Althoff Home Services Blog: Posts Tagged ‘Residential Heating’

6 Items to Check Before Calling for Furnace Service

Wednesday, October 4th, 2017

At Althoff Industries, we make our living helping people keep their families safe and cozy with efficient operating HVAC systems. We have built our business and reputation by providing superior service that prevents and resolves issues, not creates them. It’s why many of our customers trust us for their annual furnace tune-ups in the fall. They know our extensive furnace tune-ups provide peace of mind. But furnace tune-up or not, problems can still occur.

Losing heat can be frustrating in winter weather but that frustration can be compounded when realizing, after the fact, that a problem was simple to resolve on your own. If you live in the Crystal Lake area of Northwest Chicago, before you call Althoff Industries or any HVAC company, here are six items you should check.

  1. Check the thermostat setting. Many families will reset thermostats when they leave for work or retire for the evening. Depending on your thermostat, it is possible a temperature setting gets accidentally way low or even takes the thermostat off of the “heat” setting. Before calling for furnace service, take a close look at your thermostat to make sure it is set properly.
  2. Make sure your furnace has power. Even if you use natural gas, your furnace is reliant on electricity. If that electricity is interrupted, you won’t have heat. It may just be that a circuit breaker got shut off for a variety of reasons. Check the circuit breaker for your furnace and reset it if it is in the “off” position. If it immediately pops off again, call a technician.
  3. Check your furnace filter. If rooms are not being heated properly, it could be because fresh air is not getting into the furnace. A common cause is a clogged or dirty air filter that is restricting air flow. Check your furnace’s air filter. You should be able to see through it when held up to a light. A common symptom of restricted air flow is when a furnace “short-cycles”, going on and off far too frequently to be efficient or to provide adequate heating.
  4. Check the pilot light. Gas furnaces have a small pilot light that should be constantly lit to provide an ignition source for the furnace. This pilot light is usually covered by a small door or metal plate near the base of the furnace, near the base of the base of the heating element. If this pilot light is out, you can try to relight it. This can be done by following the instructions on the on/off/pilot control on the furnace and using an extended barbecue grill type lighter or fireplace length match. Of course, if you have any hesitation about relighting your furnace, call a professional technician.
  5. Take note if your gas service has been interrupted. If your gas supply has been interrupted for any reason, the pilot light will need to be reignited. See tip number 4 above.
  6. Your blower motor may not be functioning. In some cases, furnaces may be producing heat, but that heat is not being dissipated through your home because the blower motor is not working properly. Stand by your furnace and when you hear it ignite, you should shortly hear the start of the electric blower motor. You should feel heat blowing from your vents. If you hear the furnace ignite but don’t hear the blower motor start or feel hot air from a vent, it is likely your blower motor. If you are an exceptional do-it-yourselfer, you may be able to replace the blower yourself. We, however, would suggest calling a professional.

A Few Final Tips Before Calling for Furnace Service in Crystal Lake

Winters can be tough in Crystal Lake and Chicagoland area but before you pay for a service call, take the above steps. You may be able to resolve the issue with a few simple checks. If the above steps are unsuccessful, write down the furnace brand name and model number along with the approximate age of your furnace and relay that to your service company. Let them know the steps you took and your results. This can expedite the service call, potentially saving you money.

If you experience a heating problem and need professional help, we invite you to call us at Althoff Industries. We have over 50 years of experience serving Northwest Chicago and have a highly trained staff of technicians with the latest technology to make sure your repair is done promptly and safely. When it comes to the comfort and safety of your family, trust the experts at Althoff Industries.

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You May Not Have the Correct Furnace Size: What to Look For

Saturday, July 1st, 2017

We recently received what we refer to as a “no heat” call. It was May so it wasn’t a desperation call, thank goodness, but still an issue. We immediately noticed something different upon arrival at the Park Ridge residence. This home had twinned furnaces that combined for a whopping 190k BTUs of heat and they were connected to a 5 ton condenser. As is our normal procedure, we ran the load calculation and determined that the homeowner only needed a single 100k BTU furnace with a 4 ton condenser. The existing system was simply way over-sized. We were able to install a single, much more efficient system, and the sheet metal was a work of art.

The problem is, this is not as uncommon as it should be. We often see furnaces that are over-sized and can only assume the previous installation was done without a full understanding of what was needed or the installer had some extra equipment to sell. There is more of a science to HVAC installations than most homeowners, and apparently some installers, understand.

