How do you know you need a sweep?
You really wouldn’t notice anything until it’s too late. Creosote builds up and there’s no sign of it happening. Once it builds up to a certain level and temperature, you will have a fire. The National Chimney Guild states you need to look at these elements:
- anything over an 1/8th inch of build up in any area of the chimney is determined unsafe. You need your chimney swept.
- Any chimney in use needs to be inspected once a year.
- You need your chimney swept for every cord of wood you burn in a fireplace or a wood stove.