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Happy Father’s Day!

6/15/2025

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​Today, we celebrate with the father of chimney scanning and a great Dad (according to Shelley). Tom Urban not only built the first chimney inspection camera but was also the first man to inspect a chimney! Over 40 years later, he’s still building and repairing Chim-Scan® inspection systems today! Happy Father’s Day, Tom, and to all the other fathers, we hope you have a good day, a good meal, and a new remote!
A young woman with glasses holds a baby while her husband looks lovingly at them.
A man, his wife, and daughter all smile happily.
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It’s Pet Appreciation Week! Meet Binx!

6/4/2025

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​Meet Binx Hijinx– Inspector 13. He is a tough nut to crack. Not much gets past him. He’s clever, stealthy, and able to sneak into any product video scene without warning. At the least expected moment, he lands on any desktop or workstation, inspecting the work and sniffing out office snacks. While on duty, he consistently inspects products, keyboards, suspicious noises, and smells (particularly lunch). He takes his work very seriously. He particularly enjoys night patrols when all of the other employees are sleeping.
A black cat looks at the camera with big eyes and fangs exposed.
A gold badge saying Security Officer, Intruder Division. Roden Specialist, Inspector 13. Officer Binx. Badge #13.
Binx, the black cat, is laying in a planter, curled around the trunk.
A black cat sits amongst pumpkin vines.
A black cat sits above a peg board with tools.
Binx cuddles on Shelley's shoulder.
Binx is a black cat and cuddles with Alicia at her workstation.
Binx, a black cat hides inside a black box that designed to hold a Chim-Scan® chimney camera inspection system.
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It’s Pet Appreciation Week!

6/2/2025

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​We celebrate with Bella, who is in charge of security here at Estoban. No one gets past her! She clocks in early every morning, paces the parameters, checks the interior, and monitors traffic flow in the building. In her free time, Bella enjoys long car rides, trips to the post office, treats from Marvin, and hugs from her mom.
Celebrate your pet this week! Share photos of your pet or office “helper”! We would love to see them!
​

From your friends at Estoban
We are busy building, upgrading, and repairing the Chim-Scan® Internal Evaluation Systems because we can. After all, we build them here in Iowa.
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Celebrating Pride Month in June

6/1/2025

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​Pride month is about respecting people, their choices, and their identity. It is about becoming comfortable in yourself, not what someone else wants you to be. This June, we honor the beautiful spectrum of love and community brightening our world. Pride is more than a celebration—it's a powerful statement of acceptance, resilience, and belonging, and the chance to be ourselves unapologetically.

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What does June 1st mean to you?

6/1/2025

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​June 1st has different meanings for different people. It is Andy Griffith’s birthday. It’s Oscar the Grouch Day and Say Something Nice Day (both on the same day!). It is also the beginning of the Atlantic Hurricane Season and Bedbug Awareness Week. There is one that we prefer (next to being nice), and that is New Year's Resolution Recommitment Day.
​
Remember back to that cold, nasty time in January? Hopefully, you enjoyed the time spent with family and friends during the holidays. As you had some time to relax, did you have an epiphany of how you wanted your life to look, and you decided to create a rearrangement of priorities? Well, here we are. Halfway through the year. How’s that list looking for you today? The good news is, it’s not too late to jump back in! 

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June is National Safety Month!

6/1/2025

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Ask any chimney technician how they were injured, and words like tired, late in the day, hot, and in a hurry will be some of the words that will creep into the conversation. 
Accidents occur. It could be something you’ve done or skipped multiple times, but it catches you off guard this time. Always care for yourself first!
Before starting a chimney scanning job, put on your PPE equipment, especially an appropriate respirator. Soot and fly ash have no place inside your lungs. Soot can stain and smear. Please do not touch it! Vacuum it off without touching it with the hose end (hover).
Regarding your camera system, all of our Chim-Scan® units are designed to handle the soot and cinders – you are not! We recommend wiping it after use to remove the soot from the cable and camera (use separate cloths). Other unit safety tips are:
• Ensure it is seated securely on the hearth or drop cloth.
• If you use it on the roof, ensure it is secured so it won’t slide off. For information on scanning from the roof, click here to see a whole series of videos. 
• Talk to your insurance agent so your Chim-Scan® Unit is insured in case of theft or damage. Not all policies cover a unit in transit or use at your customer’s home. Get Inland Marine coverage for this.
Oil soot contains sulfur; when it mixes with moisture, it becomes sulfuric acid. Inhaling it where it is exposed to moisture in your sinuses and lungs could harm your lungs and burn your sinuses if left unprotected. If you do not use a respirator, oil soot in your sinuses will be an experience you will not forget. Coal appliances also have sulfur in the soot, but are not as concentrated as oil, and can still burn your sinuses. 
 Clothing covers help keep you clean for the next job. You may choose Tyvek suits or other coveralls. Disposable nitrile gloves are handy, especially if you must move fireplace toolsets or touch an appliance that might leave residue on your hands before putting on your heavy work gloves. If you need to go to the roof, always reference OSHA Guidelines for fall protection equipment, hard hats, or helmets when accessing the roof and in other situations where protection equipment is required.
Care for yourself first. There’s not another you, and in that moment, you are choosing to put yourself first or accept the consequences if you harm yourself because of a shortcut. Don’t do it! That one-minute time saver may cost you your life!
A man is wearing a respirator, coveralls, and gloves while scanning a chimney flue for damage.
Personal Protection Equipment is essential to wear on jobs to minimize exposure to creosote and other residues found in the flue.
A harness for securing to the roof.
When scanning or working on a roof or chimney, it is essential to wear the appropriate safety harness following all OSHA Guidelines.
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CSFT - An Essential Training Tool for Employees!

