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Chimney Services » Chimney Installations » Poultice Creosote Remover (PCR)

Tough, Glazed-On Creosote in Your Flue? We Can Remove It With PCR

Most fireplace owners are familiar with creosote – that blackish, brownish substance that builds up in your chimney as you burn wood. One of the most notable things about creosote is that it’s highly flammable and is a big cause for chimney fires – which is why it needs to be regularly removed by a professional chimney sweep.

That said, not all creosote is the same. If it’s light and flaky or sticky tar-like, we can use the typical sweeping strategies to remove it. But there’s a third type that’s harder to remove and requires some more intensive techniques – that’s glazed creosote.

Chimney-flue-with-built-up-creosote-on-insideWhat Is Glazed Creosote?

Glazed (or 3rd degree) creosote occurs when layers of gooey creosote form on top of each other and eventually harden into a hard, glass-like substance. Needless to say, once it gets to this point, it’s extremely hard to remove – and it’s extremely flammable. 

For glazed creosote, a standard sweeping service won’t do. And while a rotary cleaning may get a small portion of it, it won’t get close to removing it all – and it can actually damage the interior of your chimney during the attempt.

So, what can be done? Well, for us the answer is easy – use Poultice Creosote Remover (PCR).

What Is PCR? How Does It Work?

PCR, or Poultice Creosote Remover, is a trusted product used to loosen the glazed creosote’s hold on your chimney walls. Once it’s applied to the stubborn buildup, it proceeds to dissolve and absorb it as it dries. Once it fully dries, it will fall away from the flue walls – taking the absorbed creosote with it in the process.

So, how does it work? Well, let’s start with the word “poultice.” A poultice is a medicated material or paste that is applied to wounds or infections to aid in healing. PCR works the same way, just with creosote. Like a paste applied to a body part to remove an infection, the PCR is applied to your chimney to remove its “disease” – aka the creosote.

Call Today for a Safer Fireplace Experience

Regularly clearing out creosote is essential when it comes to using your fireplace as safely as possible. If you’re concerned about the state of your system, get your annual inspection on the books today. We’d be happy to help you out.

Call 619-338-8116 or conveniently book online with us now.

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Excellent service! Dave was very patient answering all my questions and comments. Dave was very detailed with his work and took the time to explain what he saw and what he recommended for repairs. I would definitely recommend Weststar Chimney Sweeps to all of my friends and family who have fireplaces that need cleaning and/or repair. Thank you!!
~ Gigi Benter

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