Carney All Seasons Blog: Archive for the ‘Air Conditioning’ Category

Freon and Load Capacity – How Are They Linked?

Wednesday, May 25th, 2011

If you’re like most people, you probably don’t think too much about how your air conditioning system works. All you really need to know is that when you switch on the system, your house gets cooler. But if you’re looking to purchase a new air conditioner for your home, it’s a good idea to know how to select the right one to fit the space you’re trying to cool.

Air Conditioning Basics

Air conditioners use Freon as a coolant to remove heat from indoor air and transfer that heat outside. To do this, they cycle the Freon through a closed loop of coils. When the cold Freon enters the cooling coil of the air conditioner, it absorbs heat from the air passing by, thereby lowering the temperature of the air. That cooled air can then be transferred into your home and more warm air can be cycled past the cooling coils.

Air Conditioner Sizing

The more air your air conditioner can cool at once, the larger its load capacity. In order to keep a particular space cool, an AC unit has to have a large enough load capacity to accommodate that type of air volume. A unit that’s too small will obviously never be able to keep your room cool enough, but one that’s too big will have a similar problem.

The truth is that when it comes to air conditioner sizing, bigger is not better. It’s best to simply get as good an estimate as you can of what type of load capacity is ideal for the space you’re trying to cool and stick as close to that as you can.

Load Capacity and Freon

Of course, if you want your air conditioner to cool more air at a time, you’ll need more coolant. But simply increasing the amount of Freon in your air conditioner won’t make it cool any better. Freon is simply one of many elements that contribute to effective cooling. And the larger the entire system is, the more Freon is needed.

So more Freon technically contributes to greater cooling capacity, but it’s not enough to accomplish that all on its own. There is really nothing you can do to increase the load capacity of your air conditioner once it’s in place. So for best results, make sure you pick out an appropriately sized unit the first time around.

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What Is SEER?

Friday, May 6th, 2011

If you’ve been looking at air conditioners, you’ve probably noticed that they all seem to have a SEER rating. But what does this actually mean?

The SEER, which stands for Seasonal Energy Efficiency Ratio, is a measure of how energy efficient a particular air conditioning model is. So when you’re shopping around for the best deal on an air conditioner for your home, this is something you’ll absolutely want to pay attention to.

Interpreting SEER Ratings

The SEER rating system is relatively simple – the higher the SEER, the more energy efficient the product. But because a higher price tag typically comes with a higher SEER rating, it’s important to know just how much more efficient a higher rated unit will be. It helps you decide whether paying significantly more for a higher rated unit is worth it in long term savings. Will it actually save you enough each month to make up for the difference in price?

Evaluating Your Energy Usage

A big factor here is how much you will use your air conditioner. If you live in a place with very hot and humid summers where the air conditioning runs constantly, you’re probably best off with the highest SEER you can find. When you consume that much energy to keep your home cool, you want to get as much as possible out of it, and that’s what a high SEER model can do for you.

On the other hand, if you live in an area that doesn’t have the harshest summers, you may be better off with a slightly less efficient (and therefore cheaper) model. Keep in mind, too, that the actual percentage increase in energy efficiency goes up by smaller and smaller increments the higher in SEER ratings you get. For instance, while a 10 SEER unit may be almost 20% more efficient than an 8 SEER model, a 12 SEER is only about 10% more efficient than that 10 SEER.

Finding the Right Balance

The best way to decide what SEER rating is best for you is to determine the annual cooling costs with your current unit and then calculate your savings in dollars based on the percentage each model would improve your efficiency. If you don’t currently have an air conditioner, this can be a bit tricky, but a professional contractor or air conditioning salesman can help you estimate your total monthly cooling costs with the various units.

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2011 AC Federal Tax Credits

Wednesday, May 4th, 2011

You’ve probably heard many arguments for why you should purchase an energy efficient air conditioner. They may cost a bit more up front, but they’ll save you money in the long run by cutting down on your monthly energy bills. They’re also better for the environment because their lower energy usage means less fossil fuels are burned to keep them running.

But there’s another reason energy efficient AC units are better buys than your standard alternative. There are Federal tax credits available to consumers who purchase them. This tax credit can more than make up for the higher purchase price of the units, allowing you to enjoy your monthly savings much sooner and know you’re doing your part to protect the environment.

