For all you who have a commercial model Cookshack in a food operation (with a Cookshack hood attached), do you just pipe the smoke to the outside or do you put the whole thing under a second commercial hood/venting system?
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Mine sits under the main exhaust/make-up air hood system.
If you choose to direct vent outside, do not attach a vent pipe directly to the CS top vent hole.
If you choose to direct vent outside, do not attach a vent pipe directly to the CS top vent hole.
I actually have a CS smoke hood attached to the top. I'm just trying to figure out if it would pass code to vent the hood outside without the aid of a big commercial ventilation system.
It should, but check with the local Fire Dept. and you might want to check with your insurance underwriter as well.
We have two model 150s with the Cookshack hood. We just vent the hood to the outside. Cookshack has a great letter regarding testing on the 150 with their hood. No other hood should be required. Contact CS customer service and get a copy of the letter and show it to your regulator. If you have smokers larger than the 150 you may need a regular hood with Ansul. This was one reason we went with two 150s rather than the larger model.
A follow-up on this: For those who use the CS hoods, how did you go about venting it? i.e., what materials did you use and such? Did you have to get stuff fabricated? The opening on top of the hood doesn't seem like a very standard 'stove pipe' size.
The opening on the 150 hood has a PVC pipe fitting mounted to the exit of the blower fan. You simply vent to the outside using PVC pipe. We came up about two feet and into a 90 degree elbow and then out the back wall. There is no high temperature involved so the PVC works fine.
I'll admit that I was skeptical at first but it worked without any problems and our inspector thought it was the neatest thing he had seen. The key is to have a copy of the test report letter from CS. Otherwise the regulators will never accept installing these without the larger expensive hoods.
I'll admit that I was skeptical at first but it worked without any problems and our inspector thought it was the neatest thing he had seen. The key is to have a copy of the test report letter from CS. Otherwise the regulators will never accept installing these without the larger expensive hoods.
John, how far up does your PVC extend out the back wall? thanks for the info. very helpful. I"ve been looking into actual woodburning stove chimney kits but wasn't sure that was necessary for such low temps.
the 150 hood must be different than the 250. The outlet on my 250 hood is a rectangle approx 3"x4".
the 150 hood must be different than the 250. The outlet on my 250 hood is a rectangle approx 3"x4".
We went up from the smoker exhaust fan flange about two feet to a 90 degree bend to the back wall. We went out the back wall about one foot and then put another 90 degree elbow pointed toward the ground. This was done to keep rain from coming back into the piping to the smoker. The only thing sticking outside the buiding was the one foot of pipe with a 90 degree elbow turned down. It's that simple. The 150 hood does use round pipe. The exhaust fan exit flange has a PVC end cap mounted to it. The end cap has a hole drilled to allow the smoke to exit. The PVC pipe is the white 4" PVC sewer pipe. I do think there is a difference between PVC sewer pipe and PVC schedule 40 water pipe. I took the PVC end cap with the hole in it off of the flange and took it to the local home depot so I got the correct size. I did not even cement the sections of pipe together so that we could eaisily remove to clean. There is a residue that builds up over time. We cleaned it once every couple of weeks. This is all much more simple than it sounds. Happy plumbing.
Thanks for the info. I wonder why the 150 exit flange is round/pvc-compatible while the 250 hood is not. Guess I'll have to have some kind of adapter fabricated. Yippee.