Furnace and Heating System Case Studies

Furnace and Heating System Case Studies

A new furnace or heating system is a big investment. Did you know that we offer “no obligation” free estimates for replacements on one of these systems? We can answer any questions you may have and show you relevant options for your new furnace. Rest assured, every replacement we install is covered by our Love Your New System or Your Money Back Guarantee. If you are unhappy with your new system or installation and we cannot fix it, we will remove the system and refund 100% of your original investment at any time during the first year. You won’t find a better guarantee on a new system.

When Should You Consider Replacing Your Furnace or Heating System?

A typical furnace should last between 10-15 years, longer if the system was properly maintained. Check out the signs it's time to replace your system here.

Browse the case studies below. If your heating system isn't working like it used to, or not at all, give Comfort Services Heating & Air Conditioning a call, and we'll pinpoint the problem and get it up and running again.

  • Goodman Furnace Install – Natalie Lane in Aurora
    Goodman Furnace Install – Natalie Lane in Aurora

    A longtime Comfort+ Maintenance Plan customer of ours gave us a call to schedule their furnace maintenance for their 16 year old furnace. When our tech arrived to perform the tune-up, they discovered that water was leaking from the secondary heat exchanger and the furnace showed signs of mechanical fatigue, plus their humidifier was nonoperational. Our techs assessed the situation and presented the homeowner with their findings. Replacement was recommended, and the homeowner agreed to a furnace replacement consultation. Bright and early the next morning, we returned and installed a new Goodman 96% AFUE GM9S96 Gas Furnace Multi Speed and a humidifier for added comfort. The new system comes with a 10 parts, 30 days labor warranty and 20 year compressor warranty in addition to our guarantees. We know this loyal customer will enjoy their home in total comfort with this new, efficient furnace!

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  • Amana 80% 9 Speed EMC Furnace Install – Cushing Lane in Aurora
    Amana 80% 9 Speed EMC Furnace Install – Cushing Lane in Aurora

    A longtime Comfort+ Maintenance Plan customer of ours gave us a call to schedule their annual maintenance for their 20 year old furnace. When our techs arrived to perform the tune-up, the homeowner complained of always having black, dirty filters this year, even though they were regularly changed. Our techs assessed the situation and presented the homeowner with their findings, which included a cracked heat exchanger and other issues due to the age of the system. Replacement was recommended, and the homeowner agreed to a furnace replacement consultation. Bright and early the next morning, we returned and installed a new Amana 80% 9 Speed EMC Furnace and did a full duct cleaning at the home. The new system comes with a 10 parts, 30 days labor warranty and 20 year compressor warranty in addition to our guarantees. We know this loyal customer will enjoy their home in total comfort with this new, efficient furnace!

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  • Goodman Complete System Install – Wood Duck Drive in Plainfield
    Goodman Complete System Install – Wood Duck Drive in Plainfield

    A longtime customer of ours called in for a repair service, their 22-year-old furnace wasn’t producing heat, and with no air coming through the vents the temperature was dropping quickly in their home. Our techs arrived shortly after, assessed the situation, and presented the homeowners with options including a system replacement – as repairs for a system of this age would be costly. For these customers, it was a no-brainer, and a full system replacement was scheduled for the following day. Bright and early the next morning, we returned and installed a Goodman 4 Ton A/C & 100K 96% Single Stage Furnace and a new humidifier for increased home comfort. The system comes with a 10 parts, 30 days labor warranty and 20 year compressor warranty in addition to our guarantees. We know this loyal customer will enjoy their home in total comfort with these efficient new systems!

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  • Premier+ Furnace Install – Fairfield Drive in Plainfield
    Premier+ Furnace Install – Fairfield Drive in Plainfield

    One of our valued customers called us for a free second opinion, they had a different company out the day prior for a furnace repair and were quoted a repair price that they didn’t deem fair. Our tech arrived, assessed, and provided furnace repair and furnace replacement options to the homeowner who ultimately decided to move forward with us for a new furnace replacement rather than repairing their cracked heat exchanger. A few hours later, we returned to the home to install our private label Premier+ 80% Single Stage Multi Speed Furnace and a new humidifier for added comfort. This system comes with a 10 parts and 1 year labor warranty with a 20 year compressor warranty in addition to our guarantees.