How to Qualify

In order to qualify for 2011 air conditioning Federal tax credit, you need to purchase an appropriate energy efficient AC system. Your HVAC contractor or salesperson can tell you which models and units qualify for this program. Just make sure you save all documentation and proof of purchase in case you need them to validate your claim.

The AC units that qualify you for this tax credit include those with a SEER (seasonal energy efficiency ratio) of 16 or greater and an EER (energy efficiency ratio) of at least 13. These two numbers are the best and clearest indicators of the overall energy efficiency of the product and can easily be found on the packaging for any air conditioning unit. While a 16 SEER is very good, it is not the highest rating currently available, either, so you won’t be forced to buy the most expensive model available to get your credit.

Credit Details

The tax credit is good for up to 10% of the purchase price of the unit up to $300. Keep in mind, though, that you can only claim up to $500 lifetime towards this program. So if you’ve previously claimed $250, you can only claim an additional $250 for 2011. That’s still a significant savings, though, and well worth looking into if you’re in the market for a new AC unit or system.

So if you’ve been thinking about upgrading your AC system, but haven’t quiet gotten around to, now may be the time to take advantage of this great tax credit opportunity before it’s too late.

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Mechanical or Forced Ventilation v. Natural Ventilation

Monday, May 2nd, 2011

Just about everyone can agree that effective ventilation is essential to maintaining a healthy indoor living environment. But exactly what does this entail? There are quite a few ways to circulate air throughout your home, and each method is appropriate for a specific situation.

Benefits of Natural Ventilation

Natural ventilation, of course, can be achieved simply by opening a window. But there’s actually a lot more to it than that. If you really want to ventilate your home through natural means, then you’ll have to learn to take advantage of the differences in pressure in different areas of your home.

One way to do this is to use cross ventilation. This means opening windows or doors on both sides of your home and allowing the outdoor air to blow through, carrying stale, indoor air out the other side. A more sophisticated version of this is stack ventilation.

In a two-story home, stack ventilation can be achieved by opening the windows on the bottom floor on one side of the house and on the top floor on the opposite side. Because of the differences in outdoor air pressure, air will be sucked in through the lower floor windows and out through the upper ones.

Why Natural Ventilation Is Not Always Practical

These types of natural ventilation can be extremely effective when it comes to both cooling an indoor environment and removing indoor air contaminants. Unfortunately, allowing outdoor air inside unimpeded allows outdoor contaminants easily as well.

On particularly hot or humid days, natural ventilation can’t reduce the indoor temperature enough to make it comfortable indoors. While a light breeze is enough to take the edge off on a moderate spring or summer day, more is needed when the weather is extreme.

Types of Mechanical Ventilation

When you think of mechanical ventilation, you probably jump right to large central air conditioning systems. But that’s certainly not the only type of effective mechanical ventilation available. In fact, mechanical ventilation can be performed by just about any type of fan on the market, and while operating a fan is certainly more expensive than opening a window, it’s still much more affordable than running an air conditioner all day long. Fans can also be used in combination with natural ventilation to achieve better results than either system could on its own.

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Why Install a Ductless Air Conditioner?

Wednesday, April 27th, 2011

As you explore your options in terms of a new home air conditioning system, you will probably have to decide whether you want a system that uses ducts to get the cooled air around the house or one that is considered ductless. Each type of air conditioning system is appropriate in certain situations, so it is important to understand the benefits of each before you can make a decision.

Duct air conditioning systems are the more traditional type on the market today. They generally consist of an outdoor compressor and condenser unit and an indoor air handler. The outdoor unit passes the cooled air through ducts to the air handler, which then takes over circulating the air through the house and back out to the condenser again.

It makes sense to install this type of air conditioning system if you have a large house or if you have ducts already in place. Duct air conditioners can cool a moderate to large sized house quite effectively and they can also be coupled with zone control systems to give you multiple climate zones within your house.

Ductless air conditioners, as their name suggests, do not rely on a system of air ducts to get cooled air distributed throughout your house. Instead, these types of systems use refrigerant lines to transfer coolant from the outdoor compressor to the indoor, wall mounted units. Each of these indoor units can take care of cooling one or two rooms, but in order to cool an entire house with one of these systems, you will need to install multiple indoor units.

However, these multiple indoor units can all be connected to the same outdoor compressor, and they can also be controlled independently. That gives you much greater control over which parts of your house are cooled and how much energy you are using to cool areas that may or may not be occupied.