Calculating the Appropriate Size HVAC Unit

When deciding the most efficient size HVAC unit, an installer needs to consider multiple factors including:

  • Square Feet: Total square feet of the space to be heated/cooled.
  • Weather Pattern: The climate and length of the area’s hot and cold seasons.
  • Manufacturer Recommendations: Consult manufacturer charts for the appropriate furnace for the space and climate.
  • Orientation: Since windows are not usually evenly distributed on all four orientations, rotating the orientation of a building design by 90 degrees can change the cooling load.incorrect vs correct furnace sizing Chicago
  • Latitude: The sun’s angle changes with the latitude and could affect the size you need.
  • Roof overhang: The roof overhang width matters, as well as the distance between the top of the window and the soffit.
  • Window Coverings: The presence or absence of any window coverings including, blinds, curtains and drapes.
  • Energy Efficient Appliances/Lighting: Appliances give off heat, especially older non energy efficient appliances. Types of lightbulbs used and the wattage can produce significant heat.
  • Mechanical Rate Ventilation: This could vary based on home’s age.
  • Occupants of a home: General rule of thumb is to calculate number of occupants equal to number of bedrooms plus one.

Experienced installers may also consider other factors like available insulation, the specific floor plan and ceiling heights. A trusted installer will not sell you a furnace larger than what you need, saying it’s “more for your money”. The fact is an over-sized furnace will cause you problems.

Issues Related to an Over-Sized Unit

An oversized furnace is no bargain. Especially when it comes to performance.  Here are some of the issues you’ll likely experience.

  • A home that is difficult to keep comfortable. When your home has an oversized furnace it can generate a lot of heat at once, creating an environment that can be too warm. In addition to some rooms heating too quickly, rooms further away from the furnace may not ever seem to get warm enough.
  • Your furnace will “short cycle” – Because a room heats up so quickly your furnace will “short cycle”, meaning it will be in a start up and shut down mode far too often. This creates furnace wear and may ultimately lead to a furnace failure.
  • This will lead to higher fuel costs.  The start up mode is the most expensive running time for your furnace. This means when it is short cycling it is using more fuel than necessary. This will lead to higher fuel costs and inefficiency.
  • An oversized furnace will wear down quicker. If your home does not have the proper furnace size, the furnace it does have will not last as long. It may be tempting to believe that an oversized furnace may not work as hard, but the opposite is actually true.

If you’ve experienced any or all of the above, it is quite possible you too, have an oversized furnace.

Contact Althoff Industries Today!

Having a professional perform a load calculation and install your furnace means your furnace will run as efficiently as possible as long as possible. When your HVAC is properly maintained, it further ensures that efficiency for years to come. Contact the professionals at Althoff Industries for an appointment today – we service all suburbs in the Greater Chicago area. We’ll make sure your system is the appropriate size for your home. If not, we’ll recommend a system that will save you money on fuel while providing a more comfortable living environment. The more you know about your HVAC system, the more you’ll understand the value Althoff Industries brings as your HVAC technician. contact Althoff industries

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How You Can Avoid Air Conditioner Air Flow Problems

Wednesday, June 21st, 2017

A lack of air flow is one of the most common problems your heating and cooling system can have. This issue can manifest itself in several ways. Luckily, there are also several ways to address air flow problems and prevent them in the future.

Key Takeaways


  • A malfunctioning HVAC system can lead to problems with your air flow, heating, cooling, and indoor air quality.
  • Signs that your AC is having issues include hot or cold spots, air pressure imbalance, lack of air coming from your air ducts, and air that is too warm.
  • The most common cause of air flow issues is an improperly installed air filter. Check the arrow on your filter to make sure it is facing the correct direction. Additionally, if it is clogged with dust and debris, then it should be replaced.
  • Other common causes for air flow problems include obstructions to your condensing unit, dirty fans or coils, a faulty thermostat, and refrigerant leaks.
  • Some of these issues can be fixed by cleaning dirty parts or removing obstructions. Others should only be handled by professionals.
  • Althoff Industries offers 24-hour emergency HVAC repair services and regularly-scheduled maintenance! Call our emergency hotline at (815) 455-7000.

Signs That You Are Having Air Flow Issues

There are a few telltale signs that your heating and air conditioning are having air flow issues:

  • Random hot and cold spots throughout the rooms in your home
  • Air pressure imbalance (i.e. doors closing randomly, whistling noises)
  • Lack of air coming from your vents
  • Your AC is blowing warm air

If you notice any of these issues, then your HVAC system is likely having problems.

Dirty or Improperly Installed Air Filter

The most common cause of air flow issues is an air filter that has been installed incorrectly or is dirty and clogged. One end of the air filter “breathes” fresh air through, while the other end traps dust and debris and prevents it from dispersing throughout your property. If the air filter has been installed backwards, it will inhibit the air flow through your HVAC system. This will cause it to work less efficiently and could even lead to serious damage in your system. If you notice any of the aforementioned issues, then the first thing you should do is check your filter.

