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Having a Dehumidifier in your Home



You will want your home to be cool and comfortable during the summer. Keeping your air conditioner properly maintained is important. You will also want to remember to change the air filter on a regular basis as well. This is because over time the filter will capture dirt and dust that floats in the air of your home. If you are not sure of the proper filter-changing schedule, make sure to contact us. We can advise you on the correct schedule.

Dehumidifier helps Remove Humidity

To help keep the air quality the best it can be, consider getting a dehumidifier. This removes the dampness and humidity form the air. This is not only good for comfort, but it also helps prevent damage to items in your home. If the air has too much humidity, furniture may get damaged. You may also start to notice that the wood warps or becomes uneven due to the heat.

Reducing Mold & Mildew

The dehumidifier can also help prevent the growth of mold and mildew that would be in your home. They like to grow in wet or humid climates. Mold is associated with several breathing difficulties and health issues. This can include asthma or allergic reactions. A dehumidifier can also help prevent musty odors that are in the home. This is typically caused by high humidity and mold. The problem is odors can be absorbed by some of the surroundings. These can include fabrics, walls, furniture, and clothing. A dehumidifier can remove these unpleasant odors, while also removing the humidity levels from your home.

Be Aware of Issues

If you ever have any questions about a dehumidifier, make sure to contact us. We can advise you on the options you have and what is best for your home. When you have a dehumidifier you can keep the air cool, clean, and enjoy the comfort of your home. This makes breathing the air easier and healthier this summer.

Summer Maintenance Helps the Air Conditioner



In the summer, the heat and humidity may start to affect the comfort of your home. You will want your home to be cool and comfortable. This helps when the outdoor air can be warm and humid. You will want to make sure that the HVAC system is always operating the best that it can be. If there is an odd noise or sound coming from the air conditioner, you will want to make sure it is repaired as soon as possible.

Inspect the Filter

You will want to make sure that the filter is in the best condition possible. Dirt and dust can collect on it with time. When the air is re-circulated through the home, the filter is designed to capture these pollutants. If the filter is too clogged, it will decrease the efficiency of the unit. You will want to check the filter on a regular basis. When recommended, you should replace it. Anytime the filter is clogged significantly, make sure to replace the filter. We can also advise you on when the filter will need to be cleaned or replaced.

The Thermostat

If you notice that the actual air temp is different than the set temperature on the thermostat, it can mean it is not efficient. Contact us and we can inspect the thermostat for you. Sometimes it is not connected properly, or the thermostat gives a false reading. By having is properly inspected, we can determine what the source of the issue might be. If a new thermostat is needed, we can also advise you on which one might be right for your home.


Besides the thermostat, we can also inspect the ductwork for any signs of damage or cracks. If there is damage, it can mean that the cold air that is produced will be starting to leaking out. The whole HVAC system and air conditioning unit will work more efficiently, with the maintenance that is done. If you are not sure how often this should be, make sure to contact us and we can set up and appointment.


Why the Air Conditioner is Not Efficient



If your air conditioner seems to be running constantly, there are a few quick things you can do to either fix find the source of your problem. There are numerous reasons why your air conditioning system may seem to be running non-stop. Some of the reasons may indicate a problem with your system. Other issues may alert you to things that you can take steps to correct.

Unit Too Small

If your central air conditioner is too small, then it is going to have to work harder to cool your home. Over time, this will increase the wear and tear on your unit and reduce its life. The desired coolness may also never be reached in your home. Also, the system breaking down could happen.

Unit Too Large

If your system is too large, it will not work properly either. It will not effectively remove moisture from the air in your home. This will result in an output of moist, clammy air. It will actually have shorter run times than it should and use excessive amounts of electricity, resulting in higher utility bills.

The size of your ductwork should be relative to the size of your air conditioning unit. If your ducts are the wrong size, they may not be able to handle the airflow or distribute cool air efficiently to all parts of the home. 75% of air conditioning problems can be resolved by the correct method of installation in combination with the right sized air conditioning unit.

Check the Air Filter Regularly

If you have not changed the filter in awhile, it’s probably dirty restricting air flow. This will cut down on the amount of cool air your air conditioner can produce, which in turn will make your air conditioner seem to run more through the day. When your air filter is clogged, the air handler must work harder to compensate. A dirty filter makes your system work harder causing it to overheat. Cleaning the debris that builds up on your filters will aid with the flow of air. Clean or replace your filters once a month or as recommended by the manufacturer. Without enough air flowing over the coils, the system can’t remove humidity and cool the air to the set temperature, so it will keep running when it should not be.