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  • Goodman Complete System Install – Gates Lane in Plainfield
    Goodman Complete System Install – Gates Lane in Plainfield

    A prospective customer to Comfort Services called in looking for an a/c repair for their 20+ year old system, as it was not running or blowing any cold air. Our techs arrived later that day and discovered the condenser fan motor was seized and found refrigerant levels appearing to be pretty low and also used R-22 refrigerant. Due to the age of the unit the fact that this is using R22, it was recommended to consider a new, energy efficient a/c. The customer also wanted a quote for a new furnace, which was provided on the scene and a replacement was scheduled for the next morning. We installed new Goodman 13.4 SEER2 A/C system and 80% furnace. System comes with a 10 parts, 30 days labor warranty and 20 year compressor warranty in addition to our guarantees. Lastly, a new humidifier was also added on to increase the customer’s total home comfort.

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  • Goodman Complete System Install – Sand Creek Lane in Plainfield
    Goodman Complete System Install – Sand Creek Lane in Plainfield

    A new customer to Comfort Services was searching online for an HVAC company to perform their a/c maintenance, found our profile on Google, and decided to give us a call. Our techs arrived on the scene to complete their maintenance and gave a few recommendations to consider to increase efficiency and system life for their 18+ year old system. Two days later, our new customer called back because their a/c stopped working, so we returned and discovered the system was low on both pressure and refrigerant – a sure sign of a leak. Due to the age of the system and cost of repairs, it was advised to consider a replacement and a quote was given to replace both the a/c and furnace, as requested by the homeowner who then decided to move forward with a full system replacement, and we were able to schedule them for the following morning! A new Goodman 13.4 SEER2 A/C system and 80% furnace. The system comes with a 10 parts, 30 days labor warranty and 20 year compressor warranty. This System comes with a 10 parts and 1 year labor warranty with a 20 year compressor warranty in addition to our guarantees.

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  • Goodman Split System Install – White Thorn Circle in Naperville
    Goodman Split System Install – White Thorn Circle in Naperville

    A longtime Comfort+ Maintenance Plan member scheduled their annual air conditioner maintenance for their 22 year old system hoping to get another season out of their system. Our tech arrived on the scene to start the maintenance and found the a/c in pretty rough shape. The system was extremely low on refrigerant and was barely even functioning. Since their furnace was the same age as the a/c, they wanted quotes on replacing both their furnace and air conditioner and scheduled a full system replacement for the following day! Bright and early the next morning, we returned and installed a Goodman 2 Ton A/C & 60K 80% Single Stage Furnace. The system comes with a 10 parts, 30 days labor warranty and 20 year compressor warranty in addition to our guarantees. We know this loyal customer will enjoy their home in total comfort with these efficient new systems!

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  •  Same Day Amana System Install – S Wright Street in Naperville
    Same Day Amana System Install – S Wright Street in Naperville

    A longtime Comfort+ Maintenance Plan member of ours scheduled their annual air conditioner maintenance for their pair of air conditioners. Our tech arrived to their home to find the second floor system extremely low on refrigerant, which was causing the condenser to not turn on. After inspecting the furnace upstairs, we found water damage in the furnace and some flaws on the heat exchanger. Due to the cost of these issues, the customer decided to replace their systems rather than repair. We returned later that same day and installed a new Amana HVAC system. A/C system will be a 15.2 SEER2 condenser and 96% 9 speed ECM furnace. The system comes with a 10-year parts warranty, and the furnace heat exchanger has a lifetime unit replacement warranty in addition to our guarantees.

