We have a large "used brick" external wall fireplace chimney structure, three flues, two fireplaces and one stove. The structure still looks fine, albeit old (as intended), the mortar is in good condition, but....
We had "our" chimney guy in today to do a roto-cleaning to remove some of the creosote glaze that has accumulated over the years due to the operation of insert that was simply dumping its smoke into the fireplace. We had this service performed to help remove/reduce a chimney/old-fire odor that has developed in recent years. He noted that there was some condensation inside the chimney...this could contribute the odor generation. I asked if there was someway to seal the brick and he said "yes", he has a process/product that is sprayed on the external brick area, including the apron at the top of the multiple chimney stack. He said this spray soaks in and is invisible, but does stop water penetration from the outside, while allowing moisture inside the chimney to evaporate.
Any experience/advice?
Thanks,
Jerry
We had "our" chimney guy in today to do a roto-cleaning to remove some of the creosote glaze that has accumulated over the years due to the operation of insert that was simply dumping its smoke into the fireplace. We had this service performed to help remove/reduce a chimney/old-fire odor that has developed in recent years. He noted that there was some condensation inside the chimney...this could contribute the odor generation. I asked if there was someway to seal the brick and he said "yes", he has a process/product that is sprayed on the external brick area, including the apron at the top of the multiple chimney stack. He said this spray soaks in and is invisible, but does stop water penetration from the outside, while allowing moisture inside the chimney to evaporate.
Any experience/advice?
Thanks,
Jerry