I need to replace my air conditioner, but my furnace works just fine. Is it true they need to be replaced at the same time? 
Think of your air conditioner and furnace as part of a total system. That system will work better, longer and more efficiently if all of its components are matched in capacity and efficiency. For example, your new air conditioner will be rated with a specific SEER efficiency rating. Your existing furnace and indoor coil can significantly impact this efficiency because of technology differences and an imbalance in capacity. Your indoor coil may even be dirty and blocked with particles, which further hinders its performance. A mismatched system mixes old technology with new, decreasing your overall comfort and diminishing performance.

Why are rating numbers important? 
Rating numbers indicate the efficiency of heating and air conditioning equipment and are directly related to the amount of energy a specific model uses. The higher the rating, the more efficient the product, and the lower your energy bills can be. The federal government establishes rating guidelines and sets minimum efficiency levels. For cooling, the rating is SEER (Seasonal Energy Efficiency Ratio). For heat pumps, the rating is HSPF (Heating Seasonal Performance Factor). Gas furnaces are rated with AFUE (Annual Fuel Utilization Efficiency).

What’s the difference between a manufacturer’s limited warranty and an extended warranty? 
A manufacturer’s limited warranty is the warranty that a product leaves the factory with. Typically, it covers specific parts for a limited period of time. Extended warranties are optional and are generally purchased at the same time as the equipment. Optional extended warranties cover all parts and may even include labor. There are a variety of optional extended warranties to choose from, but all are designed to offer long-term peace of mind.

My children have allergies. Is there a way to improve the indoor air quality in my home?  
An electronic air cleaner is 40 times more effective than a standard throwaway filter in removing unwanted particles from your home. Particles such as pollen, dust, bacteria, tobacco smoke, cooking smoke, animal hair and dander prevent your indoor air from being as healthy as it could be. An electronic air cleaner with a washable electronic cell is up to 99% effective at removing these airborne particles. An electronic air cleaner also protects the operating efficiency of your heating and air conditioning system and keeps your furniture, drapes, carpet and walls cleaner, as well.

How can I control my energy costs?  
If you’re shopping for a new heating and air conditioning system, the best way to control your energy costs is to purchase a high efficiency variable speed system. Variable speed means your system varies its speed depending on your home’s heating and cooling requirements. Because of this, variable speed systems are more efficient than single-stage systems. Efficiency ratings also matter. When you match a 14, 16 or 18 SEER air conditioner or heat pump with a variable speed furnace or air handler, you can rest assured that you’ve selected a home comfort system that is one of the quietest and most energy efficient available today.

How do I know what size system I need for my home?  
One of the first things a reputable dealer will do is conduct a complete energy analysis of your home. By measuring windows, checking insulation, ductwork and building materials, as well as a variety of other factors, he can determine the right size system and equipment for your home. He’ll even ask you questions about your existing comfort challenges, for example: Are there rooms in your home that are always too hot or too cold? If this is the case, you may need ductwork modifications in addition to a new system.  

How often should I change or clean my filters?

Filters should generally be replaced every month when the system is running. Replace filters with the same kind and size as the original filter. If your filter is not disposable, follow the manufacturer instructions for cleaning. If you're using a high-density filter such as an electrostatic filter, check with your local dealer, who can raise the external static pressure of your system. If the external static pressure exceeds the design criteria of your system, it can negatively impact the performance and life of your equipment. 

Where is my filter located?

Your air filter should be located in either the blower compartment of the furnace, in an attached filter case, or in a return air grille in a wall of your home. If you cannot find the air filter, contact your local independent dealer for assistance. 

Where can I purchase filters?

If you are unable to find the appropriate-size air filter at your local hardware outlet, they may be able to cut-to-fit filters that will also work, or you can contact your local dealer. 

What services need to be performed for preventative maintenance on my heating and air conditioning equipment? How often should this maintenance be performed?

We recommend you have your local dealer perform preventative maintenance before the winter heating season and before the summer cooling season. Many local dealers offer service agreements that may include reduced rates on labor and parts and provide priority response. Service/maintenance agreements may include cleaning indoor and outdoor coils, tightening electrical connections, checking supply voltage and operating current, checking refrigerant charge, measuring temperature differential at supply and return registers, cleaning blower wheel and motor, inspecting and adjusting burner, checking heat exchangers, cleaning drain lines and pan, checking ductwork for leaks and insulation, and checking thermostat. 

Should I cover my outdoor unit in the winter?

Covering the unit is not necessary. Air conditioners are manufactured to withstand all possible climate changes. In fact, rain helps keep your unit clean. Of course, because heat pumps run all year long, they should never be covered. 

How close to the outdoor unit should I plant shrubs or flowers?

Manufacturers generally agree that plants should not be closer than 18 inches. Air conditioners need intake and exhaust air to operate efficiently. If air cannot circulate, the unit could build up heat and require service. 

What are the average life expectancies for heating and air conditioning equipment?

The average expected life of an air conditioner is approximately 15 years. The average expected life of a heat pump is approximately 10 to 12 years, since it operates year round. The average expected life of a gas furnace or air handler may be longer. Units in corrosive environments, such as, but not limited to coastal installations, will tend to have shorter lives. 

