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  1. Merry Deals in December

    December 3, 2013 by admin | Category: Hot Deals, InformationComments (0)

    December bring holidays and merry deals at Johnstone Supply!




  2. Depend on Maytag® for HVAC equipment that meets the unique needs of manufactured housing

    October 8, 2013 by admin | Category: InformationComments (0)


    maytag header

    Depend on Maytag® for HVAC equipment that meets the unique needs of manufactured housing


    • High efficiency in small spaces: we offer the only variable-speed, two-stage 95% efficient furnace approved for manufactured housing – ENERGY STAR® rated and built for a standard manufactured-housing footprint.
    • Oil options: Maytag® CMF2 and MS oil furnaces are ideal replacement furnaces.
    • Corrosion protection: Maytag® C8 aluminum indoor coils eliminate copper in order to eliminate formicary corrosion, the #1 cause of coil leaks. The C8 is lighter and uses less refrigerant than traditional coils.
    • Easy install: Maytag® E3 electric furnaces require no additional parts to reduce labor. Aluminum quick-connect linesets are lighter and easier to handle and bend.
    • Better packaging: Our units are fully boxed to reduce handling damages.

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  3. Browning® Belt Drives and Mounted Bearings

    by admin | Category: InformationComments (0)

    browning title


    Browning® VP Variable Pitch Sheaves

    • Increased thick wall design for increased horsepower capacity and shorter center drivesbelts

    B5V® Sheaves

    • Combination groove accepts A, B and 5V belts

    Browning Brand V-belts

    • Unique design enhances performance, provides increased horsepower capacity in short center drives

    Brown Ball Bearings

    • “AH” series available in setscrew and BOA lock

  4. Stock your truck now!

    September 24, 2013 by admin | Category: InformationComments (0)

    Save time and money with universal solutions for multiple needs. Here are our Top 5 picks!


      • work truck


    RESCUE® Motors

    • Replaces hundreds of other discrete horsepower motors
    • For air handler or furnace applications 1/2 to to 1/6 HP in 1075 RPM, 115V
    • Extended mounting studs,resilient rings and exclusive Rheem® and Ruud® side shell holes.


    Griptwist Adjustable Belt

    • Adjustable to any length, standard size of A/4L in a 5’ coil
    • Replaces standard and fractional horsepower V-belts
    • Superior design with less stretch, and up to 90% less vibration


    Universal Single Stage HIS Integrated Control Kit

    • Replaces over 190 W-R and  competitive single stage carbide and nitride HSI applications
    • Can be used on both 80v and 120v ignitor applications
    • Includes HotRodTM Universal Ignitor


    Universal Non-Integrated HSI Ignition Module

    • Replaces over 80 competitive hot surface ignition modules
    • Program keys for multiple timing selections
    • LED indicator for diagnostics


    HotRodTM Universal Ignitor

    • Replaces over 150 ignitors
    • Largest ignition Hot Zone — twice the size of leading competitor’s
    • One universal bracket = easy installation




  5. If we can’t source your X13® motor, we’ll buy you lunch!

    August 7, 2013 by admin | Category: InformationComments (0)

    x13 motor


  6. This Month – Receive a Wireless Indoor Air Sensor with purchase of the All New RedLINK™ VisionPRO*

    August 2, 2013 by admin | Category: Information, Product FeatureComments (0)

    Wireless Indoor Air Sensorwireless sensor


    • Use up to six sensors per application without square root numbers or parallel series wiring; no more OHM’s Law

    • Works in both residential and light commercial applications

    • Monitor and control temperature and humidity separately

    • Changes the sensing location of the thermostat -use indoor sensor as primary sensing device, hiding thermostat elsewhere

    • Averages temperature for more even comfort control – alleviate hot and cold spots

    • Works with the All New RedLINK VisionPRO

    TH8321R1001/L46-669 – 171.99

    TH8320R1003/L46-668 – 157.99

    TH8110R1008/L46-667 – 141.99


  7. Programmable Thermostats Will Save Money

    November 17, 2012 by admin | Category: Energy EfficiencyTags: , , , | Comments (0)

    Homeowners are constantly striving for ways to lower their energy costs and improve energy efficiency. Between rising gas prices and the overwhelming call to action by the green movement, it’s hard to ignore your energy bill. While many want to make an environmental difference, often these options are more expensive and difficult to implement. Programmable thermostats, on the other hand, are a quick, easy, and incredibly convenient way to hop on the green train.

    Costs for Programmable Thermostats vs. Energy Bill Savings

    Before we get into the convenience factors of programmable thermostats, let’s talk price tags. For a programmable thermostat, all you’ll need to buy is the actual thermostat, which will range from $50 to $200. This is chump change compared to replacing your furnace, installing new windows, or switching out your appliances for energy-efficient options. Although these are all good ways to lower your energy bill, there is usually a large price tag attached. Whereas with programmable thermostats, the cost is small and the savings are big. About 15 percent per year. You can do this simply by turning back your thermostat by 10 to 15 percent for eight hours a day. These gadgets make this easy.

