How Does Ductless Heating and Cooling work?

Should I get rid of my ducts?

What is the purpose of ducts?

If you are remodeling your home to include an addition or converting a garage or attic into livable space, then you may want to consider a ductless HVAC system. 

Your HVAC system probably includes ducts running through your walls. These ducts work well to keep your home cool or warm, but replacing them or adding more to your home is going to be expensive and take a lot of work. Ductwork construction can take weeks since it is such an involved process taking place within your walls. 

But what if you didn’t need to install more ducts for your home’s addition? Rather than spending a lot of time and money tearing down walls and replacing them to include new ductwork, you can simply install a single ductless unit in each new room. 

You can choose to install a single unit in each new room, or you can choose to forego the ducts entirely and install a unit in every room of your house.  

There are many reasons to consider having a ductless HVAC system in your home. Here are some of the pros and cons of a ductless system:


  • Energy efficient
  • Saves on power bills
  • Allows different temps in different rooms
  • No need for large ducts
  • Short installation time


  • Upfront cost
  • Maintenance

Your ductless HVAC system will be energy efficient. Rather than wasting lots of energy starting up a giant HVAC unit and dispelling the cool or warm air to each room of the house, your ductless system takes very little energy to start up. You won’t be losing energy as air moves through the ducts either. In fact, with a ductless HVAC unit, you can save up to 30% more energy than a traditional HVAC system. 

Because your ductless unit uses less power, you will save money on your power bill. If you have high power bills and are looking for a way to reduce them, then getting a ductless HVAC system will help with that. 

Is someone in your house always cold no matter the temperature? Is someone always too warm? If the people in your home fight over the thermostat because they like having different temperatures, then a ductless HVAC system can fix that. If you decide to have your whole house go ductless, then there will be a unit in each room that can be customized to the occupant’s needs. No more silent wars over the thermostat settings. Everyone will be happy when you have a ductless HVAC system. 

Having a ductless system eliminates the need for large ducts. Ducts take up a lot of space within your walls and ceiling. With ductless, there will be a small unit in each room. You will no longer need ducts to stay at a good temperature. 

Ductwork takes a long time to install. A professional has to get into your walls to install ductwork, which is a big hassle. Ductless systems are quick and easy to install. It will probably only take a few hours to install each unit, so your entire house can be completed in just a day or two. You should still hire a professional to install your ductless system because there are some very specific things that need to be done in order to get the full benefit of your new ductless heating and air conditioning. 

On the opposite side, there are some cons to ductless systems that you should be aware of. 

The upfront cost of a ductless system will probably be much higher than that of a traditional HVAC system. You may end up spending close to a thousand dollars on your ductless unit. However, this higher cost is outweighed by the fact that you will be saving money on your ductless system because it uses less power. Over time, you will earn the money you spent back through lower power bills. 

Another con, although really not a big deal, is that ductless systems do take some maintenance. Any HVAC system will take maintenance and require repairs and inspections, so ductless really isn’t very different. The main difference is that you will need to wash or change the filter in your ductless unit more frequently than you would for a traditional system. You may need to change the air filter monthly, depending on how much use your system is getting and the quality of air in your home. If you are a smoker, then you will need to change the filters more often. In addition to that, you should get your ductless system inspected annually to be sure that everything is running smoothly.

One of the biggest benefits of a partial ductless HVAC system is that you can pick and choose where it goes. If you are adding on to your home or transforming the garage or attic into a livable area, then having a ductless unit in just those rooms will be much cheaper and easier than expanding the ductwork in your home to include these rooms. 

If you install one ductless unit, it can act as a sort of test run. If you love your ductless unit and enjoy the freedom it gives you over that one room, then you may decide to install ductless units in all the rooms of your home and stop using your ducts. If you don’t particularly like your ductless unit, although chances are you will, then there will be no pressure to install more units since you still have your traditional duct system. 

The pros of a ductless system far outweigh the cons. If you are remodeling, upgrading your current system, want to be more energy-efficient, or just want a change, then consider installing a ductless HVAC system today. You will love your new system. Ductless systems give you more control over your temperature and can be customized to each specific room. No more fighting over the thermostat or passive-aggressively changing the temperature so you’re happy. If you get a ductless HVAC system, you won’t regret it.