Is there any advantage to setting my thermostat fan to “ON” so the fan runs constantly?

Yes, there are a couple. The first is that you get constant filtering of the air in your home. The second is that because the air is moving, you have a more even temperature throughout the home. However, continuous fan mode during COOLING operation may not be appropriate in humid climates. If the indoor air exceeds 60% humidity or simply feels uncomfortably humid, it is recommended that the fan be used in AUTO mode. 

I've heard a lot about new refrigerants. Do I need to think about them when buying a system?

We do not advise homeowners to choose home comfort systems based on the refrigerant they use. The Clean Air Act does not allow ANY refrigerants to be vented into the atmosphere. They must be reclaimed, recycled and reused.  
 
Units using the current refrigerant, R-22, will always be serviced with R-22.  
 
They will not need to be changed to a different refrigerant. The scheduled phased-out of R-22 allows for plenty of refrigerant to be available to service all cooling units and heat pumps that use R-22 for the life of the equipment. We do offer limited lines of high efficiency comfort systems using R-410A refrigerant. Our gradual introduction of these products has allowed servicers in the field the opportunity to adapt to the required installation and service techniques, to ensure homeowners continue to receive the comfort and value they have chosen.  
 
As the HVAC industry gradually and confidently transitions to a new refrigerant, we encourage homeowners to maintain their focus on purchasing energy efficient home comfort products that best meet their comfort needs. Purchasing higher-efficiency air conditioning and heating systems and better sealing our homes will not only improve comfort and reduce energy costs, but will also improve our environment. 

Why do my lights flicker when my air conditioner turns on?

Light flicker associated with the starting of appliances usually does not pose any safety problems and does not damage appliances. Proper wire connections and grounding are necessary to reduce flicker. Contractors and homeowners should check with their local utility regarding the appropriate wire size and transformer servicing the home. In cases where light dimming is related to the starting of a central air conditioner, and the previously discussed steps have not resolved the situation, manufacturers offer start assist kits that can be purchased which may help reduce flicker. Please contact your local dealer for assistance. 

What is the difference between a Manufacturer's Limited Warranty and an Extended parts and labor Warranty?

A limited warranty covers specific parts (i.e. compressor, coil, electronics, etc.); therefore, the warranty language limits it. Extended warranties are generally purchased in addition to the limited warranty. Extended warranties cover all parts and may also include the labor for the service call. An extended warranty protects you from unexpected and unbudgeted service calls for the duration of the warranty. 

How do I find and evaluate an air conditioning dealer?

Finding the right air conditioning dealer is an important process. Selecting the right dealer can make the difference between getting the most comfort and efficiency for your money or, getting stuck with a cooling system that doesn't meet your needs. Here are some tips on evaluating an air conditioning dealer:

• Ask the air conditioning dealers you are considering how long they've been in business. Common sense says that older, more established companies will have a better record of customer satisfaction.
• Check to see the dealer's contractor's license. Dealers must have a license to receive the permits needed for the job. And, only licensed HVAC contractors can legally purchase the refrigerant needed for air conditioners and heat pumps.
• Ask for references. Then, follow up by calling those people and asking them how satisfied they were with the dealer. Try to ask specific questions, about the dealer's timeliness, ability to follow through on start and finish times, etc.

Many air conditioning and heating manufacturers have dealer locators on their Internet sites to help you locate the right dealer.  

How can I save money when purchasing an air conditioner?

Check the age of your current heating and/or air conditioning unit. Generally, newer products are much more efficient that older products. Current furnaces on the market can be over 90% efficient. Modern air conditioners also use much less electricity than their predecessors.  
 
Before making an air conditioner purchase, be sure to check the "SEER" or Seasonal Energy Efficiency Ratio on the product you are considering. This efficiency measurement is similar to Miles Per Gallon for cars. The higher this number, the more energy efficient they system is. New units have SEER ratings from 10 to 17 BTUs per watt. Generally, purchase price increases with SEER.  
 
When selecting a furnace or heating unit, check the efficiency rating. Heating systems with efficiencies in the 90% range are best, but for less money, you may want to go with an 80% efficient.  

What do I look for in a new air conditioner or heating system?

The system you choose depends upon your personal needs. There are generally 3 major criteria for making a purchasing a furnace or air conditioner:

1. Brand name and reputation
2. Efficiency and performance
3. Value for the price

Don't short-change yourself by selecting your air conditioning or heating product or system purely on price. That decision may cost you more in the long run. Quality and reliability of the brand should be a key consideration. 

How can I compare air conditioner brands?

Before contacting or selecting a dealer, be sure to spend some time researching the brands on your own. Each manufacturer has a different value proposition and brand reputation. You need to decide which one you feel most comfortable with and which best meets your needs.  
 
Visit the various brands' Internet sites. Most brands provide a good overview of their company and products. 

How much money will I spend on an air conditioner or heating system? 

The total price of air conditioning and heating products depends on a lot of variables...

1. Brand selection
2. Number of components purchased
3. Type of components purchased
4. Dealer selection / installation cost

Generally, more reputable, higher quality brands will cost slightly more. Within brands, there are usually good, better and best products, each with different price tags. Efficiency ratings can also affect cost—more efficient products generally cost more.