Ductless air conditioners are generally more energy efficient than ducted ones, but their real advantage comes from the facts that they can be installed even in places where air ducts do not exist or cannot go. If you do not already have ductwork in your house, installing a duct system will add considerably to the price of installing a ducted air conditioning system. In a case like this, a ductless system is much easier and cheaper to install and certainly makes more sense.

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Why Select a Two Stage AC vs. Single Stage Air Conditioner

Monday, April 25th, 2011

When you are in the market for a new air conditioner, one of the decisions you will have to make is whether you want a two stage system or one that only functions in a single stage. Of course, before you can make a decision about this, you need to know what all of this means.

A single stage air conditioning system is probably what you are most familiar with. They have been around for longer and can be found in a wide variety of locations. Single stage air conditioners come on at full capacity when the temperature in your home rises above the preset level on the thermostat. Once they have effectively cooled the house, these types of air conditioners shut off until the temperature works its way back up again.

Two stage air conditioners, on the other hand, can function at either 67% or 100% of capacity depending on exactly how warm it is in your home. What that really means is that if the temperature in your home is only a little above the thermostat’s preset limit, the air conditioning system will come on at 67% and gradually cool the house to keep it right in a comfortable range.

However, if you have not been home for a while and your home has gotten very warm inside, your air conditioner will come on at full power to get the temperature down quickly. What this really means is that your air conditioner will be running more than a single stage air conditioner because it will sometimes not be using all of its power to cool.

The end result of using a two stage air conditioner is that you will receive a relatively continuous flow of cool air throughout your home. A two stage air conditioner will send in a steady but smaller stream of cooled air as opposed to the large blast of cold air you would get from a single stage system.

This results in a more consistent and comfortable environment overall, and it also makes it possible for the air conditioning system to dehumidify your house more effectively. When the air is cooled too quickly, the dehumidification system does not always have time to do its job. But with the longer cooling cycles of the two stage system, there is plenty of time to make sure the right amount of humidity is removed from the air.

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How a Circulating Fan Can Save You Money and Help Your AC Keep You Cool

Monday, January 31st, 2011

If you already have a central air conditioning unit, you probably have not though much about having some ceiling fans put in as well. After all, why would you need a fan when your air conditioner can keep you as cool as you want all year long?

Well, the truth is that a ceiling fan can actually contribute a lot to your household even when you do already have the central air in place. It can also save you quite a bit of money when it comes to your monthly cooling costs, so there is really no reason not to look into getting a ceiling fan of your own.

Certainly the air that air conditioners distribute throughout your house is quite cool. But a ceiling fan will help to circulate it much more effectively. In fact, a good ceiling fan can make a room feel up to eight degrees cooler than it actually is just because of the cooling affect that moving air has on your body.

This means that you could set the thermostat on your air conditioner higher and still enjoy the same level of comfort that you are used to. You may already know that for every degree you raise your thermostat in the summer you will be saving up to 3% off of your regular energy bill. So if you can turn the air conditioning down by more than five degrees, you will surely be seeing some substantial savings.

Of course, you are still running the ceiling fan in place of the air conditioner, but the fan will use only a very small fraction of the energy that the air conditioner does. This all means that having a ceiling fan and using it wisely can help you cut your annual cooling costs dramatically.

And a ceiling fan will be useful in the winter as well. Since heat rises, you can turn your fan on backwards and it will push the heat that has risen to the top of your room back out along the walls and down. This means that you will be getting more for the heat you are paying for as well, making the ceiling fan a great money saver all year long.

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How Does a Heat Pump Work?

Wednesday, January 5th, 2011

If you’re in the market for a new home heating and cooling system, a heat pump is definitely an option worth considering. However, while the popularity of these systems is growing rapidly, many people still don’t understand what they’re all about. Before you go out and get yourself a new home comfort system, you should make sure you really know what you’re looking at.
As their name suggests, heat pumps move heat from one location to another. However, their name can be misleading as well. Heat pumps are able to both heat your home in the winter and keep it cool in the summer by taking heat from the air in one place and sending it to another.

For example, your heat pump will remove the heat from your indoor air in the summer and pump it outside to keep your home cool. In the winter, the process is reversed, and the heat pump gathers heat from the outdoor air and pumps it inside to keep you house warm.