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  • Goodman Split System Install – Woodview Court in Aurora
    Goodman Split System Install – Woodview Court in Aurora

    One of our valued customers gave us a call for a quote on a new furnace and air conditioner for their home. Our comfort consultant arrived, assessed, and provided options to the homeowner who ultimately decided to move forward with a new HVAC system replacement. Our techs arrived back to the home the following day to install a Goodman 2 Ton A/C & 60K 80% Single Stage Furnace. This System comes with a 10 parts and 1 year labor warranty with a 20 year compressor warranty in addition to our guarantees.

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  • Amana Furnace Install – Joyce Lane in Naperville
    Amana Furnace Install – Joyce Lane in Naperville

    A new customer to Comfort Services called for a repair service because their furnace wasn’t producing any heat. The techs arrived and conducted a full diagnostic of the furnace – it was old and in pretty rough shape. They found a bad exhaust system on the furnace, the inside of the furnace was rusting, and the blower motor was leaking oil. Do the cost of these issues replacement was recommended, the customer agreed, and we scheduled a furnace replacement for the next day so the customer wouldn’t be without heat for very long. We installed an Amana AM9S 80% AFUE 120K 5 Ton Single Stage Multi Speed ECM Upflow Furnace. This 80% AFUE furnace converts $0.80 of every dollar into indoor comfort in your home and has continuous air circulation throughout your home to help maintain comfort.

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  • Amana Split System Install – Bluestem Lane in Aurora
    Amana Split System Install – Bluestem Lane in Aurora

    A new customer called to schedule a replacement estimate for their old, inefficient air conditioning and furnace systems. Our comfort consultant arrived, provided replacement options, and discussed the options with the homeowner so they could make the decision that was best for their household. The following day, we installed a new Amana HVAC Split System which included an A/C system with a 13.4 SEER2 condenser and 80% 9 speed ECM furnace. On top of their new systems, the homeowner also scheduled a full duct and dryer vent cleaning and signed up for our Comfort+ Maintenance Plan, so their home would be fully set and comfortable for the entire year to come. The complete system comes with a 10-year parts warranty and the compressor and heat exchanger have a 20 year parts warranty in addition to our guarantees.

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  • Furnace and AC Installation in Plainfield IL
    Heating & AC System Installation on Skyline Drive in Plainfield, IL

    Our customer found themselves without heat one day. They reached for their phone and gave Comfort Services a call and our technician rushed out to diagnosis the problem. Their sixteen year old furnace had some serious issues including a burnt out motor, and a heat exchanger in bad condition. Since our customer had said they wanted to discuss replacing their AC system, they decided to consider replacing both units at the same time. Being that they had no heat, we installed a new system the same day. An 80% two stage furnace and a 16 SEER AC condenser was installed and will provide years of dependable efficiency year round comfort. In addition to the new system, we also installed an Air Scrubber Air Purifier to remove contaminants, bacteria, and viruses from the home’s air. To complete the installation, we returned a couple days later to perform a thorough duct cleaning. This customer is set up for years of dependable comfort and cleaner air!

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  •  Furnace replacement Plainfield IL
    Furnace installation on West Walnut Drive in Plainfield IL

    Our customer called us out because their furnace was no longer producing heat. We got right to work. During our thorough diagnosis, we discovered a cracked heat exchanger. This situation can be dangerous and poses a risk of carbon monoxide poisoning. We turned off the furnace while we worked on solutions. Due to the age of the system, the homeowner decided to replace the old furnace. We completed the installation of an Amana gas furnace for the homeowner. This 80% furnace features a steel tubular heat exchanger for durability and safety. The multi-speed ECM motor will help reduce energy consumption to keep utility costs in check. This system is covered by a 10-year parts & 20-year heat exchanger warranty. Plus, our exclusive Love Your System or your Money Back Guarantee!

