Chimney Care Company's Blog

What is the state of your chimney flue?

Your chimney might appear to be in good shape from the outside, but what does it look like on the inside? Your chimney flue — the interiorchimney liner, heatshield, flue image portion of your chimney — does the majority of the work exhausting your fireplace. It deals with extreme heat from your fireplace, moisture from outside and corrosive creosote and soot. All of those things can lead to a breakdown of your chimney flue liner. That’s especially concerning when you consider that it is your chimney flue that protects your home from the smoke, heat, and flames from your fireplace.

Understanding the state of your chimney flue

So how do you know what state your chimney flue is in? That requires an annual sweeping and inspection from a certified chimney professional. During your annual sweeping and inspection, your chimney sweep will look for signs that your chimney flue isn’t in ideal condition. If your chimney flue is cracked, crumbling or corroded, your chimney sweep will recommend a chimney relining to shore up your chimney and keep your home safe from the byproducts of your fireplace. A chimney relining also might be ordered if your chimney suffers from poor drafting caused by a chimney liner that isn’t properly sized for your fireplace or heating stove.

About chimney relining

The good news about chimney relining is that it is a relatively quick and simple process. There are two primary options for relining your chimney:

  • Stainless steel chimney liner. If your existing chimney liner is failing, a stainless steel chimney liner can be inserted to your chimney. This option can be utilized for any type of chimney, but if your chimney currently has a prefabricated chimney liner, this will be the method used for relining your chimney flue.
  • Cement chimney liner. If you have a masonry chimney flue liner, you have a second option for relining your chimney: a cement chimney liner. With this method, a foam plug sized to your chimney is lowered down the chimney on a winch. Next, a specialized cerfractory cement, which is formulated to stand up to the heat, smoke and flames from your fireplace, is poured down your chimney. The specially sized foam plug is then pulled slowly up your chimney flue, smoothing the cement into place. The cement fills any cracks or holes in your chimney, providing you with a safe, air-tight chimney liner.

Want to know the state of your chimney flue? Call the Chimney Care Co.

If you are unsure of the state of your chimney flue, or if you are due for your annual chimney sweeping and inspection, call the Chimney Care Co. Our certified chimney sweeps will clean and inspect the inside of your chimney flue to be sure that it is in good repair and keeping your home safe from smoke, flames, and heat. If a chimney relining is in order, the Chimney Care Co. can reline your chimney with a stainless steel chimney liner, or resurface your chimney with HeatShield cerfractory sealant. Call to schedule your inspection now!

We have different HeatShield systems for your repairs!

Any weaknesses in your chimney’s internal masonry is a danger for your home. When heat and smoke escape from your chimney, they gain access to your home’s infrastructure. It can cause warping and damage to the structure of your home, or even a house fire. If your masonry chimney is showing wear, then Chimney Care Co. has a HeatShield product that can help.

About HeatShield

We have different HeatShield systems for your repairs - Cincinnati OH - Chimney Care CoWhat is HeatShield? HeatShield’s primary product is the HeatShield Cerfractory Sealant. It is a cerfractory cement product that can withstand the heat, flames, and smoke put off by a fireplace. HeatShield Cerfractory Sealant is applied to portions of the chimney where tools can reach. Whereas, HeatShield Cerfractory Foam is sprayed into place for easy application or hard-to-reach portions of the chimney. HeatShield offers other specialty chimney products include a solvent that can be applied to the interior of a chimney to break down hard-to-remove glazed creosote.

Uses for HeatShield

HeatShield has several applications for holding up your chimney and reducing the likelihood of a chimney fire. Some ways HeatShield can repair your chimney include:

