If you are looking at purchasing or have recently purchased a mini-split system, you may be wondering if they are gas or electric.

Mini-split air conditioners, also known as ductless mini-split heat pumps or heat pumps, operate on electricity alone. This distinguishes them from furnaces that operate on natural gas, propane, or oil.

In this article, we’ll go into the finer details of how mini-split systems are powered, how the indoor and outdoor units differ, and what makes them so efficient.

How are Mini Splits Powered?

A mini-split system consists of two parts: an outdoor compressor/condenser and an indoor air-handling unit.

A conduit, which houses the power cable, refrigerant tubing, suction tubing, and a drain line, links the outdoor and indoor units.

The two units are connected by refrigerant pipes. A refrigerant is used as the medium to absorb heat from the ambient air at the outdoor unit and transfer the heat into the house at the indoor unit.

Related: The Advantages and Disadvantages Of Mini-Split Systems

The Indoor Unit

The indoor unit’s electrical terminal is where the power supply wires are attached. The hot condenser coil is circulated by a fan blower, which requires electricity.

A swing motor that turns with the help of an electric motor is used to change airflow direction.

Everything is managed by a control board that requires electricity to function, in addition to a remote control that needs batteries.

The outdoor unit

The refrigerant that circulates through the evaporator coil is expanded by an expansion valve in the outdoor unit, which cools the evaporator coil.

An axial fan that requires electricity to function will move ambient air across the evaporator coil so that heat may be absorbed by the refrigerant.

After that, a compressor using the most energy is in charge of pressurizing the refrigerant so that it can be transferred into the indoor unit.

A second fan will also operate in the outdoor unit to remove heat from the condenser coil.

How Efficient are Mini Split Systems?

While a lot of electricity is required to power mini-split systems, they are designed to be very efficient.

For one, the heat pump technology used in mini-split systems is more efficient than other heating methods.

The compressor only has to work when it is needed, which also helps to save energy. Additionally, the fact that mini-split systems do not require ductwork helps to make them more energy-efficient.


Do mini splits use freon?

Yes, mini splits use freon as the refrigerant. Your HVAC system’s refrigerant should last at least 15 years, or as long as the unit itself. If your equipment has a leak, an HVAC specialist may need to replenish the refrigerant in your mini-split after repairs are completed.

What is the SEER of a mini-split?

The Seasonal Energy Efficiency Ratio, often known as SEER, is the primary indicator of ductless mini-split efficiency. The total British Thermal Units (BTUs) of heat removed from the air by the air conditioner are divided by the amount of energy consumed by it to do so, measured in watts per hour.

Do mini splits have a condensate pump?

A surface-mounted condensate pump is attached directly to the bottom of the mini-split unit, making maintenance easier. The pump and reservoir are housed in a tiny, readily accessible box on the exterior of the device.

How energy efficient are ductless mini-splits?

Ductless mini-split systems are very energy efficient. In fact, they are some of the most energy-efficient HVAC systems on the market. Some models have a SEER rating of up to 34.

Is a gas furnace or electric furnace more energy efficient?

Electric furnaces are more energy-efficient than gas furnaces. Gas furnaces have an efficiency rating of around 70-80%, while electric furnaces have an efficiency rating of around 90-95%. Additionally, electric furnaces do not produce any harmful emissions, while gas furnaces do.

About the Author

Passionate about helping households transition to sustainable energy with helpful information and resources.

{"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}