This right here is NO BUENO!! Moisture issues in the wood and/or low-idle fires..... Saw this on FB today and thought I'd pass it along....
This easily happens with dry wood and superb burning practices as well. It just takes longer. The problem is the screen. If you are not required by some odd local rule or rodent issues to have one then you might consider removing it. I did.
I'd say that's just horrible wood burning practice. Being new to wood burning, that is one of the things I've worried about the most. I have a bird screen on mine full time, 1/2" mesh just like that, and I keep an eye on it from the ground. Mine is 12 feet above my roof, so I have a round bristle brush taped to an old broom handle that I can use to brush it off if need be. Into my 3rd year of burning, I haven't really needed it. Highbeam, maybe I should consider removing it, but for now I'll keep monitoring. The facebook post tells people to not forget to remove it come wood burning season. If I was going to put birdscreen on temporarily, I wouldn't install it from the inside of the rain cap, I would wrap it around the outside to make it easy to remove.
I need a bird screen but have not pursued it for this reason! I burn 3-4 year seasoned wood and I know creosote would still build up on the wire. I don't want to go up there multiple times a year. Already had a starling completely plug my pipe once, what to do...
Spark arrestors are required by most insurance companies I've dealt with, I do know they have their pros and cons, the buildup can be a big con. I burn 5-7yr seasoned wood and still get some buildup on mine (namely from running my stoves at low idle), but have never had any buildup inside the flues. Extreme cold temps and snowy conditions can help cause that cap to clog up too.
In this particular instance, I totally agree. For buildup that badly in a half season, they're burning wet wood......
Really? The caps from duravent have this optional bird screen but it's certainly not a spark arrestor. Obviously, if this could jeopardize your home insurance that would be important information but I've never heard of such a thing. My chimneys were inspected by the AHJ without bird screens at all and passed with flying colors.
I think he was saying he smoked a joint in the spring and forgot to take it off in the fall blaming the weed, i dont need to smoke a joint to forget half the crap i need to do.
I agree.Looks as if plenty of tar filled pine was burned in that stove.The screen for me is too narrow.My screen is 3/4 " mesh.Narrow enough to keep the birds out and wide enough not to clog too fast.
If you must use a screen, I would use the biggest “legal” mesh you can get away with and be ready to clean it mid season. Keep an eye on it.
So...the pic in original post....how do you clean that? Take it down and burn it off in the yard? Spray with some kind of miraculous cleaner?
It will depend on how gooey it is. Mine plugged with dry stuff that could be brushed off easily from inside and out with a regular wire brush like for welding. Think dark brown cornflakes.
I've cleaned several screens that were almost plugged simply by tapping the screen and doing it from the ground. That got the folks through until summer when they could take it down to clean it totally. What I used was the poles we use for cleaning chimney. You do have to be careful and only tap lightly else you will destroy it.