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  • Furnace installation Naperville IL
    Furnace Installation on Chapel Hill Avenue in Naperville

    Our customer gave us a call because no matter how high they set their thermostat, their furnace would not keep their home comfortable. When our technician arrived, they found the eleven year old furnace to be in pretty bad shape. Water was leaking out of the secondary heat exchanger, the exhaust system was in bad shape, and the blower motor was running hot and pulling elevated amps. All together, it was a bad situation. Our technician presented the homeowner with options to repair or replace the system. After reviewing the options our customer decided that it was time to replace the old energy gobbling furnace. We installed a new 96% ECM Amana furnace. This super-efficient furnace will convert 96 cents of every energy dollar into comfort for their home. The stainless-steel heat exchanger and secondary heat exchanger will provide years of reliabile efficiency. Continuous air circulation will keep air moving throughout the home to help maintain comfort. For added peace of mind, this system is covered by a 10-year parts & lifetime heat exchanger unit replacement warranty. Plus, Comfort Services Money Back Guarantee.

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  • Furnace Install Romeoville, IL
    Furnace Install on Grand Haven Road in Romeoville, IL

    We’ve been taking care of this customer’s comfort for several years, so when the furnace wasn’t keeping their home comfortable – they knew exactly who to call. Our technician arrived to diagnose the problem to get them comfortable again. Upon diagnosis our technician found a cracked heat exchanger. This is a serious situation that can result in a dangerous carbon monoxide leak. In addition to this issue, the exhaust system had also failed. Due to the nature of the repairs the technician provided the customer a no cost estimate to replace the furnace. We installed a new Amana furnace the next day. This 80% ECM furnace will provide years of dependable and efficient comfort and comes with a 10-year parts & 20 year heat exchanger warranty on top of our exclusive Love Your System or your Money Back Guarantee!

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  • Furnace Install – Aurora IL
    Amana Furnace Install on Greenbriar Place in Aurora

    Wow! Our customer was without heat, so we went right to work putting in a new furnace. Here’s how it went: The customer called to schedule a repair because his furnace was making a lot of noise and not keeping the home comfortable. In addition, their gas bill was super high. When our technician arrived, the furnace was not working at all. He diagnosed the problem and provided options, including replacing the old inefficient system with a new one. Due the age of the system, cost of the repair, and unreliability, the customer decided to replace it. We installed a new 2 Stage Amana gas furnace the same day! This system is super-efficient, converting about 80 cents of every energy dollar into comfort. Plus, the heat exchanger is stainless-steel for added durability. Continuous air circulation provides added filtration and keeps air moving throughout the home to maintain comfort. This system will provide years of dependable comfort and comes with a 10-year parts, 20 year heat exchanger warranty and Comfort Services’ Money-Back Guarantee

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  • Furnace Install – Aurora IL
    Amana Furnace Install on Shiloh Drive in Aurora

    Our customer’s 20 year old furnace decided to go caput on a Friday morning. They gave us a call and our technician rushed over to diagnose the problem. He found several issues with the system including a bad control board, and the heat exchanger was in poor condition. Due to the age and condition of the system and the cost of repairs, our customer decided to move forward with a furnace replacement. We installed a new 80% Amana furnace the same day so they would not be without heat over the weekend. Their new system will operate efficiently for years to come and is covered by a 10 year parts, 20 year heat exchanger warranty and Comfort Services’ Money-Back Guarantee.

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  • Amana Furnace Install in Plainfield
    Amana Furnace Install in Plainfield

    Amana 80% 9-speed ECM furnace installed for our Comfort Plus Maintenance Plan member in Plainfield. Upon completing the installation we went over all system features with the homeowner and answered their questions. This system includes a 10-year parts and 20-year heat exchanger warranty. This system is covered by our “Love Your New System or Your Money Back” guarantee.

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  • Dunkirk Boiler Install – Root Street in Crest Hill
    Dunkirk Boiler Install – Root Street in Crest Hill

    Comfort Services was called out to because a mouse had caused damage to the system. Upon diagnosis it was found that the mouse had damaged wires causing them to burn and fail. Our technician presented the customer with repair options and due to the age and condition of the system recommended a replacement. Comfort Services replaced the system a new Dunkirk 84% AFUE 150,000 BTU boiler that will be more efficient and run problem free for years to come.

