It's our goal to get you the most relevant & helpful information when it comes to your energy usage and savings. Luckily, there are many resources available to help us all start living a more energy efficient lifestyle with out breaking the bank.

Browse our helpful sections below to get started.

Select a category or search to learn more.

SAVE Money in Your Home

Energy Rebates


Learn more about Centerpoint Energy's Current Rebate Programs.




Tips to lower your utility bills


Forbes lists 10 simple ways to lower your monthly utility bills.




Heat and Cool your home, efficiently.


Learn how to live in a more efficient and comfortable home: https://www.energystar.gov/campaign/heating_cooling




Bryant Bonus Promotion


When you buy Bryant, you get an experienced dealer willing to do "Whatever It Takes" and dependable products. Now when you purchase a qualifying Bryant product or system, you can receive up to a $450.00 rebate on your purchase. Call 870-673-1356 for options and Promotion Dates.





Ask the Experts

Troubleshooting Checklist


Troubleshooting a heating and cooling problem yourself could save you the expense of a wasted service call. The information listed here can be used to troubleshoot general heating & cooling problems. Of course, if this information does not solve your problem, you'll need a qualified service technician from Derden's. Just call 870-673-1356 or Request Service Online, to get started. SAFETY FIRST - Never perform any service you're not comfortable with or experienced in doing. When in doubt, give us a call & we'll send a technician to your home.

  1. Make sure your thermostat settings are correct, relative to the season & the temperature you desire. This may seem obvious, but this is a simple step that can be overlooked.
  2. Check to make sure your disconnect switches & breakers are switched to ON.
    If they are turned to OFF, simply turn the breakers back on to see if this fixes your problem. If the breakers have tripped, you may need to reset the breaker box before the problem will be fixed. But, keep in mind that breakers trip for a reason & simply resetting the breaker box may only delay an even bigger problem & expense down the road. If this does not solve your problem, continue to the next step.
  3. Check for a blown a fuse.
    If a blown fuse is your problem, then you simply need to change the fuse in question. However, certain precautions need to be taken for your safety. If you’re comfortable changing a fuse then you need to make sure you turn off all power to the fuse box. Again, fuses blow for a reason and there could be a more serious underlying problem.
If none of these options work, then it’s time to have a qualified technician check your system. Call 870-673-1356 or Request Service Online, to get started. If you simply have a question, Send us a message or call and we'll be happy to help.




Repair or Replace?


As Heating & Cooling specialists, it's our job to help you decide when you need to repair your existing system or replace it with a new one. Most of the time, this is a tough situation and system performance or issues may not always lead to yes or no answers. And let's face it, spending large amounts of your hard earned money on a new heating and air unit isn't exactly the most fun expense. The Good News: there are many different variables we can examine to help point you in the right direction; So, you can make the best decision for your situation. All three of the following variables are closely correlated to your system's performance and your wallet. Life Expectancy Most systems have a life expectancy of about 10-15 years. Throughout a system's life, it will experience break downs, just like other equipment you depend on. When this happens, we tend to want to fix the exposed problem and not proceed further. But, what most home owners don't keep in mind, is that there could be other problems associated with the 1 exposed problem and with older systems, the chances for this scenario to happen are much higher. In such a case, it doesn't make much sense to spend the money to repair an old system when it has several problems. On the other hand, simply ignoring the possibility of hidden problems could cost you a lot of money down the road & drastically reduce your system's life expectancy. But does that mean you should replace your system? Not necessarily. Considering the next two variables should help you to better understand your options. Operating Costs Today's energy efficiency standards are much higher than previous years. New systems, for example, operate at a much lower cost compared to systems that are even five years old. When you repair an older system, your efficiency will only be as high as its current efficiency standard, which is most likely, not very efficient at all. Overall Operating Efficiency In order to get the most efficiency from your system, all components must be properly working together. If you replace your old system, but keep your old thermostat, you're not going to reap all the benefits of your new system. A new high efficiency system paired with a new programmable thermostat, for instance, could actually do miracles for your energy bills. No matter what you choose to do, there are many different variables that work together to create your home comfort, and we're here to help. We take your savings and your comfort very seriously, just like we do in our own homes. Visit our Bryant or Lennox Sales pages to learn more. There you can request more information and of course, you can always call us 870-673-1356 to talk about your options.




