-free systems can be more expensive to install than HVAC split systems or other types of heating and cooling systems.
• Not as effective in extreme temperatures – Duct-free systems may not be as effective in extreme temperatures, such as during a heat wave or a cold snap.
• May require more maintenance – Duct-free systems may require more maintenance than HVAC split systems, as each indoor unit requires its own filter and cleaning.