When replacing your air filter (or checking to make sure it is installed properly), make sure to look for the arrow! Generally, air filters are manufactured with arrows printed on the side, showing the proper direction of air flow. The confusion can come from understanding which direction the air flow is going into your system.

Air flows into your HVAC system from your supply ducts, usually larger rectangular shaped ductwork that is attached near the bottom of your HVAC unit. Air flows out of this ductwork into your HVAC system toward the blower. Therefore, the arrow on the side of the filter should point away from the ductwork toward your HVAC unit. The ductwork is where the air is coming from, so you don’t want the arrow pointing in that direction.

We’ve produced a short, simple demonstration of the correct installation position of an air filter that you can view in less than 60 seconds.

Not only should you check to make sure that the filter is facing the correct direction, but you should also make sure that it is not overly clogged with dust and debris. As a general rule of thumb, you should replace your air filter every month or so. You should also be aware that while “thicker” filters may trap more particulate matter, they too, can inhibit air flow.

Other Causes of HVAC Air Flow Issues

If your air filter is facing the correct direction and doesn’t need to be replaced, then you most likely have a different problem. There are several other potential causes of air flow issues within your HVAC system.

  • Obstructed condenser unit
  • Malfunctioning thermostat
  • Grimy or broken fans
  • Dirty coils
  • Low refrigerant levels

Obstructed Condenser Unit

Your AC system’s condenser unit is typically found outside your house. These units can become obstructed by fallen leaves, dust, and debris if no attention is paid to them. If this happens, your condensing unit can overheat and fail to work properly. You can easily remedy this issue by removing obstructions and cleaning the unit.

Malfunctioning Thermostat

A faulty thermostat is one of the leading causes of problems with your HVAC system. Most people just don’t realize it. The issue could be fixed by changing the batteries, or you may have to replace the thermostat altogether.

Either way, this is one of the easiest problems to solve. An HVAC repair and maintenance company can replace the thermostat if you do not feel comfortable.

Grimy or Broken Fans

Your HVAC unit uses fans to blow air through your air ducts and circulate it throughout the rest of your property. If a fan is sluggish, this can impede the flow of air. Most of the time, all you need to do is give it a good old-fashioned cleaning. However, if your fan is old and is not working, you may have to replace it altogether.

Dirty Coils

Your HVAC system’s condenser coil releases the heat that has been removed from your property. If it is not working properly, then heat will get trapped in your home. Needless to say, on a hot summer day, this is not fun!

The condenser coil is located outside, so it’s easy for it to get dirty. Make sure to give it a thorough cleaning and check it occasionally to prevent it from happening again.

Low Refrigerant Levels

This is one of the most common problems with HVAC systems. If your AC unit’s refrigeration levels are low, then it may be leaking. Low levels of refrigerant can lead to a drastic decrease in your indoor air quality. An HVAC repair and maintenance company can inspect your air conditioner for leaks, repair them, and bring its refrigeration levels back to normal.

Althoff Industries Is the Go-To Company for HVAC Repairs and Maintenance!

Althoff Industries has been servicing Chicago and the surrounding areas for many years. We offer 24-hour emergency service to those in need. Whether your air conditioner or furnace breaks down entirely, or you have noticed a decline in its performance, call our emergency hotline number at (815) 455-7000.

In addition to air conditioner and furnace repair, we can completely replace your system if it is not up to snuff. You can also schedule regular tune-ups and maintenance to ensure that your HVAC system continues to function for years to come.

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3 Reasons Why a Mismatched HVAC System Costs You More Money

Wednesday, June 14th, 2017

There is a reason HVAC companies refer to their equipment as a “system”. It’s because each component is designed to work in harmony to provide efficient heating, ventilation, and air conditioning. The older an HVAV system is, however, the more opportunities there are to end up with a mismatched evaporator coil and condenser. A mismatched HVAC system can often be referred to as a “Frankenstein” system because it is still operating on pieces and parts that weren’t intended to work, or certainly not work efficiently together.

A Question of Economics

For homeowners, it becomes a question of economics when looking at replacing either an air conditioning unit or a furnace. Can you replace one or the other? Yes. There are, however, a lot of reasons you shouldn’t. Here are three ones.

