Frequently Asked Questions

How do I know if I have an existing warranty on my furnace, air conditioner or HVAC system?

Find the label on the outside of the element of your home comfort system for a manufacture date. Equipment less than five years old may have a warranty, but also may not subject to the manufacturer. Warranty terms and conditions change by manufacturer and the installing company. Knochelmann Service Experts Heating & Air Conditioning can verify the warranty status of your heating and cooling system via System Inspection. We also offer a Platinum PLUSTM Protection Plan for residential heating and air conditioning systems, regardless of the equipment age or manufacturer warranty status.

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Is sound an issue for heating and air conditioning?

Yes. Noisy heating and cooling equipmentcontribute to sound pollution.Even though no financial savings are tied to a quieter home environment, the sound rating of a cooling system can have a considerable effect on comfort and enjoyment of your Sharonville home. The sound level of an air conditioner or heat pump depends on a number of things, such as the unit, and whether the compressor is insulated or not can add to the amount of noise it makes.

Although many heating and cooling systems made today are quieter than ever before, it's a safe  notion to compare sound ratings when assessing a new air conditioner or heat pump, particularly if the equipment location is near bedrooms or living rooms.

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What is a Precision Tune-up and how much does it cost?

Besides the visual check provided with our System Inspection, a Precision Tune-up also consists of a complete maintenance cleaning and lubrication of the heating or air conditioning equipment components. Learn more here about Knochelmann Service Experts Heating & Air Conditioning’s Precision Tune-up steps . The cost of a tune-up is seasonal, and printable coupons with seasonal discounts on tune-ups are also usually available on our Coupons page.

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What's causing my duct work to pop when the furnace starts or stops?

A popping noise is a typically sign of an under-sized duct design. It may be caused by greater air flow than the duct work is able to manage. Have a qualified company analyze your home's ventilation system for proper design and provide a written recommendation. Improper duct work layout can create several ventilation and air quality problems, including: 

  1. loud popping
  2. higher energy usage
  3. lowered life expectancy of the system
  4. uneven heating & cooling throughout your home
  5. damaged compressor in hotter months
  6. overheated unit in the heating season
In addition, if your ductwork is incorrectly sized you may have other problems, such as leaky ducts and poor layout that restricts airflow. In humid environments this can promote mold growth within your ductwork.

 

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When changing the outdoor equipment, should the indoor unit also be substituted?

The answer is, most likely yes. Here's why.

Matched System Design: All air conditioner and heat pump outdoor units are precisely created to work with a matched indoor unit for peak efficiency and performance. The effect of this matched equipment is a coordinated, top-performance team that ensures dependability and efficiency. Air conditioner and heat pump outdoor units may "work" with indoor units other than those for which they have been precisely fabricated; however, the result would be a definite compromise in system performance.

Design Advances: Through the years, indoor blower coil units have undergone many design advances — especially in the areas of air handling performance, filtering efficiency and operating sound levels. The latest outdoor unit will also comprise the latest design advances.

Higher Cooling And Heating Efficiency: The cooling and/or heating efficiency ratings that are posted for an air conditioner or heat pump are based on their performance as matched systems. While changing only the outdoor unit may result in improved efficiency when looking at your old system, but efficiency will suffer from what it was designed to be, and your savings will be lower than with a matched system.

Equipment Age: If an air conditioner or heat pump is 10 years old or more and needs to be replaced, the indoor unit is likely just as old and has been subjected to the same amount of constant operation over the years. Replacing both units means you won't have to replace the indoor unit in just a short time… you'll have many years of efficient service from both units.

New Warranty: A new unit also gives you a new product warranty. Replacing the indoor unit together with the outdoor unit results in peace of mind, knowing that the new warranty covers the entire system for the same period of time.