Of course, it’s not hard to see how the air inside your home in the summer has heat in it. But the outdoor air in the winter is cold. So how does a heat pump heat your house with cold air? Well, the truth is that there is almost always some heat in the air, no matter how cold it seems to you and me.

In fact, the temperature would have to drop well into the negative range before there was absolutely no heat to be found in the air. And heat pumps are specially designed to find that heat and collect it.

Basically all heat pumps work on this principle. However, they can’t keep your house comfortable all on their own. Heat pumps are usually installed as part of a complete home heating and cooling system. This means they’ll be paired with an air handler that can circulate the temperature controlled air throughout the house.

There are also some heat pumps that supplement the amount of heat they’re able to pull out of the air by heating it as it passes through. These types of heat pumps are often more effective in cooler areas, but because they require more energy to actually generate heat, they’re not typically as energy efficient as models that rely on their ability to get heat only out of the air.

If you’re in the market for a new home heating and cooling system, a heat pump is definitely an option worth considering. However, while the popularity of these systems is growing rapidly, many people still don’t understand what they’re all about. Before you go out and get yourself a new home comfort system, you should make sure you really know what you’re looking at

As their name suggests, heat pumps move heat from one location to another. However, their name can be misleading as well. Heat pumps are able to both heat your home in the winter and keep it cool in the summer by taking heat from the air in one place and sending it to another.

For example, your heat pump will remove the heat from your indoor air in the summer and pump it outside to keep your home cool. In the winter, the process is reversed, and the heat pump gathers heat from the outdoor air and pumps it inside to keep you house warm.

Of course, it’s not hard to see how the air inside your home in the summer has heat in it. But the outdoor air in the winter is cold. So how does a heat pump heat your house with cold air? Well, the truth is that there is almost always some heat in the air, no matter how cold it seems to you and me.

In fact, the temperature would have to drop well into the negative range before there was absolutely no heat to be found in the air. And heat pumps are specially designed to find that heat and collect it.

Basically all heat pumps work on this princ

If you’re in the market for a new home heating and cooling system, a heat pump is definitely an option worth considering. However, while the popularity of these systems is growing rapidly, many people still don’t understand what they’re all about. Before you go out and get yourself a new home comfort system, you should make sure you really know what you’re looking at

As their name suggests, heat pumps move heat from one location to another. However, their name can be misleading as well. Heat pumps are able to both heat your home in the winter and keep it cool in the summer by taking heat from the air in one place and sending it to another.

For example, your heat pump will remove the heat from your indoor air in the summer and pump it outside to keep your home cool. In the winter, the process is reversed, and the heat pump gathers heat from the outdoor air and pumps it inside to keep you house warm.

Of course, it’s not hard to see how the air inside your home in the summer has heat in it. But the outdoor air in the winter is cold. So how does a heat pump heat your house with cold air? Well, the truth is that there is almost always some heat in the air, no matter how cold it seems to you and me.

In fact, the temperature would have to drop well into the negative range before there was absolutely no heat to be found in the air. And heat pumps are specially designed to find that heat and collect it.

Basically all heat pumps work on this principle. However, they can’t keep your house comfortable all on their own. Heat pumps are usually installed as part of a complete home heating and cooling system. This means they’ll be paired with an air handler that can circulate the temperature controlled air throughout the house.

There are also some heat pumps that supplement the amount of heat they’re able to pull out of the air by heating it as it passes through. These types of heat pumps are often more effective in cooler areas, but because they require more energy to actually generate heat, they’re not typically as energy efficient as models that rely on their ability to get heat only out of the air.

iple. However, they can’t keep your house comfortable all on their own. Heat pumps are usually installed as part of a complete home heating and cooling system. This means they’ll be paired with an air handler that can circulate the temperature controlled air throughout the house.

There are also some heat pumps that supplement the amount of heat they’re able to pull out of the air by heating it as it passes through. These types of heat pumps are often more effective in cooler areas, but because they require more energy to actually generate heat, they’re not typically as energy efficient as models that rely on their ability to get heat only out of the air.

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Heating system rebates up to $3,500 – now through December 31st!