Variable Speed Air Conditioner

Variable Speed

Most American homes with central air conditioning use a single stage compressor. These compressors were standard for decades. They also continue to be in the majority of AC units today. A single stage compressor turns on when indoor temperatures exceed the temperature setting on your thermostat. If you set the thermostat to 75 degrees, the air conditioner will run anytime indoor temperatures hit 76 degrees. After the air conditioner cools the house back to 75 degrees, it will turn off again. Single stage compressors always operate at 100% capacity. They will turn themselves on and off continuously throughout the day, keeping your home cool.

What is Variable speed

Variable speed compressors work differently. In order to maintain an indoor temperature that matches the setting on your thermostat, they operate continuously at less than 100% capacity. Sometimes as low as 25% or 30% capacity. They will run for much longer cycles than single stage air conditioner units. In summertime, they might run for all or most of the day. Variable speed compressors blow a smooth, steady stream of cold air into your home to maintain the desired indoor temperature, rarely turning themselves off.


A variable speed compressor’s longer run times dehumidify your home more effectively than the relatively brief cycles of a single stage unit. Relative humidity increases whenever the air conditioner is not on. This makes you feel hotter and more uncomfortable. This is especially acute when an air conditioner is oversized. Most people deal with this problem by lowering the temperature on their thermostat.

A single stage compressor will cool your home with cold air before it turns itself off. Then it turns on again when the indoor temperature increases. Most of your air conditioner’s electricity draw occurs when it turns on, not while it’s running. In the summer, a single stage compressor turns on and off a lot. This process is called short cycling.

If you are worried about indoor air quality, you can choose a variable speed unit. A two stage or variable speed unit can help purify the air circulating around your home, resulting in healthier conditions for you and your family. Since they dehumidify indoor air more effectively than a single stage unit, a more efficient system helps you in several ways. It can eliminate mold growth in bathrooms and kitchens. Also, it can prevent the proliferation of dust mites. The unit can create conditions that are inhospitable to insects. Since variable speed units run more frequently, they also filter your indoor air more effectively. More air is cycled through your return ducts, which results in a lower volume of air contaminants.

Having an Air Purifier in your home

air purifier


Since you spend a majority of time indoors, good quality air is important. This is why it is necessary to invest in an air purifier. The air purifier can help allergy suffers by removing allergens in the environment. If you need to place the air purifier in your home, the bedroom is the ideal place. This is because you will spend a lot of time in this room. The air purifier can help to remove particles that are lighter than air. This would include pollen, mold spores, pet dander, and dust. The air purifier will draw air into the unit. It will then filter the air through the filter. The clean air will be released back into the home. The more air exchanges the air purifier has per hour, the better air quality that will be in the room.

Removing pollutants

The pollutants of volatile organic compounds can be found in numerous household products. These can include things like paints, varnishes, cleaning supplies, or disinfectants. If you notice the ingredients of benzene, chloride, formaldehyde, or ethylene, it is an indication these could be in your home. This can result in symptoms of irritation to the eyes, nose, or throat. It could also cause extreme headaches and nausea with time.


Having an air purifier can help to remove harmful airborne particles in the air. These can include particles such as pet dander, dust mites, pollen, fungi, mold, or even tobacco smoke. These can contribute to allergy or asthma attacks. Investing in a HEPA air purifier, you can help to eliminate the airborne allergens in the home.

 Get rid of Odors

An air purifier can also remove household odors or gases. These could include cooking odors, various toxins, or gaseous pollutants. It can even help to remove the smell of any pesticides or aerosols that might be in the home. Carbon filters are the most ideal for capturing gases and odors that might be too small to be captured by a HEPA filter.


If you are not sure what type of air cleaner is right for your home, make sure to contact us. We can advise you on the options and what one is best for your home.


Air Conditioner Inspection List

If you neglected a spring checkup, your air conditioner may not be cooling as well as it could. A year’s worth of dirt and debris clogging the cooling fins can lower the efficiency. Also a low coolant level, a dirty blower fan filter, and a number of other simple problems can significantly reduce the efficiency of the condenser and wear it out faster.

Outside Unit of AC

The outside unit, called the condenser, contains a compressor, cooling fins and tubes and a fan. The fan sucks air through the fins and cools a special coolant. Then the compressor pumps into the house to the evaporator through a copper tube. The coolant chills the fins and tubes of the evaporator. Warm air drawn from the house by the blower passes through the evaporator and is cooled and blown through ducts to the rooms in the house. The evaporator dehumidifies the air as it cools it, and the resulting condensation drains off to a floor drain through a tube. The blower unit and ducting system vary considerably depending on whether you have a furnace or a heat pump. It may be located in the basement, garage, furnace room or attic.