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  • Furnace, Nest Thermostat & Carbon Monoxide Detectors Install – Crescent Lake Drive in Crest Hill
    Furnace & CO Detectors Install – Crescent Lake Drive in Crest Hill

    Our Comfort Plus Maintenance Customer decided it was time to upgrade their system to improve efficiency and comfort. Comfort Services replaced the current system with a new Amana 80% 9 speed ECM gas furnace, first Alert Carbon Monoxide detector, and Google Nest thermostat. This system is covered by a 10-year parts & labor warranty and a 20-year parts warranty.

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  • Goodman Furnace & AC Install – Eich Drive in Crest Hill
    Goodman Furnace & AC Install – Eich Drive in Crest Hill

    Installation of a new Goodman 13 SEER A/C system and 80% furnace. Complete system comes with a 10-year parts, 30-day labor warranty, and 20-year compressor warranty plus our Money Back Guarantee

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  • Goodman A/C & Furnace Install – Meer Park Court in Crest Hill
    Goodman A/C & Furnace Install – Meer Park Court in Crest Hill

    Comfort Services was called for a boiler repair because the system was kicking on but not producing heat. A diagnostic was performed and the system was cutting out after a couple minutes of operation. After testing all components, it was revealed that the inducer motor, pressure switch and flame sensor were faulty. Due to the amount of dirt and debris in the furnace and on the electrical components, the technician presented several options to the customer. Due to the age and condition of the system the customer decided to replace it. Comfort Services installed of a new Goodman 13 SEER A/C system and 80% furnace. This system is covered by a 10-year parts, 30-day labor warranty, and 20-year compressor warranty.

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  • Amana Furnace Install – Hemlock Avenue in Romeoville
    Amana Furnace Install – Hemlock Avenue in Romeoville

    Comfort Services installed a new Amana 80% two stage 9 speed ECM furnace and an AprilAire humidifier. The furnace comes with a 10-year parts & 20-year heat exchanger warranty plus our Money Back Guarantee. Here are materials or parts that should be new on the install that many companies need to pay more attention to. Comfort Services never reuses old materials on a new HVAC system:

    Furnace:
    - New flue pipe to furnace & water heater
    - Furnace bottom return box for proper system airflow when possible
    - New gas pipe from shut off forward with 6” drip leg
    - New electrical box, switch, and outlet

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  • Amana Furnace & Google Nest Install – Rachel Circle in Romeoville
    Amana Furnace & Google Nest Install – Rachel Circle in Romeoville

    Customer called Comfort Services for a furnace repair. The system was not producing any heat. Comfort Services technician presented the customers with repair options as well as discussed the option of replacing the system. Due to the age and condition and the recent issues the customer decided to complete a furnace replacement. Comfort Services replaced the system with a new Amana 80% two-stage 9-speed ECM gas furnace and a Google Nest thermostat. This system comes with a 10-year parts & 20-year heat exchanger warranty plus our Money Back Guarantee.

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  • Amana Furnace Install – Muskegon Way in Romeoville
    Amana Furnace Install – Muskegon Way in Romeoville

    Customer called for a furnace repair because they had lukewarm air coming out of his heating system. The system was cycling on and off at random. Comfort Services thoroughly diagnosed the system and went over his recommendations with the customer. Due to the age and condition of the system, the customer decided to replace it. Comfort Services installed a new 96% 9 Speed ECM Amana furnace and an AprilAire programmable thermostat. This system is covered by a 10-year parts & lifetime heat exchanger unit replacement warranty plus our Money Back Guarantee. All materials or parts needed to complete the installation were replaced.

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  • Amana Furnace Install – Summerfield Court in Romeoville
    Amana Furnace Install – Summerfield Court in Romeoville

    Comfort Services completed a new Amana 80% 9 speed ECM furnace installation and AprilAire programmable thermostat. System is covered by a 10-year parts & 20-year heat exchanger warranty plus our Money Back Guarantee. The installation included all labor and materials to complete the installation. Upon completion Comfort Services went over all system features with the customer and answered all their questions.