    Convenience Factor: Heat and Cool What You Want, Where You Want

    Besides cutting down your energy bills, programmable thermostats add a significant convenience factor to the comfort of your home, and essentially save energy without you lifting a finger (or actually, by you only lifting a finger). Essentially, you are customizing how you heat or cool your home. So turn down your heat while you’re at work all day, and have it set to kick back on an hour before you return. That’s eight hours of lowered energy, and your home will still be nice and toasty upon your arrival. Also, most people prefer a cooler environment while they sleep. They curl up under a blanket, which leaves the necessity for cranking the heat a lot lower than the waking hours. With a programmable thermostat, lower your heat from an hour after you go to bed until an hour before you wake up. You’ll never know the difference when your feet hit that bathroom tile at sunrise. These hours really start to add up and shave off both wasted energy and unnecessarily high energy bills.

    The Quiet Killers

    There are probably rooms that you don’t use on a daily basis. A guest room, for example, often gets heated with the same ferocity as the rest of the house with no one to occupy it. Maybe you don’t use your finished basement every day. Programmable thermostats give you the option to turn off the heat in these unused areas of your home until it is necessary. This includes your entire home while you’re away on vacation. Press the “hold” button, or program your heat to kick back on a few hours before you return.

    In some cases, having several thermostats is useful if you have special needs. If you have a wine cellar, for example, and need to keep it at the perfect 55 degrees, then you could set up a thermostat set for that space. There are a lot of options out there to really customize your home’s heating and cooling plan.

    Words to the Wise

    While there are many benefits to programmable thermostats, there are a few things to keep in mind.

    Many models have a variety pre-programmed settings to choose from. If that is the case, it is better not to override these settings and make you own because you could end up using more energy.

    If you have a heat pump system, you may require a special kind of programmable thermostat to maximize your energy savings. It’s best to talk to your HVAC specialist to figure out what will work best for your home.

    Make sure that your air conditioning and furnace filter is clean. If your system isn’t working properly, check to make sure that the filter is clean because that could be causing your problem.

    These types of thermostats won’t lessen the load on an old furnace or heating and cooling system. It will merely limit the time that it is used. Your heating system will work the same as it always has, the timing will just be different.

    The bottom line is that there is a lot of value associated with installing a programmable thermostat. You can ensure maximum comfort by personalizing your heating system to your preferences, while saving money in the process. Not bad for a quick switch.



  8. How to Remove a Clog and Maintain an Air Conditioning Drain Line

    November 14, 2012 by admin | Category: Educational, Helpful, InformationTags: , , , | Comments (0)

    One of the most common reasons an air conditioning service technician is called is the condensate drain line has clogged. In most cases this is a huge waste of money. The fix is often simple and special tools are not required. To make this type of service call worse, a backed-up condensate drain line is an avoidable problem. Simple maintenance twice a year keeps even the most used air conditioning condensate drain line from getting a clog.

    Over time sludge forms in an air conditioner’s drain line. This happens because the normal current from condensate is not enough to flush the line. Tiny particles form along the bottom of the long horizontal parts of the drain line. Once in a while, some sludge will break free and travel to a restriction, where it will settle. Once enough sludge particles collect in one spot, a clog is created. Then the water will back up into the air conditioning drain pan. After the pan is full, water will overflow into the house. This is when most homeowners notice the problem.

    Turn the air conditioner off at the thermostat. There is no reason to add more water to the problem. Take the panel off of the inside air conditioning unit where the evaporator coil is. Two copper lines and the drain line connect to the evaporator coil. Inspect the drain pan. If the drain is blocked, the pan will be full of water. Use a wet/dry vacuum to clean the drain pan. Place a rag over the spot where the drain line enters the pan. This will help keep the mess to a minimum later.

    Find where the condensate pipe exits the house. This is usually near the copper lines that connect to the outside air conditioning unit. Follow these lines back to the house. Look for a plastic pipe. It is usually one inch in diameter (black, grey or white). You may need to dig a small hole in the ground near the spot where the copper lines enter the house to find it. If the pipe stops underground, then this is the problem. Clean the dirt out of the end of the pipe, add a short piece of pipe and a 90-degree fitting to get the end of the pipe out of the ground. If the condensate line is not at the air conditioning unit you must walk around the house to find it. Look for a plastic pipe that sticks out of the ground for no apparent reason or a wet patch of dirt.

    There should be a 90-degree fitting at the end of the condensate drain line. This fitting should not be glued on. Remove the fitting. Often this is the place where the clog forms. If so, removing the elbow releases the restriction and the sludge will flow freely. Use a wet/dry vacuum to stuck the sludge from the pipe. In most cases, this will completely free the drain. For extreme cases a hose will be needed. This is why you put a rag in the inside unit. Turn the water hose on. Fold the hose near the drain line to stop the water. Place the end of the hose against the end of the condensate line. Release the water for ONLY ONE SECOND. Allow the water to exit the pipe. The clog should break free. If not, repeat this step. Go inside, remove the rag and add water to the drain pan. Water should flow freely to the outside. When the blockage is free, reinstall the front panel of the inside unit and the elbow on the drain line outside.