A Bargain: At first glance, substituting only the outdoor air conditioner or heat pump may appear to be a deal. But, when you consider the lower cooling and heating efficiencies, decreased reliability and high cost of ownership that results, it's not such a bargain. Replacing an entire system may cost more, but you benefit from efficiency, reliability and comfort for years into the future.

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Why don't you charge by the hour?

Similar to a value menu at many restaurants, charging a flat rate cost instead of an hourly fee provides more value for our customers because all costs are included, the pricing is up-front, and it does not adjust. Regardless of the cost of parts or how much time it takes to finish the repairs, the price will not change. This is just one reason why Knochelmann Service Experts Heating & Air Conditioning is the most trusted name in Sharonville.

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Why is it important to have regular maintenance on my home comfort system?

You probably wouldn't purchase a brand-new car and expect to not once have to put air in the tires, change the oil and investigate any abnormal noises. Your home comfort system is similar to your car’s engine; it’s a mechanical device with a motor, electrical components... and even fuel. So it is essential to have routine maintenance of your home comfort system by a qualified technician. If not maintained properly and routinely, even the best heating and air conditioning equipment could cause problems and become less 'fuel' efficient over time.

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Why is my AC system freezing up?

There are many things that can prompt your HVAC system to freeze up; most of them usually need to be corrected by a professional technician. Ensuring the air filter is clean or replaced and confirming the airflow is not restricted are about the only tasks a homeowner should safely identify or handle themself.

Low refrigerant: In some cases, freezing up is caused by a leak in the refrigerant lines. Weak solder joints, friction from piping rubbing or vibrating against an object, leaking valves or loose fittings can cause leaks. How long your system has been operating and the type and location of the leak govern the decision whether to have the system repaired or replaced.

Dirty evaporator coil: Over time, the evaporator coil will become dirty. On these occasions, the results are similar to those of having a dirty filter. Increasingly you will lose airflow, slowly enough that you probably would not realize it until it freezes up or is not cooling adequately. You will need to contact your local Service Experts sales and service center to remedy the problem.

Defective blower motor or relay: A blower motor running at an improper speed or not running at all can cause freezing. It can also be intermittent, starting at full speed and slowing down after it heats up. Or a relay could cause it to start one time and not the next. In either scenario, you will need to contact your local Service Experts sales and service center to correct the problem.

Should you learn that your system was freezing due to a dirty air filter, after replacing or cleaning the filter, you can speed up the thawing process by turning the system off and then turning on only the fan. If you have a heat pump system, you can try turning the system to heating mode until the ice has melted. After the ice has melted, switch the system settings back to normal. If the system refreezes, contact Knochelmann Service Experts Heating & Air Conditioning in Sharonville to fix the problem.

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What is a Zoning System for a heating and air conditioning system?

Zoning Systems split your home’s duct work into separate comfort areas, enabling independent temperature control in distinct areas that need specific temperature conditioning.

For example, a family room with large bay windows may stay too hot in the summer and feel too cold in the winter. A Zoning System will send more conditioned air to this large, sun-drenched area to help compensate for the heat gained or lost through the windows. A different example of areas that might benefit from Zoning might be a nursery, home theater or music studio, where different temperatures may be needed in each room for the comfort and enjoyment of the people occupying these rooms. Today's families have different lifestyles and comfort needs. Perhaps you have a home office that needs extra conditioning during the day and none at night. Or you only use the upstairs or back bedrooms when guests visit. No matter what your needs, a zoning system can keep each area of your house at the perfect temperature for you and each family member.

Knochelmann Service Experts Heating & Air Conditioning provides free estimates and a complimentary consultation on Zoning Systems, call 859-905-0834 today if you think a new Zoning System might be right for you.

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859-905-0834 today if you think a new Zoning System might be right for you.">
When should I install a Zoning System?

If you are changing your Sharonville area home air conditioner, furnace or heat pump, it is an excellent time to also install a new zoning system to solve hot and cold spots or special temperature needs in the home. When your new comfort equipment is complimented by a zoning system, your family benefits from customized temperature control in each zone.