  1. Replacing both units at the same time will save you money long-term. What many homeowners may not realize is that if they replace only the outdoor AC unit, they’ll probably be spending money to replace the indoor unit shortly thereafter. Your HVAC company won’t have a problem with that because you, in essence, will be paying installation costs twice. In the photo used as an example, you’ll see an AC unit that was replaced just two years before the furnace. To make sure the AC unit worked with mismatched hvacthe furnace they had at the time, we had to make use of a wider coil. When we replaced the furnace, the new furnace was not as wide. This means that now the components aren’t properly matched or aligned for optimal airflow. It involved more work and added more expense. Replacing both units would ensure an efficient, dependable system that will function properly for a longer period of time.
  2. Matched systems perform better. When air conditioning units are designed, they are built to work with a matched indoor unit. This matched system works in tandem to generate optimum efficiency and ideal system performance. As mentioned, replacing an outdoor air conditioner unit without installing the matching indoor unit will work. However, you are jeopardizing the dependability of both units. This compromises your HVAC system’s efficiency, which may cost more in the long run.
  3. Efficiency ratings are based on matched systems. When you purchase a new HVAC unit, the heating and cooling efficiency ratings are based on matched system performance. That means, if you bought a condenser with an 18 SEER rating to help you save money on monthly bills, you won’t realize the full potential of those savings without the matching furnace. The wider the difference range between SEER ratings of equipment, the less efficient they will be in working together.

Another Reason Trusted, Reputable HVAC Service is Important

The issue of a mismatched evaporator coil and condenser and a mismatched HVAC system is yet another reason to perform due diligence in selecting your HVAC company. While we will do what we can to extend the life of any system, there is a time when the wiser choice is to simply replace a system.

A matched system will run more efficiently, perform better, last longer, and deliver cost savings well beyond the extra expense. To learn more, contact one of our expert HVAC technicians today! We service homeowners in the NW Chicago suburbs  and would love the opportunity to service your residential home or commercial business.

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Winter Thermostat Settings – What is Best for the Midwest?

Tuesday, January 17th, 2017

The debate rages on at cocktail parties and family gatherings. There are some who have an extreme view to the right and those who would prefer people lean left when it comes to the subject. One thing we can all agree on is that in Crystal Lake and the Northwest Chicago area suburbs, winters are cold. So what is the definitive answer to what is the best temperature for a house in winter? What are appropriate winter thermostat settings for your home? The answer may be a bit more complicated than you think.

The perfect winter thermostat settings involve a variety of factors, few of which are scientific or even comparable.

Thermostats are Not Always Accurate

Did you ever follow a recipe to the ‘t’, cook it in your oven and then have it burn? The likely reason is that the temperature setting and the exact temperature in the oven may not match. It happens frequently. Likewise, your thermostat may not exactly provide the temperature it is set to deliver to your home. This causes two potential problems.

The first is that the temperature you have your thermostat set at and the temperature it delivers may not match. This can be remedied by making sure your HVAC professional calibrates your thermostat with the furnace. The second issue is that the thermostat of your friends and neighbors may not be correctly calibrated. This means you may be discussing why one family enjoys a 68-70 range and others prefer a 70-72 range when in reality, the actual temperature is the same. The key is making sure your thermostat is reflective of the actual temperature your HVAC system is providing. We can do that for you at Althoff Industries.

There Is a Difference Between Heating Sources

Electric heat is often described as “dry heat” while natural gas furnaces tend to deliver heat that has more moisture. While there are products that can add humidity to electric heating systems, consumers should be aware of the differences. Comparing comfort levels in a room of the same temperature with dry heat and gas heat will offer different opinions on which is better.

Draft and Air Movement

Another major factor in the comfort of a room is the air movement in the room and if it is “drafty”. A room may be heated to an appropriate temperature but if there are drafts from under doors, through windows or due to poor insulation, the room will not be as cozy as one where there are drafts and invasive air flow.

What’s Best for You and Your Family?

The biggest considerations in the proper setting of your home’s thermostat are the comfort of your family and your energy bill goals. If your family agrees on an environmentally friendly program of wearing sweaters, using blankets, and keeping the thermostat to a certain level, congratulations! If not, there are other steps you can take, like installing a programmable thermostat that will control your furnace when no one is at home. If you live alone or as a couple, “smart” thermostats can be controlled from a cell phone to save energy when you are not at home but can get it warmed for your arrival.

The bottom line is that it is difficult to compare comfort levels with others because thermostats may be calibrated differently, homes have different insulation characteristics, and drafts may be more common in some homes than others.

At Althoff Industries, we can make sure your thermostat is accurately calibrated. We can help you create an indoor environment that uses heat and humidity that results in maximum comfort. We will help you with suggestions to keep your energy costs at a minimum.

If you are tempted to compare comfort levels with friends and neighbors, that is understandable. You should be aware, however, this may be an apples to oranges comparison. It can depend on your thermostat calibration, heating sources, insulation, air movement, and more. The bottom line is that you and your family get comfortable with both your indoor environment and your energy costs. We can help you find that balance when you call Althoff Industries.

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