    Air conditioning condensate drain lines should have maintenance perform at least once per year, twice is better. This is a simple process. All that is needed to be done is pour 1/2 to 1 gallon of warm water down the drain. A lot of air conditioning systems have a T-fitting near the air handler. Open the top of the T-fitting and slowly pour the water down the drain. If your system does not have the T-fitting, then you must remove the evaporator coil cover to access the drain. Pour the water into the pan.

    For more information, visit Factoidz:Air Conditioning Condensate Drain Cleaning and Maintenance


  9. What To Do if Your Air Conditioner Freezes

    November 2, 2012 by admin | Category: Educational, Helpful, InformationTags: , , , , , | Comments (0)

    No matter how diligent you are about replacing your air conditioner filters and having regular air conditioner maintenance, there is still a chance that your air conditioner could freeze up during the summer. Before we get into how to fix the problem of your air conditioner freezing up, let’s take a look at what could cause your air conditioner to freeze up in the first place.

    What makes an air conditioner freeze?

    There are three main things that can cause an air conditioner to freeze up:

    Lack of air flow – this is the most common reason that many air conditioners freeze up. Dirty air filters or undersized ducts can limit airflow, causing the temperature of the cooling coil to drop to below freezing. Usually, changing the filters is enough to fix the problem. However, if your air conditioner is freezing up due to undersized ducts, the problem is a result of weakened airflow causing humidity in the air to build up and freeze on the coil.

    Refrigerant leaks – the amount of refrigerant in your air conditioner has to be carefully controlled if you want to keep your air conditioner running effectively. Too much, or too little, refrigerant in your system could cause your air conditioner to freeze (or not provide enough cooling).

    Outdoor temperature – when it gets especially cold at night, there is a chance that your air conditioner could freeze up. Air conditioners don’t do well when temperatures are below 60 F – if temperatures dip this low, turn off the AC and open the windows to save some energy!

    What To Do if Your Air Conditioner Freezes

    The steps you should take to fix your air conditioner if it freezes depend on the reason why it froze.

    If your air conditioner is frozen, turn it off immediately and let it defrost – this will prevent any serious damage to the system. Next, check all the air filters in your home to see if they are dirty or blocked. If they are, clean or replace them. Check back in 24 hours – if there is no more ice on your compressor, changing the filters solved the problem.

    If it’s a lack of refrigerant that has caused your air conditioner to freeze, it’s best to talk to an HVAC contractor. They will know the exact level to set your refrigerant at to ensure optimal air conditioner operation. In addition, if your air conditioner is freezing due to a refrigerant leak, they will be able to fix the problem. There’s also the chance that your defrost timer is on the fritz.

    If your air conditioner is freezing up and you don’t know why, call the experts at Magnolia Heating & Air Conditioning. We can provide air conditioner repair in Maryland, Virginia and Washington, DC to make sure your air conditioner stays healthy and efficient all summer long.

    For more information, visit Magnolia Heating and Air Conditioning


  10. About HVAC Zone Control Dampers

    October 31, 2012 by admin | Category: InformationComments (0)


    About HVAC Zone Control Dampers

    By Diane Dilov-Schultheis
    About HVAC Zone Control Dampers thumbnail

    HVAC stands for “heating, ventilating and air conditioning.” It is often simply called “climate control.” An HVAC zone control damper is a plate or control device that can adjust or prevent airflow to a specific zone in a duct. It is used for both heating and cooling in homes and businesses.

    1. Significance

      • HVAC zone control dampers provide total control concerning which rooms receive heat or air conditioning and how much is delivered at any given time. You can reduce energy consumption and save money from utilizing them in your climate control system. The more areas that include zone control dampers, the bigger the energy savings.


      • HVAC zone control dampers divide a home or building into separate areas. This could be a single room in a home or an entire floor in a house or office building. The dampers are connected to a zone manager that can be programmed to control the temperature of each area individually. They prevent or reduce the use of heating or cooling in sections that according to patterns of use.


      • There are two types of HVAC zone control dampers. One is round and the other is rectangular. The type needed depends on your duct style. You can further divide them by dampers powered by electricity and those powered by compressed air. The second type is utilized in larger buildings. HVAC zone control dampers are also available in “normally open” or “normally closed,” depending on their intended location.


      • A complete climate-control heating and cooling system requires a number of elements to function properly. A programmable system controller controls the complete system settings. A specially designed thermostat is another vital part of climate control. The final elements are the actual dampers used to control the flow of air.


      • If you are thinking about installing HVAC zone control dampers, you must be certain to get the correct ones. You will need to know the size of your system (six-inch or eight-inch, for example). You must decide where you want to add control dampers. Select any rooms that are not used on a regular basis. The cost of the parts and installation can differ and should be reviewed and considered.