Until recently, any house without ductwork (”ductless”) could not have central air conditioning. If you had forced hot water heating or electric heat, for example, your only options were to use noisy, highly inefficient, and expensive window air conditioners in each and every room you wanted to cool. This was as expensive as it was unsightly.
Now, the invention of ductless air conditioning systems provides everyone, regardless of how old your house is or how it is currently heated, the opportunity to get a central air conditioning. These systems are quiet, simple to use, energy efficient, and quick and easy to install. They can even be “zoned” to cool only parts of your house at a time.
The system consists of just three parts:
1. Quiet indoor air-distribution units
2. Hidden refrigeration lines that link this/these units to…
3. …an outdoor compressor/condenser.
The only visible parts to the ductless system inside the house are small 1-3 inch in diameter holes where the distribution units are mounted. Ductless systems are actually much less visible that almost any other kind of heating or cooling system.
You do not have to change any existing ductwork, or anything about how you currently heat your house to get a ductless air conditioning system.
Advantages of ductless air conditioning systems:
1. Central air increases the resale value of your house, and in some areas is close to required to get any buyer interest
2. They are very small; in fact they are practically invisible.
3. Ductless air conditioning systems are easy to install, and the technology has made it so that the systems can be installed with little or no disruption to existing walls and facades.
4. These systems have flexible types of installation – you can choose floor, ceiling, and/or wall-mounted units depending on what will be least visible and disruptive to your existing decor
5. They can be “zoned” to individually cool specific rooms or groups of rooms, further reducing the cost and wastefulness, especially as compared to window units.
Even in some homes that are heated with forced air, the ductless air conditioning system may be optimal because it will save the energy that is currently lost as air travels through the ductwork (think of cooled air passing through a duct in a super-hot attic, or hot air through a cold basement).
More and more you will see window units disappearing from homes like yours…look into the opportunity to use ductless central air conditioning yourself!
By: Alan Jacobson
Many older homes were built pre-central heat and air. This is a luxury that many of us have to enjoy and when moving into an older we find that this luxury is also a necessity. We tend to lose tolerance for heat as we grow older and those old window air conditioning units just look tacky. However, the whole idea of having to add ducts to a home can sound difficult and expensive, but it is easier than you might think.
Central heat and air uses a primary heating appliance such as a furnace that is often located in an area such as a small closet, basement or garage. These systems deliver heat throughout the house through pumped warm air through a system of air ducts or by sending hot water or steam through pipes to room radiators. In newer homes, the system is usually built in with the home. The duct system may be set up with an air conditioner, heat pump, or furnace. There are also two types of systems including a forced air system and a gravity system. Gravity systems, however, do not provide air conditioning and can only provide heat. If your system includes an air conditioner, then the system is a forced-air system.
Air conditioners and heat pumps are forced air systems that share ductwork. The air conditioner runs on electricity and removes heat from air through refrigeration. The heat pump is capable of providing both heating and cooling. In the winter, the heat pump extracts the heat from outside air and delivers it into the home. In the summer it does the opposite. It extracts the cool air and pumps it into the home. These systems tend to be very economical and use only one duct system.
Many central air conditioners are split systems with a condenser outside and the fan and coil unit mounted in the attic. This means that the ducts will originate in the attics. The challenge here is if the home is two stories. It can be difficult to get the supply and return ducts to the first floor. The second floor will generally have ducts that run through the attic floor, while the first floor will need to have ducts run through closets. This takes up less space than some may think and the mess can be minimal. The contractor will need to cut holes in the first and second floor ceilings and some second floor closets will need to be used for running ducts.
This work will be well worth it in the long run when your home is kept cool in the summer and warm in the winter. If you have an older home, especially one with two stories, it can be difficult to spend anytime upstairs during the summer. The upstairs rooms will hold a large amount of heat and will definitely benefit from central heat and air. In the winter it is often difficult to keep first floors warm because the heat rises. Central heat will make your first floor rooms much more comfortable.
By: Christopher Brown