Tuckers Air Conditioning, Heating & Plumbing Blog: Archive for May, 2012

Window Units vs. Ductless Splits for Air Conditioning

Tuesday, May 29th, 2012

If you cannot afford or do not have duct work to support a central air conditioning system, there are two options – window units or ductless units. But, which is better? It depends largely on your budget, whether you rent or own and if there are any risks inherent in either choice.

Window Units

First let’s look at window units. Window units are the least expensive form of air conditioning on the market and don’t require any work on your home to install. They are good for single rooms and smaller apartments as well, and they can usually be installed by one or two people without professional assistance.

The downside of a window unit is that it cannot cool your entire home, even in an apartment. Also, window units tend to block an entire window and they pose a security risk, especially on the first floor. They are easy to remove from the outside and therefore should only be used in extreme circumstances if the window is easy to access.

Ductless Systems

Ductless systems offer benefits that counter all of the downsides of a window unit. Specifically, they don’t block the windows and are mounted inside on the walls. They are also more efficient than window units, using 30% less energy on average than a comparable window unit. They can be sized to cool your entire home and they still don’t use ductwork so extreme installation methods are not needed.

However, a ductless system costs more than a window unit. They are more efficient, quieter, and less obtrusive, but they require a professional installation. Another issue to consider is whether you rent or own your home. Renters may not be permitted to have a system installed like this as it takes up more space and requires some work that could alter the building.

Which Is Better?

So, which should you choose? It depends on the specific needs of your home. If you have two or more zones to cool and can want to have a ductless system installed, it is a great long term solution. To learn more about how a ductless AC system would work in your home, call Bethesda HVAC contractor Tuckers Air Conditioning & Heating at 301-670-0034!

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Ductless vs. Duct Air Conditioning Systems

Monday, May 21st, 2012

When it comes time to pick out a new air conditioning system in Bethesda, you will have to make the choice between ductless and duct models. While both of these types of systems have their advantages, the specifics of your situation will go a long way to determining which one is right for you.

Ductless air conditioning systems are becoming more and more popular these days for a number of reasons. For one, they are generally considered more energy efficient than their ducted counterparts. Also, ductless systems are often cheaper and simpler to install, particularly in a house that does not already contain ductwork.

These types of air conditioners use refrigerant lines to connect the indoor unit or units to the outdoor compressor. The refrigerant lines take up much less space than ducts do and they also are much easier to install. Refrigerant lines can also reach into areas of your house that ducts may not be able to, making it possible for you to bring the benefits of air conditioning to places that did not have access to it before.

The indoor unit of a ductless air conditioning system can generally handle the cooling load of one or two rooms, but if you want to cool a larger space, it will be necessary to install multiple indoor units throughout the house. All of these units can connect to the same outdoor compressor and they can also be controlled individually. That means that you can set different temperatures in different parts of your house and you do not have to pay to cool the entire space if no one is occupying certain parts at the moment.

A duct air conditioning system also involves indoor and outdoor components. However, these elements are connected to each other by a system of ducts rather than by refrigerant lines. In a duct system, cooled air is brought inside from the compressor and then circulated through various ducts by the air handler.

The latest duct systems are quite energy efficient as well, and they can also be coupled with zone control systems to create different climate zones within your house. Particularly if you already have some ducts in place, a central air conditioning system can be a great option for you.

For more information about what type of air conditioning system will work best in your home, give Tuckers Air Conditioning & Heating a call today at 301-670-0034!

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What Does an Air Handler Do? An AC Question

Monday, May 14th, 2012

Your HVAC system is a complex system filled with vital components tasked with keeping you comfortable. One of the most important of those component is the air handler – the device responsible for circulating the heated or cooled air produced by your system through the vents in your home and into each of your rooms.

The air handler is a metal box, usually consisting of a blower and the heating or cooling elements. It might also include dampers and sound attenuators along with an air filtration and humidity control system. The simplest air handlers are designed only to transfer the heated or cooled air to the various parts of your home, while the most advanced devices are designed to perfectly condition and clean that air as it is circulated.

 Types of Air Handler

There are a few different types of air handler as well, depending on the size of the HVAC system and the nature of the heating and/or cooling used. Most homes, for example, use terminal units which consist of just an air filter, blower and coil. This very simple system is all you really need to heat and transmit air through your ductwork.

However, for larger systems, there are also makeup air units which use outdoor air instead of recirculated indoor air. There are also packaged and rooftop units which are designed to be placed outside. These devices are most commonly used for commercial applications when space is limited.

How the Air Handler Works

An air handler’s most basic component is a blower fan. This device is run by an AC electric motor and can be either single speed or variable speed depending on the size and scope of your air handler. The dampers on the fan will control the flow rate of the air going through the blower fan. Most residential blowers are part of the air conditioning or furnace system, while commercial systems often have multiple blowers to maintain steady airflow for a larger space.

Because an air handler passes all of the air that will go through your vents, it is the best place to install high quality MERV or HEPA filters to remove pathogens and contaminants. It is also a good place to install humidity control devices to either raise or lower humidity depending on the time of the year.

Your air handler is an incredibly important component in your home heating and cooling system. Without it, all that heated and cooled air you pay for each year wouldn’t reach you. So, make sure to keep your system in tip top condition. If you need any air conditioning service in Gaithersburg, give Tuckers Air Conditioning & Heating a call at 301-670-0034!

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HVAC Question: What is a Matched HVAC System?

Monday, May 7th, 2012

It has been about 200 years since the arrival of interchangeable parts during the Industrial Revolution. Today, we laud being able to take a malfunctioning part from a car, computer or vacuum cleaner, replace it with a newly minted part from any number of manufacturers, then keep right on plugging along.

Although this is a blessing in most arenas, when it comes to the HVAC system in your Silver Spring home, it is not necessarily a good practice. Heating and cooling systems work best when they are matched – but what does that mean? And why does it matter?

Why Matched Parts Matter in HVAC Systems

When referring to HVAC systems, a matched system is one in which various components are designed to work together. For example, an air conditioner and furnace made by the same manufacturer can be matched, as can a furnace and a heat pump.

Typically, the matching is done in such a way that the “outdoor” components, such as air conditioners and heat pumps are designed to work best with their “indoor” partners, like air handlers and furnaces. There are also matched systems in which every component is matched to every other.

Efficiency Boosts

While this may seem to make maintenance and repairs a pain, the practice provides a big boost to the efficiency of the system. Because the components were designed and manufactured by the same team to work in harmony, the system performs optimally. Although you can often replace one component of a matched system with one from another manufacturer and have it work fine, the system can lose efficiency, often to a significant and noticeable extent.

For these reasons, it is best to make use of matched systems in your home whenever possible. This means choosing a new matched system to install, replacing broken parts with ones that match the rest of the system and even replacing older systems with newer ones to properly match, when necessary.

It may seem like a hassle at first, but it saves money in the long run by adding increased efficiency over unmatched systems. For more information about how to keep your HVAC system working at peak efficiency, give Tuckers Air Conditioning & Heating a call at 301-670-0034!

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