5/12/2025

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​Are all of your employees on the same page? Is there a discrepancy in terms or procedures? Does your office staff understand what your chimney technicians are trying to tell them? Does it take a long time to train new employees? These problems can be solved with the Chim-Scan® Factory Training (CSFT) class.

This class/book follows a video scanning and inspection process. Each of the five modules takes the technician from one transition point to the next. It provides an up-close view within the structure.  There is also a 17-page glossary with terms and images. The book includes over 400 photos that explain what you will see in the flue. 

How can your team be aligned if your technicians don’t agree on terms or the procedure? Is this causing confusion with your office staff? If each employee who trains a new technician uses their own terms and unique processes, this confuses the technicians and office support staff! Having streamlined training is essential to having a staff that works together. 
​
Do your technicians understand what is happening in the flue? A cracked chimney does not always mean a chimney fire has occurred. A crack may indicate one of these causes: overfiring, chimney fire, or a seismic event. This book focuses in depth on the symptoms to look for other than cracks. There is other evidence to gather, images to capture, and analysis of how this may affect the structure. 

Highlights for the CSFT book and training:
• What is an Ideal Chimney? How does it stand up to IRC and NFPA 211?
• When do I use IRC, NFPA 211, or the appliance manufacturer’s installation instructions?
• Understanding the Levels of Inspection and Chimney Scanning
• Cracks in the flue, Thermal Stress, and Thermal Shock
• Best viewing angles for scanning – the best angle to use by defect for the best images
• The Four Pathways to Deterioration, with examples and images
• Best Access Points for scanning
• What you might find in a chimney (animals, types of soot, etc.).
• Equipment check
• Scanning patterns

Once technicians become familiar with the content in the book, they can take the Chim-Scan® Factory Trained Technician Test to achieve this designation. They will earn a certificate and a patch. A copy of the logo is also available for their use now. This will put them light years ahead of their competition and make them a source of knowledge for homeowners.
Picture A logo for the Chim-Scan® Factory Trained Technician includes flames from a fireplace and a chimney.
You can receive this designation after passing the test to become a Chim-Scan® Factory Trained Technician.
Two installations - a woodstove and a gas furnace. Each are vented with prefabricated chimney in a detailed diagram.
This is an example of the drawings at the beginning of each module. On the left is a solid fuel installation. The installation on the right is for liquid fuels.
Bubbly black and glazed creosote and other types of soot area shown.
These pages show some of the things you may see when scanning the flue. It includes correct names for types of creosote.
A resurfaced flue, an insert, and a chimney cap have explanations within the glossary.
We include a 17-page glossary of technical industry terms with images.
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Happy Mother’s Day to Our Co-Founder, Esther!

5/11/2025

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We hope you enjoy this day with the mothers close to you!
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The Four Pathways to Chimney Deterioration

5/7/2025

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​The causes of most chimney deterioration fall into four categories: Wear & Tear, Latent Defects, Moisture, and Sudden Occurrence. When a defect is found in a chimney, the origin (cause) is essential to categorize so the homeowner understands the "why" of what occurred. Sometimes damages overlap into more than one category. 
I created the Four Pathways to Chimney Deterioration for Masonry flue and Prefabricated flues so it would be easier to determine which "bucket" the defect falls into. It’s important to remember that the defect source may not be covered by insurance. A cracked masonry flue tile should not automatically be considered a result of a sudden occurrence like a chimney fire. Other events or situations could have caused it. 
The chart below shows the Four Pathways to Deterioration categories and whether defects found in the category are insurable. This chart is intended to be a reference only, but in the end, it comes down to the homeowner's policy and what the insurance adjuster determines. Your job is to collect the data (due diligence) so the adjustor can decide.
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Masonry Clay Flue Tile Defects
Masonry clay flue tiles meet a harsh environment inside the chimney. Corrosive condensation, moisture, chimney fires, and other conditions may damage a flue tile. In certain circumstances, a clay flue tile can last for decades, provided they are maintained and the homeowner operates the appliance or burns responsibly.