Self Preventive Maintenance


Regular maintenance on your heating & cooling system plays a vital role in the overall life expectancy & operating efficiency of your equipment. Below are a few things you can do yourself to help lengthen the life of your equipment & ultimately save money on your energy bills:

  • Keep debris & leaves away from your air conditioning unit.
  • Keep the air filter in your fan coil or furnace clean by checking & cleaning it every 3-4 weeks. *Safety First: Be sure to remove all electrical power before removing any access panels*
  • Check to see if the placement of your outdoor unit is on a level surface.
  • Clean your humidifier at the beginning of each heating season.
In addition to this self-maintenance, your system requires many other maintenance tasks in order to operate efficiently. These specific tasks can only be done by a heating and cooling professional. If you are interested, please visit our Preventive Service page to learn more about our valuable Annual Preventive Service Program and how we can help you extend your system's life, lower your energy costs, and save you money in the long run.




Troubleshooting | Common Issues


No Cooling One of the most common reasons your system quits cooling, is because a breaker is not turned to ON or a breaker has tripped. However, in some cases a fuse may have blown. On the other hand, it could be as simple as your thermostat settings being correct. First check to make sure that they are set correctly, based on the temperature you desire. Next, check the breakers relative to your system. All breakers associated with your system should be switched to ON. If they are already marked ON, then you need to check the fuses. A blown fuse will simply need to be changed. If you’re comfortable changing a fuse then you need to make sure you turn off all power to the fuse box. SAFETY FIRST - Never perform any service you're not comfortable with or experienced in doing. When in doubt, give us a call & we'll send a technician to your home. No Heating Common causes may include:

  • The gas has been turned off to your house
  • Your system is turned off or unplugged
  • Tripped circuit breaker
  • Thermostat setting malfunction
Always check your thermostat settings first, as this is the easiest troubleshooting process. If your system has been unplugged, simply plug it back in. This should be the primary cause for loss of heat, but not always. If the system still doesn't come on after 5 minutes of being plugged back in, then you will need to follow the proper steps to troubleshoot further. If the source of the problem is a tripped breaker, you will need to check all relative breakers. To find out if your gas has been turned off, check all associated valves (the gas valve at the gas company's meter, the shutoff valve at the furnace & any other associated shutoff valves). If your gas has been shut off, then you will need to contact your Gas Company to find out why & have them turn it back on. If this information does not solve your problem, you'll need a qualified service technician from Derden's. Just call 870-673-1356 or Request Service Online, to get started. Heater is making a Funny Smell In most cases, this is not a problem at all. More than likely, your system is burning off dirt that has built up over the off season. However, sometimes this can be an electrical problem. If the odor disappears after a couple of minutes, you most likely do not have a problem & it's simply your system burning off dirt & dust. On the other hand, if the smell persists & does not dissipate, this can signal an electrical issue. If this is your situation, call us immediately at 870-673-1356. Electrical problems can be very serious & do not need to be taken lightly. If for any reason you think that this may be an electrical problem, do not hesitate to call us as the issue will need to be diagnosed & fixed promptly. No Airflow There are two common culprits for this problem.
  1. A dirty filter.
  2. A frozen system due to a dirty coil.
First, check all of your system filters for dirt and build up. If your filters are very dirty, simply replace them with new, clean filters. However, if that's not your problem, you could have a frozen system. Start by checking for water below the unit & a cold surface on the exterior of the coil (you may even see ice buildup on the copper lines). If these conditions are present, your unit has frozen. You can try turning off your thermostat for a couple of hours to see if the unit will defrost. But, more than likely, you will need a qualified technician to properly diagnose the problem. Unfortunately, there are many different variables that could be involved with this type of problem. Call 870-673-1356 or Request Service Online, to get started. Really High Energy Bills Other than the obvious reasons like your energy company raising local rates or temperatures being in the "extreme", there are other factors that can cause unnecessary high energy bills. Try this article from Forbes. It lists easy tips to lower your utility costs. System Will NOT Shutoff This tends to happen when temperatures outside are at an extreme. Your system will run the until it reaches the desired temperature that you set. However, on extreme temperature days, your system may run for long periods of time because it is trying to reach the desired temperature point. Try adjusting your thermostat to a more reasonable temperature, relative to the season. This should give your system a break and allow it to catch up and reach the desired temperature point. If this issue persists, you may have a more serious problem. Calling at the first sign of trouble could save you a much larger expense down the road. Call 870-673-1356 or Request Service Online, to get started.




How does Freon impact you?


