I need to offset my supervent chimney. I have the through-the-wall kit. From what I have determined is that I need to add 11 1/4 inches of offset for the mounting bracket. The kit comes with a triangle piece that is suppose to be mounted to the wall. This bracket takes the weight of the chimney, so it must be strong. I have thought about going to a welder to have some sort of bracket made but I am unsure of the nature of the bracket Has anyone offset a supervent chimney mounted to the wall? The chimney will be too far from the ground to have any sort of ground support.
If I understand the question: Supervent can not be offset on the exterior, only inside the attic. Second to the last question. SuperVent - Lowes USA ETA: I think I misunderstood. You need the wall bracket to stand off the wall further?
So you need to offset 11 inches from the wall? How much chimney are you supporting? 6" I assume? A wooden box made out of 12x12's lagged bolted to the wall should be pretty strong. Use some 3" construction screws to hold the box together.
Just in case you forgot, here is your thread that discussed this. But if you still have questions, fire away. The Chimney | Firewood Hoarders Club
Ok, I looked at the other thread and it looks like you want to extend past your soffit. Couple things to consider: 1.) The flashing that is typically used when going through the roof adds a lot of support to the chimney. You're going to need to add support 3-4 feet below your chimney cap too. 2.) You have to strap the chimney to the wall every 4' for so, which, in your case would probably be 1 support bracket. You'll need to offset that as well.
Yes, the entire chimney needs to be further from the wall than the standard support that comes with the kit.
This thread is specific to building the support brackets I need to replace the ones that comes with the through-the-wall kit. Chimney parts are on hand.
Yes, six inch of supervent. The height will be eight to ten feet for now, I may have to go higher for the ridge of the roof.
Yes, I have someone helping me with those brackets. Now I need to determine the support that supports the weight of the chimney. The wall supports are to keep the chimney upright and there will only be a normal force when the wind blows against the chimney.
Thanks for the image. I am thinking along the same lines except a flat horizontal piece at the top that the chimney will sit on that bolts to the wall, then an angle piece that will bolt to the house to support the top.