Clean the System

Clean your outdoor unit on a day that’s at least 60 degrees outside. That’s about the minimum temperature at which you can test your air conditioner servicing to make sure it’s working. The condensers usually sit in an inconspicuous spot next to your house. You will see two copper tubes running to it, one bare and the other encased in a foam sleeve. If you have a heat pump, both tubes will be covered by foam sleeves. You can also contact us and we can inspect the system for you. The fins are fine metallic blades that surround the unit. They get dirty because a central fan sucks air through them, pulling in dust, dead leaves, and dead grass. The debris blocks the airflow and reduces the unit’s cooling ability.

Vacuum the fins clean with a soft brush because they are fragile and easily bent or crushed. On many units you’ll have to unscrew and lift off a metal box to get at them. Check your owner’s manual for directions and lift off the box carefully to avoid bumping the fins. Occasionally you’ll find fins that have been bent.

Remember the filter

Also remember to inspect the filter on the air conditioner. This will help the air quality improve in your home. By having the filter collect the dirt, dust, and other pollutants, you will have the best air quality possible. If you are not sure how often to check the filter this summer, make sure to contact us and we can advise you on a schedule.

Why do you need to Change the Filter?


Air conditioning filters are needed because they keep dust out of the home and provide clean, cool air. You will want to make sure that the system is well maintained so it works efficiently. If you are not sure how often to clean or check the filter, make sure to contact us. We can advise you on the schedule you need for your home and air conditioning system.

Keeping the Filter clean

The air conditioning coil is designed with closely spaced fins that are pressed on the actual refrigerant tubes. These fins collect a lot of dust and dirt. An air conditioner’s filter is what prevents dust and grime from building up on these coils, besides improving indoor air quality as well. Filters come in a variety of sizes and can be either permanent or washable.

Old and dirty air filters in an air conditioner will have a negative impact on the performance of the system. This causes it to cool ineffectively and affect the quality of air inside the room or house. This will put people with asthma and allergies at greater risk, as well as waste energy and money.

Issues with dirty filters

Dirty and clogged air conditioning filters lower the energy efficiency of an air conditioner. The energy that is wasted will pollute the environment and add to the greenhouse gas emissions, further compounding the problem of global warming. Clogged air filters will cause the unit to pull more energy while delivering less cooling. This imbalance will have a negative effect on the overall environment.

Cleaning the air conditioning filters regularly will not only improve energy efficiency but also speed up the cooling process. It will also reduce the need to have the air conditioner on for long periods of time. This would help in reducing the power bill and enable homeowners to save on power and maintenance of the air conditioner as well.

Clean air

Clean air conditioning filters help provide cleaner indoor air. It also reduces the incidence and occurrence of lung and breathing disorders, such as asthma, allergies and related diseases. Indoor air quality plays a major role in your respiratory health. Keeping air conditioner filters clean and dust-free will help improve the indoor air quality and keep the home allergen-free.


Air Conditioner System Maintenance


One of the most common air conditioning issues is improper operation. If your air conditioner is on, be sure to close your home’s windows and outside doors. For room air conditioners, isolate the room or a group of connected rooms as much as possible from the rest of your home.

Other common problems with existing air conditioners result from faulty installation, poor service procedures, or lack of maintenance. Improper installation of a central air conditioner can result in leaky ducts and low airflow. Many times, the refrigerant charge does not match the manufacturer’s specifications. If proper refrigerant charging is not performed during installation, the performance and efficiency of the unit is impaired.

Refrigerant Leaks

If your air conditioner is low on refrigerant, either it was undercharged at installation or it leaks. If it leaks, simply adding refrigerant is not a proper solution. We can fix any leak, test the repair, and then charge the system with the correct amount of refrigerant. Remember that the performance and efficiency of your air conditioner is greatest when the refrigerant charge exactly matches the manufacturer’s specification. Also, refrigerant leaks can also be harmful to the environment.

Poor Maintenance

If you allow filters and air conditioning coils to become dirty, the air conditioner will not work properly, and the compressor or fans are likely to fail prematurely. Noticing an issue should mean contacting us as soon as possible. By doing so, you can help prevent other issues from forming.


The compressor and fan controls can wear out, especially when the air conditioner turns on and off frequently, as is common when a system is oversized. Because corrosion of wire and terminals is also a problem in many systems, electrical connections and contacts should be checked during a professional service call.

Room air conditioners feature a thermostat sensor. This is located behind the control panel, which measures the temperature of air coming into the evaporative coil. If the sensor is knocked out of position, the air conditioner could cycle constantly or behave erratically. The sensor should be near the coil but not touching it; adjust its position by carefully bending the wire that holds it in place.