  • Chimney relining – Clay tile flue chimney liners break down over time. Due to the heat and moisture from your fireplace, the tiles eventually crack and crumble. Where gaps occur in the chimney flue wall, it causes heat, smoke and burning embers to escape and damage your home’s surrounding infrastructure. HeatShield Cerfractory Sealant is usually pour down your chimney and smoothed into place using a specialized plug to fill gaps or cracks so your chimney’s liner protect your home from your fireplace’s byproducts.
  • Smoke chamber parging – Like your chimney flue, your chimney’s smoke chamber — the area just above your firebox that funnels smoke up into the chimney — can develop weaknesses to allow smoke and fire to escape your chimney. In fact, the National Fire Protection Association states that one in three chimney fires are caused by damaged smoke chambers. Even if your smoke chamber isn’t cracked, many smoke chambers are built with harsh angles to cause smoke and heat to bounce inefficiently around the chamber. This interfere with your chimney’s draft. HeatShield can be used to fill any damaged portions of your chimney’s smoke chamber and smooth angles interfere with the flow of smoke up the chimney.
  • Glazed creosote removal – For difficult-to-remove glazed creosote, HeatShield’s newest product, Poultice Creosote Remover (PCR) is the answer. PCR causes the glazed creosote to break away from the chimney liner so it can be safely swept away.

Repairing your chimney with HeatShield

Whether you have a damaged tile chimney liner, an unevenly shaped smoke chamber, or a thick coat of dangerous glazed creosote in your chimney, the Chimney Care Co. can help. Call us at 513-248-9600 today to learn more about the amazing HeatShield products we offer— and schedule your appointment now!

By Jeff Keefer | Tagged with: Tags: , , | Leave a Comment

What is HeatShield®?

Your chimney may look good on the outside but can have hidden dangers lurking on the inside. A video inspection of your entire flue system is a good first step, as it will be able to spot missing or damaged mortar joints, cracks, and/or spalling that a professional may miss by doing a visual inspection alone after cleaning. If it is determined that you have a damaged chimney liner and repairing it is an option (which will save you a good chunk of change), HeatShield® can restore your chimney’s clay flue liner and save you the expense of rebuilding or relining with a stainless steel chimney liner.

What exactly is HeatShield® anyway? 
HeatShield® is a chimney liner repair system that eliminates the hazards and draft problems caused by gaps, cracks, and spalling in otherwise sound masonry chimneys. It is a specially formulated “cerfractory” coating, which combines the strength of a high-fired ceramic with the heat resistance of high temperature refractory cement to restore the integrity of your chimney’s flue. This restored integrity allows your flue to properly vent hazardous flue gases up and out of your home.

Developed in Europe over 20 years ago, HeatShield® has been independently tested and has been found to exceed all American Society for Testing and Materials (ASTM) and Underwriters Laboratories (UL) Outlines of Investigation for chimney repair and resurfacing products.

What options are available to me?

HeatShield® provides several options to address varying degrees of chimney liner deterioration:

  1. Joint Repair System—recommended for the repair of defective mortar joints
  2. Resurfacing System—recommended for cracked or spalling chimney liners
  3. CeCure Sleeve Relining System—recommended for chimneys with more serious defects or those that are unlined

Your certified chimney professional will be able to let you know which option is best for your particular job depending on the severity of the identified defects. Each of the available options will help restore your chimney to its original peak level of safety and efficiency in a very timely and cost-effective manner.

The sealant is supplied as a dry powder that your chimney professional then mixes with tap water immediately before use. Once it has been applied, the compound dries to a hard ceramic-like material that’s both moisture- and corrosion-resistant. Once allowed to cure, it has been proven to withstand moisture, corrosive flue gases, and temperatures in excess of 2,900°F. ASTM rated it as a “Super-Duty” refractory mortar, which more than meets National Fire Prevention Association (NFPA) and International Residential Code (IRC) requirements, as both only require “ Medium-Duty” refractory mortar for use in fireplaces and chimneys.

Remember that not all chimney liner repairs and systems are the same. For very severe flue system damage, it is possible that HeatShield® will not be the appropriate option. Chimney repair is nothing to mess around with; following professional and manufacturer instructions as well as local building and fire codes is an absolute must. Contact Chimney Care Company to schedule your next chimney inspection sooner rather than later so we can ensure that your flue system hasn’t been compromised. You owe it to yourself and to your family to take this issue very seriously. Your lives depend on it!

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Chimney Care Company | 413 Wards Corner Road, Loveland, Ohio 45140