
Ducted AC units are a popular choice for many homeowners, but like any other system, they have their benefits and drawbacks.
They can provide a consistent and even cooling throughout your entire home, thanks to a network of ducts that distribute the cooled air.
One of the main benefits of ducted AC units is their ability to be zoned, allowing you to control the temperature in different areas of your home.
This feature can help you save energy and money by only cooling the rooms that need it.
Ducted AC units are also relatively quiet, especially when compared to window units or portable air conditioners.
However, they can be more expensive to install and maintain than other types of AC units.
Their ductwork can also be prone to leaks and damage, which can reduce their overall efficiency.
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What is a Ducted AC Unit?
A ducted AC unit is a type of air conditioning system that distributes cool air throughout a space through a network of ducts.
It's more common on Class A motorhomes and high-end fifth wheels, providing a higher-end AC experience. This type of system is particularly desirable for larger rigs.
Ducted AC units can be fully ducted or partially ducted, with partially ducted systems using the "Chill Grill" area to pull in return air.
A fully concealed system, a ducted split system provides clean and minimalist appeal by hiding the outdoor condenser and indoor air handler within ceilings or crawl spaces.
Packaged systems, on the other hand, consolidate all major components into a single unit, making them ideal for homes with limited indoor space.
This type of system can effectively cool larger homes with ease, pulling air from the home into the unit where it's conditioned, then sending it back into the home through the ductwork.
Ducted AC units can be found in various sizes, from 0-25,000 BTUs to 25,001-40,000 BTUs and even 40,001+ BTUs.
A partially ducted system, like our own Outdoors RV travel trailer, allows for cold air to be directed out through the ducts or from the "Chill Grill" right under the rooftop unit.
Related reading: Ducted Air Con Unit
Who Uses and Where Do They Work Best?
Ducted split systems are a popular choice for many homeowners, especially when building or remodeling a home. They're ideal for multi-room coverage, allowing you to condition air in every room from one centralized unit.
If you have an open-concept space, ducted split systems are a great option. They distribute air evenly, making them perfect for large, open areas.
One of the biggest advantages of ducted split systems is their quiet operation. If you're noise-sensitive, you'll appreciate the fact that they can cut out annoying background noise.
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Benefits and Drawbacks
A ducted AC unit can be a great choice for many homeowners, but it's essential to consider both the benefits and drawbacks before making a decision.
One of the main benefits of a ducted AC unit is that it provides whole-home coverage, ensuring a consistent climate in every room. This can be especially beneficial for larger homes or homes with multiple levels.
Here are some of the key benefits and drawbacks of a ducted AC unit:
While a ducted AC unit may require more installation costs and maintenance, it can also provide a more energy-efficient and quieter operation compared to non-ducted systems.
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Types of Conditioning

Ducted Split systems are connected to a central packaged air conditioner through exterior walls or roofs, allowing for a more traditional air conditioning experience.
A ducted RV AC system is considered higher-end because it distributes cool air throughout the entire RV, making it particularly desirable for larger rigs.
This type of system is more common on Class A motorhomes and high-end fifth wheels, and it's like having central air conditioning in a traditional home.
With a ducted RV AC system, the cooled air is blown into ducts that run throughout the RV, distributing the air more evenly and completely.
Non-ducted RV AC systems, on the other hand, blow cool air directly into the RV through a single large outlet, which can be less effective.
A system can be fully ducted, with both output and return air ducted, or partially ducted, where only the outlet air is ducted but the return air is drawn in through a vent or grill.
Our own travel trailer has a partially-ducted system, which can direct cold air out through the ducts or from the "Chill Grill" right under the rooftop unit.
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Pros and Cons

Ducted systems offer many benefits, but they also have some drawbacks to consider.
One of the main advantages of ducted systems is that they can control the temperature throughout the entire home, ensuring a consistent climate in every room.
Higher installation costs are a significant disadvantage of ducted systems, as they require extensive ductwork throughout your home, making them very labor-intensive and expensive to install.
Ducted systems can be more energy-efficient when cooling or heating multiple rooms simultaneously compared to multiple ductless units.
However, ducted systems can be less flexible in temperature control, as they can't match the individual room control offered by ductless units.
Ducted systems are often quieter in operation, as the noisier components like the compressor and condenser are located outside.
On the other hand, ducted systems can be more complex and therefore more expensive to install and maintain.
Here are some of the key pros and cons of ducted systems:
Ultimately, the decision to install a ducted system depends on your specific needs and preferences.
How it Works
Ducted AC units use the same air source heat pump technology as other systems, operating on the same principles with just a few differences.
These systems work by absorbing ambient thermal energy from the air with an outdoor unit and transferring it to the indoor unit to be released when heating, and vice versa to cool down the home.
You'll still need an outdoor unit with a ducted AC system, but it can often look nicer and less intrusive since you won't need an indoor unit in every single room of your house.
The indoor unit will be concealed, eliminating the need for a separate unit in each room.
For your interest: Clean Room Hvac System
AC vs. DC
AC units use alternating current (AC), which is a type of electrical current that reverses direction 50-60 times per second.
In contrast, DC units use direct current (DC), which flows in one direction only. DC is typically used in smaller applications like computers and smartphones.
AC units are more efficient for cooling large spaces because they can be easily scaled up to handle higher power requirements. This is why ducted AC units are often preferred for homes and commercial buildings.
The alternating current used in AC units also allows for easier transmission over long distances, reducing energy loss and increasing efficiency.
Conditioning System Drawbacks
Ducted AC units aren't perfect, and they come with some drawbacks to consider. Higher installation costs are one of the main cons, as extensive ductwork is required to connect multiple rooms, making it a labor-intensive and expensive process.
Regular AC maintenance service is also a challenge, as you'll need to reach the ductwork within your walls if the unit isn't working properly. This can be costly and time-consuming.
Ducted AC units can be more complex and expensive to install, which may be a drawback for some homeowners. Airflow can also be reduced due to increased restrictions imposed by ducting.
Here are some of the main drawbacks of ducted AC units:
- Higher installation costs
- Maintenance can be challenging and costly
While ducted AC units can offer improved air distribution through the ducts, they may not be the best choice for every homeowner.
Frequently Asked Questions
How much does a ducted AC unit cost?
The cost of a ducted AC unit varies from $6,000 to $25,000, depending on the size and complexity of your home. For a more accurate estimate, consider factors such as home size, number of bedrooms, and multi-storey requirements.
What is the difference between central AC and ducted AC?
Central AC and ducted AC share similarities, but central AC typically requires less ductwork alterations, while ducted AC may need some adjustments for optimal performance. Understanding the differences can help you choose the best cooling solution for your home.
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