Thursday, December 2nd, 2010

Have you taken advantage of the Federal Tax Credit yet?  What are you waiting for?  This is the FINAL MONTH to save thousands of dollars when you replace your old, less efficient home heating system with a new, energy saving, high efficiency heater!  If you replace your natural gas, propane gas or oil heating system with a qualifying system by December 31st the Federal Government is providing a tax credit up to $1,500!*

The year-end incentives don’t stop there!  In addition to the tax credit, manufacturer rebates of up to $1,000 on new heating systems and air conditioning systems are available now through December 31st.  Combine these two incentives and you’re saving up to $2,500 by simply having Carney Plumbing, Heating and Cooling replace your old, less efficient heater and air conditioner with a new, energy saving system.

In addition to the money you’re saving through the rebate offers, modern high efficiency heating and air conditioning systems save hundreds of dollars each year in energy usage and come with FULL 10 YEAR PARTS & LABOR WARRANTIES.
Call us today at 215.346.7160 to schedule your FREE, in-home consultation!  Don’t forget- these rebates are only available until December 31st.

The rebates don’t stop there!  We would like to offer you even more savings!  Carney Plumbing, Heating and Cooling now has a coupon allowing for an instant $400 off of your purchase of a new heater and air conditioner!  Click here for the coupon!

Finally, utility providers such as PECO and PP&L are offering rebates up to $700 for high efficiency furnaces, heat pumps and air conditioners.

Families across Pennsylvania are taking advantage of the Rebate Programs.

As you can see, the savings really add up if you act now, but this opportunity will not last!  Don’t wait until after December 31st to have your new heating system installed, because missing this deadline will cost you savings of up to $3,500!!!  Call Carney today to schedule your FREE in-home consultation and take advantage of these unprecedented incentives before the year is over and these offers expire!

*Consult your tax preparer for personal eligibility concerning tax credit.

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How to Cover Your Air Conditioner for the Winter

Tuesday, November 23rd, 2010

This time of year, it seems that you’re covering almost everything. You’re wrapping up in hats and scarves and you’re putting frost blankets over your garden plants at night. You might even be covering a beloved boat, motorcycle, or summer convertible.

If you have an outdoor air conditioner that won’t be used during the winter months, you might be wondering if you should cover it, too. The answer is – yes!

Air conditioner in snow

Air conditioners don't like to be left out in the cold!

Covering your air conditioner is one of the best ways to protect your investment and keep future costs down. Here’s why:

  • Covering your outdoor air conditioner provides maximum protection against debris (leaves, branches, acorns, pine needles, sand, and salt).
  • A cover stops precipitation from getting into the system, then freezing and expanding. (Also, if you live near the ocean, it keeps out salty water and air.)
  • An air conditioner cover minimizes the possibility of damage during storms, when tree branches or hail may fall on the unit and chip the paint or bend the fins on the grille.
  • You’ll increase the efficiency of your air conditioner by keeping the condensing coil clean (good for the environment and for your wallet!)
  • You’ll have less cleaning and repairing to do next spring – and your maintenance costs will be lower!

Covering your air conditioner will extend its life and reduce its operating costs. But…you need to be smart about how you cover your outdoor AC. If you cover it with plastic, you may trap moisture around the unit, creating ideal conditions for rust, mold, and mildew. This is especially a concern on those sunny winter days when the air inside the cover will heat up to be much hotter than the outside air. Also, a plastic cover can create a very cozy place for rodents and insects to spend the winter. Once they’re inside the cover, it won’t take them long to find their way into the equipment itself.

You should make sure to choose a cover made of breathable material – NOT plastic. The cover should also have appropriate ventilation to ensure that moisture doesn’t build up.

How do you choose the best cover for your air conditioner? Consult your owner’s manual, and contact us for advice. We’ll be happy to help.

Also, make sure to schedule a service appointment for the spring, before you start your unit up again. The service will include a thorough cleaning of any debris that did find its way into your unit, plus a check for any damage to the fins. We’ll also check that the pipe insulation is in good shape and that the unit is level – two simple but important things that can improve your unit’s functioning and efficiency.

P.S. If you have a window AC unit, the ideal solution is to take it out for the winter instead of covering it.

This time of year, it seems that you’re covering almost everything. You’re wrapping up in hats and scarves and you’re putting frost blankets over your garden plants at night. You might even be covering a beloved boat, motorcycle, or summer convertible.

If you have an outdoor air conditioner or heat pump unit that won’t be used during the winter months, you might be wondering if you should cover it, too.

It seems like a simple question, but in fact it generates a fair amount of controversy.

