Why do I need to match my condensing unit and outdoor coil in a new system?
Imagine four old, worn-out tires on your car. You decide to replace only two of them. You can still drive your car, but you'll soon be disappointed with the inconsistent handling and the poor mileage you get. The unmatched tires simply aren't capable of the same level of performance. You could have these same kinds of problems with comfort and efficiency if the components of your central air conditioning or heat pump system are not properly matched. So if you install a new outdoor unit, be sure to include a new, equally efficient "matched" indoor unit.
What is a SEER rating?
Cooling efficiency for air conditioners and heat pumps is indicated by a SEER (Seasonal Energy Efficiency Ratio) rating, which tells you how efficiently a unit uses electricity. The higher the number, the greater the efficiency. The typical SEER rating of units manufactured prior to 1992 is about 6.0. In 1992, the government established the minimum cooling efficiency standard for units installed in new homes at 10.0 SEER. High-efficiency units have a SEER of at least 12.0; the maximum available is about 17.
What's with all the noise in my yard?
Sometimes noise from condensing (outdoor) units interferes with your peace outdoors and even your quiet indoors. It's a factor you should at least look at when you're comparing different models.
The sound level of outdoor units is measured in bels (similar to decibels), on a scale from 0 (barely perceptible sound) to 13 (the threshold of pain). Most air conditioners and heat pumps operate at 8 to 9 bels; some units' ratings are as low as 6.8. That may not sound like a wide range, but consider this: 9 bels sounds 10 times louder than 8 bels. That means one 9-bel air conditioner is as loud as 10 units rated at 8 bels. Taking the time to compare bel ratings is pretty sound advice.
What are some other comfort considerations?
Some air conditioners and heat pumps offer additional features that provide greater comfort. Two-speed units can run on low speed (using 50% of the energy) up to 80% of the time, so they offer the same benefits as multi-capacity furnaces - fewer on/off cycles, fewer drafts and much smaller temperature swings. You also get better air circulation, for even, consistent cooling and/or heating throughout your home. Plus, if you purchase a multi-speed or variable-capacity furnace or fan coil with your unit, you will enhance both the comfort and the efficiency of your air conditioning or heat pump system even further.
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 our technician 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.