Zoning is also excellent for new homes since the system can be installed during construction. If you are buying a new home, check with your builder about a zoning system. It could make the difference between just enjoying your new house and being truly comfortable in it.

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Are all HVAC air filters the same?

No, HVAC air filters vary by quality and size, and some have features that others don't. Mostly we recommend using the filter your HVAC manufacturer recommends pairing up with your installed equipment, but you might be tempted to try some other filter type for convenience or to remove additional pollutants from your home.

Filters have MERV ratings, which range from 1-20. MERV means "minimum efficiency reporting value". A higher MERV rating means fewer particles pass through, and it captures finer particulates. This sounds fantastic, and it can be, but a filter that stops finer dust and debris particles will also stop up more often, and pressure on your system will increase. If your system has not been designed to work with this kind of filter, it can actually reduce your airflow within your house, affecting your comfort and energy bills. So what should you look for? Unless you're buying for a hospital, you definitely don't need a MERV rating above 13. Truth be told, most residential units are specifically designed to work with a filter with a MERV rating below 13, and frequently you will find that more expensive systems have been made to function with a MERV rating of 8 or 11. All filters with a MERV rating of 5 should block most of the everyday nuisances people care about such as pollen, pet dander, and lint. While some filters claim to be able to snag mold spores, we recommend removing any mold from your house you find, instead of trying to delay the issue with a finer filter.

Often the packaging indicates how often your filter should be replaced. There are one-month filters and there are 3-month filters. You also have filters that are made flat like screen windows, and you have some that are pleated with supporting wire. In our experience, the accordian style filters weather better, and are worth the extra pennies.

You may also consider washable filters, also called reusable filters. Some homeowners like the environmentally friendly aspect of it, because they don't add to a wasteyard, and others believe it's more convenient to simply yank out the filter and wash it off rather than making a run to the local hardware store for a filter of the correct size. These filters are often designed to work several years and will save you cold cash over time, though they are pricier initially. However, washable filters do need to be dried out thoroughly before returning it back to prevent mold growth in your vents. In addition, most washable filters reportedly have a MERV rating between 1 and 4, and they lose their efficiency over time. Some washable filters have been built with new tech, such as electrostatic air filters, that are meant to effectively improve the MERV rating.

Finally, filters are made of different materials. Fiberglass filters are what we see most often, and are the disposable type. Polyester and pleated filters are known to catch more debris, but also decrease the airflow in your residence. And there are high efficiency particulate arrestance filters, or you might recognize the acronym HEPA. While you might be tempted to buy a HEPA filter, just consider that's like putting a MERV 16 filter in your HVAC system and it's very unlikely that your system was constructed to handle that kind of resistance.

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Can indoor air be hazardous to your health?

No doubt about it. Exposure to air pollutants can be up to 100 times higher indoors than outdoors. The American Lung Association estimates that most people spend 90 percent of their time indoors, making indoor air quality (IAQ) extremely important. Many common household items contribute to poor indoor air quality. Compounds found in carpeting, furniture, upholstery and drapery fabric constantly emit fumes. Other sources of pollutants can include cleaning agents, paints and personal care products. The tight construction of today's homes also contributes significantly to poor IAQ. Things like weather stripping and storm doors are designed to save on energy costs. However, they also prevent proper ventilation by keeping indoor air in and outdoor air out. The result can be a buildup of contaminants within the home.

Poor IAQ can be attributed to aggravating several health problems. Medical groups report that as many as half of all illnesses are caused or aggravated by indoor air pollution. Pollutants within the home can cause homeowners to suffer from flu-like symptoms such as headaches, nausea and respiratory irritation. Additionally, two existing health problems that can be helped by improving indoor air quality are allergies and asthma. By removing airborne dust particles, the amount of exposure the respiratory system has to them is reduced. Proper ventilation also plays an important role in improving indoor air quality, helping to reduce the concentration of pollutants inside the home.