Latent Defects are defects found within the system from improper and sometimes creative use of material that stray from building codes or the manufacturer's installation instructions. This deviation from the codes or installation instructions creates various issues within an installation.

Wear and Tear is the natural aging process where material breaks down over time. Wear and tear can also include how an appliance is operated. If it is too hot, it decreases the life of the appliance, chimney, and connector pipe. If the temperatures are too low, it can create a tar-like creosote and increase the likelihood of a Sudden Occurrence (or condensation with gas/oil). Another factor is maintenance or lack of maintenance. Wear and tear can sometimes overlap with other categories.

Moisture and Condensation damage occur when water enters the chimney interior due to a missing cap, leaking crown, cracks in the brick structure, freeze-thaw breaks in the bed or head joints, and a poor choice of brick, causing excess water absorption. Another source of water in a chimney can come from condensation. This condensation occurs when the flue gas temperature falls below the dew point. Because of the water percentage in natural gas and liquid propane, the flue gases may condense in masonry chimneys, especially those located along the home's exterior.
The next fuel to condense is wood. When the warm gases reach the masonry flue liners, they, too, cool off. The moisture is included with the other byproducts of wood burning – black creosote, watery or tarlike soot.
The last fuel, oil, will also condense on the masonry walls. Due to the higher efficiencies that oil appliances can now operate, they too will condense and, with their acidic nature, can destroy masonry clay flue tiles.

A Sudden Occurrence is a sudden event that causes damage. It can be a chimney fire, a sudden weather-related incident(s) such as a tornado, strong wind, or a seismic event. It has to be out of the ordinary of daily operations.
A Sudden Occurrence, the last Pathway, includes damage seen from a direct and sudden event. Indirect manners can apply to areas where mine subsidence has occurred (where mining was performed). Of the Pathways, this last defect(s) will usually become an insurable loss. The other three defect categories – Latent Defect, Wear & Tear, and Moisture are generally not insurable losses since insurance contracts (policies) do not include them.
Two orange flue tiles joint in the middle with a mortar joint.Picture
This cutaway view shows the interior of a new flue tile with a proper mortar joint.

A gap is shown between 2 flue tiles where the mortar joint should have been.
Latent Defect - Lack of mortar caused these tiles to shift.

Broken and cracked firebrick with debris in the woodstove interior.
Wear & Tear shows up as cracked firebrick like in this woodstove, but can also be seen in broken handles, and loose or missing gasket.

A flue shows flaking and a large portion of the tile broken out.Picture
Moisture caused a portion of a flue tile to break and fall out. Moisture can cause flaking and disintegration of flue tiles, especially when combined with corrosive acids in oil and gas flues.

Picture - An orange flue tile shows a crack, scorch marks, and charred flakes from burning paper.
A vertical crack, scorch marks, and puffy creosote should be present to prove sudden occurrence, ideally with a fire department’s report. In this image, there was a sudden occurrence, likely caused by burning papers or boxes, as evidenced by the burnt paper flakes.
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Celebrating Cinco de Mayo!

5/5/2025

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Cinco de Mayo is a holiday originally celebrating the Mexican army’s victory over France at the Battle of Puebla, where it’s said they were outnumbered 2 to 1. This happened during the Franco-Mexican War on May 5th, 1862. Even though the war eventually continued, resulting in the French occupation of Mexico City, the US began to provide political and military assistance after the Civil War. The French unconditionally surrendered and withdrew. 
​In the United States, Cinco de Mayo was first celebrated in California in 1863 when Mexican miners were so excited when they heard of the defeat, they had an immediate celebration. It took some time, but Cinco de Mayo has evolved into a celebration of Mexican American culture, cuisine, music, and heritage, with events in major cities across the country scheduled. It is celebrated with music, dancing, ceremonies, activities, cuisine, and beer. Happy Cinco de Mayo!
From all of us at Estoban

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    Author

    Tom Urban has worked in the Chimney and Hearth industry for 45 years. He's been an inventor and manufacturer for 40+ of those years.

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1643 Old Hwy 34, Fairfield, IA 52556
Office phone# 641-472-7643    
Email: [email protected]
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