What's the best brush for an 6" x 10" stainless steel insulated chimney flue liner?
A friend lent me his square metal brush and though I was concerned about scratching the liner I used it anyway. I could tell it was not reaching the inner bends in the oval. I saw a chimney sweep with what looked like a giant feather duster on flexible rods turned by a drill. But I can't find anything like that on the chimney supply websites only the plastic whips, weed wacker style.
A friend lent me his square metal brush and though I was concerned about scratching the liner I used it anyway. I could tell it was not reaching the inner bends in the oval. I saw a chimney sweep with what looked like a giant feather duster on flexible rods turned by a drill. But I can't find anything like that on the chimney supply websites only the plastic whips, weed wacker style.