Freon is a refrigerant used in air conditioning and heat pumps, also known as R22. This form of refrigerant was once considered harmless. However, today's science has shown that Freon R-22 has a large impact on the ozone layer & ultimately our health. This is due to the fact that the R-22 refrigerant contains more CFC's or chlorofluorocarbons, which increases global warming. The new product replacing R-22 is called Puron or R-410A. This new refrigerant contains less CFC's & has a much lower impact on the ozone layer & global warming. *Starting in 2010, the previous refrigerant, Freon R-22, will no longer be produced, however, can be used until the year 2030.* But what does this mean for you? This means you have until 2030 to purchase a system that does not operate on R-22, but instead, operates with a more environmentally friendly version, such as Puron. Due to this phase out, the cost of Freon is expected to increase as the supply grows obsolete. The good news is that you can purchase systems with Puron capabilities today. Depending on the age of your current system, you may be able to use the environmentally friendly refrigerant. Give us a call at 870-673-1356 or Send us a message. We'll help you determine which refrigerant your system can use and your available options.




What is the general life expectancy of my system?


Short Answer: About 10-15 years. Through out a system's life, it will experience break downs, just like other equipment you depend on. When this happens, we tend to want to fix the exposed problem and not proceed further. But, what most home owners don't keep in mind, is that there could be other problems associated with the 1 exposed problem & with older systems, the chances for this scenario to happen are much higher. In such a case, it doesn't make much sense to spend the money to repair an old system when it has several problems. On the other hand, simply ignoring the possibility of hidden problems could cost you a lot of money down the road & drastically reduce your system's life expectancy.




Tips for Selecting a Contractor


Energy Star gives great tips to help you select the best contractor for your next job: https://www.energystar.gov/campaign/heating_cooling/10_tips_hiring




Should you have your air ducts cleaned?


Before you hire! Read the EPA's complete information on this commonly requested service: https://www.epa.gov/indoor-air-quality-iaq/should-you-have-air-ducts-your-home-cleaned





Recycling

EPA's Wastes Information


Learn what the EPA does to regulate and reduce wastes, and to help clean up when wastes or harmful substances pollute the land we live on. https://www.epa.gov/environmental-topics/land-waste-and-cleanup-topics




Reduce, Reuse, Recycle


Learn more about how you can help: https://www.epa.gov/recycle





Indoor Air Quality & Your Health

The EPA's Intro to IAQ


Get an in-depth, comprehensive guide to all things air quality: https://www.epa.gov/indoor-air-quality-iaq




American Lung Asc.'s Information on IAQ


Learn more about the American Lung Asssociation's Healthy Air Initiatve: https://www.lung.org/our-initiatives/healthy-air/




IAQ Myths


Myth: The air inside your home is cleaner than the air outside. TRUTH: According to the U.S. Environmental Protection Agency, Indoor levels of many pollutants may be 25 to 100 times HIGHER than outdoor levels. This should be a major concern given most people spend as much as 90% of their time indoors. The increased level of pollutants is due in part to homes being constructed more tightly without adequate ventilation. Myth: Because your central heating & cooling system already has an air filter, the air you breathe in your home is clean. TRUTH: There are many types of air filters; from fiberglass panel filters to pleated media filters, which can help reduce indoor air pollution, some devices are designed to trap & capture indoor air pollutants better than others. It's best to use a filter with a Merv rating of 10 or higher. Or, you can use a hepa filter designed to capture the smallest particles & biological pollutants to create a healthier home environment. Learn more about the latest in Clean Air. Myth: Opening a window is a good way to air out a house & get rid of harmful indoor pollutants. TRUTH: As you know, when you open a window, outdoor allergens like pollen can enter the home & potentially aggravate allergy symptoms. However, the best way to enjoy the fresh-air feel of an open window is to install a Heat or energy recovery ventilator that exchanges stale, re-circulated indoor air with fresh, filtered outside air. All can be done with virtually little or no heat or energy loss. Learn more about the latest in Clean Air.




Should you have your air ducts cleaned?


Before you hire! Read the EPA's complete information on this commonly requested service: https://www.epa.gov/indoor-air-quality-iaq/should-you-have-air-ducts-your-home-cleaned





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Derdens provides Electrical and HVAC sales, services and repairs for Stuttgart, Roe, Ulm, Casscoe, Clarendon, Brinkley, Almyra, DeWitt, Lodges Corner, England, Des Arc, DeValls Bluff, and nearby surrounding areas. 

 

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