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Smoke Chamber Repair

The Smoke chamber is the area directly above the fireplace damper that helps smoke find it’s way up into the flue. Shaped like an upside-down funnel, smoke and hot gases are in direct contact with the tapered smoke chamber walls as you burn your fires. For this reason, building code requires that the smoke chamber walls be at least 8” thick and “parged” smooth.

Chamber Tech 2000 is a specialized mortar engineered specifically for smoke chambers.

Chamber Tech 2000 is a specialized mortar engineered specifically for smoke chambers.

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Newly parged smoke chamber.

Newly parged smoke chamber.

Smoke chamber walls without proper insulated parging make it more difficult for your chimney to draft properly and can be a major fire hazard.

Smoke chamber walls without proper insulated parging make it more difficult for your chimney to draft properly and can be a major fire hazard.

Parging is the process by which the inside surfaces of the smoke chamber are sealed with a layer of mortar in order to close off any holes or gaps where heated flue gases or carbon monoxide might escape, possibly causing a fire or physical harm to the occupants.

In some cases, the smoke chamber has not been parged, or holes in the parging may be present. In addition, sometimes the bottom flue tile is not sealed properly to the smoke chamber.

Cracks and holes in the smoke chamber can be very dangerous.

Cracks and holes in the smoke chamber can be very dangerous.

Cracks and holes in the smoke chamber can be very dangerous.

Cracks and holes in the smoke chamber can be very dangerous.

CHAMBER-TECH 2000 is a specialized insulating mortar specifically designed to address smoke chamber deficiencies. Able to stick to vertical and inverted surfaces, CHAMBER-TECH 2000 can be applied and smoothed on the smoke chamber walls to seal off and insulate this critical area of your fireplace system.

Unparged smoke chambers create more friction and turbulence, and can allow excessive heat to pass through the smoke chamber walls and start a fire.

Unparged smoke chambers create more friction and turbulence, and can allow excessive heat to pass through the smoke chamber walls and start a fire.

A smoke chamber parged with Chamber Tech 2000 significantly decreases the chances of an accidental fire and increases draft.

A smoke chamber parged with Chamber Tech 2000 significantly decreases the chances of an accidental fire and increases draft.

CHAMBER-TECH 2000 will insulate, reducing conduction to combustible materials, adding needed structural strength and at the same time shaping the smoke chamber to help reduce turbulence and establish a strong draft to keep your fireplace from smoking up your home!

Don't continue to use your fireplace if your smoke chamber is in need of repair!

Don’t continue to use your fireplace if your smoke chamber is in need of repair!

Smoke chamber BEFORE parging.

Smoke chamber BEFORE parging.

Smoke chamber AFTER parging.

Smoke chamber AFTER parging.

Installing rear access doors will make future cleanings of the smoke chamber much easier. Let’s talk about whether this chimney upgrade/repair will work for you.


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I just wanted to thank you for your expert advice at my last chimney cleaning. We were looking to purchase and install a new wood stove in order to keep our home warmer during the winter, and although it wasn’t directly related to having our chimney swept, your technician took a lot of time to go over several features and designs that were good, and told me several things to watch out for when purchasing a new wood stove.

Needless to say, I could tell this guy knew what he was talking about! It was nice getting an impartial opinion from someone who works with wood stoves all day long!

Suffice it to say that when our new wood stove is installed, we’ll continue to have A to Z out to clean it! You guys are awesome!

~ Allan Stuckin, Fair Oaks, CA
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