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  • Goodman Furnace Install – Amaryllis Drive in Romeoville
    Goodman Furnace Install – Amaryllis Drive in Romeoville

    Comfort Services completed a new 80% single-stage gas Goodman furnace replacement. This system is covered by a 10-year parts, 30 days labor warranty and 20-year compressor warranty. The installation price included all labor and materials to complete the job. Comfort Services covers all replacements with our Money Back Guarantee.

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  • Goodman Furnace & AC Install- Parador Drive in Naperville
    Goodman Furnace & AC Install- Parador Drive in Naperville

    Problem: Water leaks and corrosion caused by faulty installation. Solution: Installation of a new Goodman 13 SEER AC and 96% furnace. This system is covered by a 10-year parts and labor warranty and a 20-year compressor and heat exchanger warranty, as well as our Comfort Services Money-Back Guarantee.

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  • Amana Furnace Install – Williamstown Court in Naperville
    Amana Furnace Install – Williamstown Court in Naperville

    Problem: Water leaks and corrosion caused by faulty installation. Solution: Installation of a new Goodman 13 SEER AC and 96% furnace. This system is covered by a 10-year parts and labor warranty and a 20-year compressor and heat exchanger warranty, as well as our Comfort Services Money-Back Guarantee.

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  • Amana Furnace Install – Cordgrass Road in Naperville
    Amana Furnace Install – Cordgrass Road in Naperville

    Installation of a new Amana 80% two-stage 9-speed ECM furnace. The system comes with a 10-year parts & 20-year heat exchanger warranty plus our Comfort Services’ Money-Back Guarantee. Here are materials or parts that should be new on the furnace installation that many companies ignore. Comfort Services will never reuse old materials on a new HVAC system:

    Furnace:
    - New flue pipe to furnace & water heater
    - Furnace bottom return box for proper system airflow when possible
    - New gas pipe from shut off forward with 6” drip leg
    - New electrical box, switch, and outlet

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  • Amana Furnace Install – Avondale Circle in Naperville
    Amana Furnace Install – Avondale Circle in Naperville

    Comfort Services installed a new 96% Two Stage 9 Speed ECM furnace. High-efficiency furnaces can NOT vent through standard chimney vent pipes. These require venting out the home using PVC pipe. Due to the acidic nature of the furnace condensate, a neutralization kit must be used to prevent damage to drain lines and/or sump systems. The system comes with a 10-year parts & lifetime heat exchanger unit replacement warranty.

    Furnace:
    - New flue pipe to furnace & water heater
    - Furnace bottom return box for proper system airflow when possible
    - New PVC pipes for the furnace if needed.
    - Purple primer on vent PVC per code.
    - PVC termination 12” above the snow line. The exhaust points out and the intake loop points downward.
    - Install bird screens.
    - New drain line with condensate neutralizer on 90%+ furnaces. Furnace gas is VERY corrosive, this gas condensates back into the furnace and comes out through a drain. If a neutralizer is not used the acidic drain water damages your sump and drain line and can cause very high repair costs. The neutralizer prevents this from happening.
    - New gas pipe from shut off forward with 6” drip leg
    - New electrical box, switch, and outlet

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  • Amana Furnace Install – Deer Chase Lane in Naperville
    Amana Furnace Install – Deer Chase Lane in Naperville

    We installed a new Amana 80% 9 speed ECM furnace and AprilAire Programmable Thermostat with a large 4.5 inch square LCD screen with high contrast for easier reading. The gas HVAC system comes with 10-year parts & 20-year heat exchanger warranty plus our Money Back Guarantee. Here are materials or parts that should be new on the furnace installation that many companies ignore. Comfort Services will never reuse old materials on a new HVAC system:
    Furnace:
    - New flue pipe to furnace & water heater
    - Furnace bottom return box for proper system airflow when possible
    - New gas pipe from shut off forward with 6” drip leg
    - New electrical box, switch, and outlet

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