Today the boss had me stop by one of our restaurants that we service to take measurements for them and see what it is exactly they wanted done.
Well turns out the general manager for this chain wants these exhaust (flues) extended and ran directly up into this exhaust hood's intake to the exhaust fan.
That is a Pizza oven and a bread oven on the right.
The managers in the store said they think NOTHING is wrong as you can feel the heat radiating from the ovens ONLY if you stand right against them, but otherwise everything is exhausting normal.
For some reason the general manager thinks them flues should be ran up into the intake of that exhaust hood. I guess he is thinking it will run cooler. The managers in the store think it will have ZERO effect on the heat radiating from the ovens themselves, and I agree.
I've never been asked to do such a thing and it is working properly as it is supposed to.
But one scary thought came to mind when I was measuring to extend the pipe...
What happens if you actually run the flues directly into that intake in the middle of the hood? Will the extra "induced draft" cause something bad with the burners?
I just don't think it's a good idea. And come Monday I need to go back for something else, and plan on writting up my recommendation. Most likely that it is a BAD idea to directly couple the flue vents to the exhaust intake!
What do you guys think?