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How can I know that I have carbon monoxide in my home?

The best method of detection is to use a carbon monoxide detector in your home. A carbon monoxide detector looks a bit like a smoke alarm. It monitors the air for carbon monoxide and sounds an alarm if a specific level is detected. Ideally, you should have a detector adjacent to every living area, centrally located, or on each floor in your home. Carbon monoxide detectors are most effective when used in combination with a maintenance plan. Call 859-905-0834 for a complimentary consultation about purchasing a carbon monoxide detector.

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859-905-0834 for a complimentary consultation about purchasing a carbon monoxide detector.">
How can I eliminate indoor odors?

You may have tried to eliminate indoor odors by spraying air fresheners or lighting candles. Unfortunately, these tactics only mask the odors, they don't get rid of them. These remedies may in fact negatively affect indoor air quality from chemicals that cause allergic reactions or eye irritation for homeowners.

Bacteria, dust mites, animal dander, cat saliva and mold may also be roots of your home's odor problem. One method to purify the air is using germicidal (UV) lights in your home, which helps kill odors and inhibit the growth of biological contaminants, sterilizing surfaces in the HVAC system. They also purify the air, preventing the growth of contaminants. The UV lights are installed to work with your home comfort system.

Sometimes poor ventilation can be attributed to unpleasant odors. Moisture condensation on walls windows and stuffy air are signs of poor ventilation. A qualified Knochelmann Service Experts technician can inspect your home comfort system to determine if this is the situation in your home. The technician can also inform you how you could increase the ventilation system’s ability to correctly circulate and ventilate indoor air.

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How do I choose the right humidifier?

A great way to choose the correct humidifier is by having a home health report performed by Knochelmann Service Experts. Every home is different, and every family is different. So, every humidification need is also different. There are some important factors you should take into consideration when purchasing a humidifier for your home, Knochelmann Service Experts can help you understand and consider these items.

Consider size. A humidifier's capacity, or the amount of moisture it can dispense in a given time, should match your particular household's needs. The capacity is measured as gallons per day of operation. One method that is used to determine the correct-sized humidifier for your home is by multiplying the total floor area in by the ceiling height. We can provide you with this information and additional ways you can determine which type of humidifier will best suit you and your family’s comfort needs.

Consider cost. Consider not only the basic cost of the humidifier, but also operating and maintenance costs. Some brands consume more energy than others, so choosing a model that is right for your home and budget is extremely important.

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How do I know which indoor air quality product is right for me?

Every person and every home entails a different comfort need. The threshold of irritancy and triggers that affect people’s health and comfort combine to determine the proper solutions. High threshold levels may require simple solutions like a better air filter. Low threshold levels may require an air purification system for the reduction of triggers and irritants. With a Home Health Report Card, Knochelmann Service Experts can help you decide which indoor air improvement products are right for you.

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How healthy is my indoor air?

According to studies commissioned by the U.S. Environmental Protection Agency, exposure to air pollutants indoors can be 100 times higher than outdoors. Frequent dusting and vacuuming can help reduce the amount of dust and dust mites present in your home. However, not all airborne particles can be eliminated. Filtration devices can help eliminate particles that are too small to be captured by vacuum cleaning. Some filtration devices include UV light units, air filters, energy recovery ventilators (ERVs), heat recovery ventilators (HRVs) and electronic air cleaners. A Home Health Report Card from Knochelmann Service Experts can help you decide which indoor air improvement options are right for you. To receive a Home Health Report Card and personal air quality consultation Knochelmann Service Experts at 859-905-0834.

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How much water does a humidifier use?

Depending on the type you choose and the size of your indoor area, a humidifier may use from 1.5 to 12 gallons per day when the furnace is operating. The amount that will be used is enough to raise the humidity to your desired level, but not enough to notice a difference on your water bill.

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