Almost everyone thinks that it’s advisable to cover outdoor AC and heat pump units rather than leaving them completely exposed to the elements. However, not everyone approves of covering the units completely.

On the one hand, putting a full cover on an outdoor air conditioner or heap pump provides maximum protection against debris (leaves, branches, sand, and salt). A cover also stops water from getting into the system and then freezing and expanding in there. Plus, a full cover minimizes the possibility of damage during storms, when tree branches or hail may fall on the unit and chip the paint or bend the fins on the grille.

On the other hand, completely covering outdoor air conditioners and heat pumps can trap moisture around the unit, creating ideal conditions for rust, mold, and mildew. This is especially a concern on those sunny winter days when the air inside the cover will heat up to be much hotter than the outside air. Also, a cover can create a very cozy place for rodents and insects to spend the winter. Once they’re inside the cover, it won’t take them long to find their way into the equipment itself.

One common way to cover air conditioners and heat pumps is simply to place a piece of plywood across the top of the unit, weighted down with cinderblocks (bricks and smaller rocks have can been reported to blow off in strong winds). This will keep out the worst of the precipitation and debris, but will still leave the unit well-ventilated. And, there will be no place for moisture or vermin to linger!

If you do opt for a full cover for your heat pump or air conditioner, make sure that it is not plastic. The cover should be made of a breathable material, and should be vented to prevent the buildup of hea

This time of year, it seems that you’re covering almost everything. You’re wrapping up in hats and scarves and you’re putting frost blankets over your garden plants at night. You might even be covering a beloved boat, motorcycle, or summer convertible.

If you have an outdoor air conditioner or heat pump unit that won’t be used during the winter months, you might be wondering if you should cover it, too.

It seems like a simple question, but in fact it generates a fair amount of controversy.

Almost everyone thinks that it’s advisable to cover outdoor AC and heat pump units rather than leaving them completely exposed to the elements. However, not everyone approves of covering the units completely.

On the one hand, putting a full cover on an outdoor air conditioner or heap pump provides maximum protection against debris (leaves, branches, sand, and salt). A cover also stops water from getting into the system and then freezing and expanding in there. Plus, a full cover minimizes the possibility of damage during storms, when tree branches or hail may fall on the unit and chip the paint or bend the fins on the grille.

On the other hand, completely covering outdoor air conditioners and heat pumps can trap moisture around the unit, creating ideal conditions for rust, mold, and mildew. This is especially a concern on those sunny winter days when the air inside the cover will heat up to be much hotter than the outside air. Also, a cover can create a very cozy place for rodents and insects to spend the winter. Once they’re inside the cover, it won’t take them long to find their way into the equipment itself.

One common way to cover air conditioners and heat pumps is simply to place a piece of plywood across the top of the unit, weighted down with cinderblocks (bricks and smaller rocks have can been reported to blow off in strong winds). This will keep out the worst of the precipitation and debris, but will still leave the unit well-ventilated. And, there will be no place for moisture or vermin to linger!

If you do opt for a full cover for your heat pump or air conditioner, make sure that it is not plastic. The cover should be made of a breathable material, and should be vented to prevent the buildup of heat and moisture.

How do you decide how best to cover your air conditioner or heat pump? Consult your owner’s manual, and call us for advice. We’ll be happy to help.

No matter how you decide to cover your heat pump or air conditioner, you should contact us to schedule a service appointment in the spring, before you start your unit up again. The service will include a thorough cleaning of any debris that did find its way into your unit, plus a check for any damage to the fins. We’ll also check that the pipe insulation is in good shape and that the unit is level – two simple but important things that can improve your unit’s functioning and efficiency.

P.S. If you have a window AC unit, the ideal solution is to take it out for the winter instead of covering it.

t and moisture.

How do you decide how best to cover your air conditioner or heat pump? Consult your owner’s manual, and call us for advice. We’ll be happy to help.

No matter how you decide to cover your heat pump or air conditioner, you should contact us to schedule a service appointment in the spring, before you start your unit up again. The service will include a thorough cleaning of any debris that did find its way into your unit, plus a check for any damage to the fins. We’ll also check that the pipe insulation is in good shape and that the unit is level – two simple but important things that can improve your unit’s functioning and efficiency.

P.S. If you have a window AC unit, the ideal solution is to take it out for the winter instead of covering it.

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