When it’s humid outside, check the condensate drain to make sure it isn’t clogged and is draining properly. Room air conditioners may not drain properly if not mounted level. Make sure to contact us, and we can inspect the HVAC system for you.


The Importance of Preventative Maintenance

Preventative maintenance


Preventative maintenance is always needed to help ensure the efficiency of the HVAC system. The air conditioner’s filters, coils, and fins require regular maintenance for the unit to function effectively and efficiently throughout its years of service. Neglecting necessary maintenance will result in a decline for the air conditioning performance.

The Filter

The most important maintenance task that will ensure the efficiency of your air conditioner is to routinely replace or clean its filters. Clogged, dirty filters block normal airflow and reduce a system’s efficiency significantly. With normal airflow obstructed, air that bypasses the filter may carry dirt directly into the evaporator coil and impair the coil’s heat-absorbing capacity. Replacing a dirty, clogged filter with a clean one can lower your air conditioner’s energy consumption up to 15%. Some types of filters are reusable, but others must be replaced. Filters may need more frequent attention if the air conditioner is in constant use. Also if the filter is subjected to dusty conditions or you have fur-bearing pets in the house.

The Coils

The air conditioner’s evaporator coil and condenser coil collect dirt over their months and years of service. A clean filter prevents the evaporator coil from soiling quickly. In time, however, the evaporator coil will still collect dirt. This dirt reduces airflow and insulates the coil, reducing its ability to absorb heat. To avoid this problem, check your evaporator coil every year and clean it as necessary. Outdoor condenser coils can also become very dirty if the outdoor environment is dusty or if there is foliage nearby. You can easily see the condenser coil and notice if dirt is collecting on its fins. The aluminum fins on evaporator and condenser coils are easily bent and can block airflow through the coil. Air conditioning wholesalers sell a tool called a fin comb that will comb these fins back into nearly original condition.

At the start of each cooling season, inspect the seal between the air conditioner and the window frame to ensure it makes contact with the unit’s metal case. Moisture can damage this seal, allowing cool air to escape from your house. In the winter, either cover your room air conditioner or remove and store it. Covering the outdoor unit of a central air conditioner will protect the unit from winter weather and debris. If you ever notice an issue, make sure to contact us so we can inspect the system for you.

Furnace issues to be Aware of

furnace issues


Furnace issues can vary in seriousness. No matter what issue you notice, make sure to schedule an appointment. We can come and look at the furnace. This way we can repair it before a larger issue develops. Even if you might think it is nothing, it is always best to have it looked at.

Change the filter

Dirty filters may not seem like a big concern, but they are extremely significant for the efficiency and performance of your furnace. Since the air in your home is constantly flowing through your air filter, dirt and dust is picked up every time the system is running. These airborne particulates can quickly clog the filter, affecting both airflow and air quality. When that happens, your furnace will find it more difficult to work efficiently. In fact, clogged filters may even cause the system to shut down. This is a safety mechanism on newer systems to prevent further damage to the system due to dirty air and lack of airflow. If your furnace won’t start, the first thing you want to check is the air filter. Often, just by cleaning or replacing your air filter, you can get the system running again.

Check the pilot light

When the pilot light electric ignition goes out, it can be an issue. When these parts get damaged, it will be difficult to keep your home or business warm. So be aware and seek the help of professionals once you encounter problems. Remember, a malfunctioning pilot light may be caused by thermocouple issues, drafts, or clogs in the heating system. In order to maintain an efficient furnace, you will want to make sure your pilot light is healthy. If you smell gas, turn off your HVAC system, evacuate the home, and call your local gas company.

Properly working thermostat

A faulty thermostat may lead to problems with the furnace’s fan or may also affect your home’s comfort levels. The furnace may not be able to warm up your home when the thermostat is not working. You may need to change the batteries. To avoid false reading, make sure your thermostat is located away from all heat sources. This includes direct sunlight, heating vents, cooking equipment, space heaters, and lamps. If you need to relocate your thermostat, contact us.

If your furnace turns on and off quite too frequently, it may indicate a clogged filter. It may also mean a wrong thermostat setting or improper airflow. After checking things like dirty air filter and thermostat settings, have us check the appliance for you. If your furnace’s blower continuously runs, there may be a problem with the limit switch. If the problem is confirmed, that part should be replaced immediately. Furnace issues should always be taken seriously, so make sure to contact us.

K&S has been your trusted Heating, Air Conditioning, Plumbing and Electrical partner since 1988.

Count on our unmatched Experience and the Quality you know from K&S

4205 Highway 14 West

Rochester, MN 55901

(507) 282-4328

6513 Cecilia Cir.

Edina, MN 55435

(952) 697-4328

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