outdoor grill design drawing / questions

[brokencookie]

I came across this nice looking design for an outdoor oven/ grill. It looks quite doable but I am wonder about the 4 inch drop between the edge of the grate and the entry to the chimney. Is there a purpose for this. I have see other plans that have the air entry to the chimney at the same level as the fire. Does this barrier increase heat or increase air flow ?


Bruce

[christo]

Re: outdoor grill design drawing / questions

Can you post a larger picture? Can't quite read the one that was posted.

Thanks!!!

[brokencookie]

Re: outdoor grill design drawing / questions

Ok
Hopefully this one is better

Thanks

Bruce

[brokencookie]

Re: outdoor grill design drawing / questions

Still kind of small

Let me try one more time

[brokencookie]

Re: outdoor grill design drawing / questions

It must be me. I am trying to load this file as a PNG. It is a snapshot from a PDF. If it is still too small check this link

http://www.lsuagcenter.com/NR/rdonlyres/F58A9F61-FD2F-4C6B-A917-1FFD5806A521/15178/6259CampStoves.pdf

and look at Concrete stove #1.

Thanks

Bruce

[dmun]

Re: outdoor grill design drawing / questions

The PDF you linked to had two pages, one blank and one a disclaimer paragraph. The images were too small to read the dimensions. From what little I see, it is a convoluted air flow. And, how do you grill with an iron plate on top? Does that come off when you're grilling?

[christo]

Re: outdoor grill design drawing / questions

You're right the drawing calls for a flat iron top - it's really a drawing for a camp stove I bet the thougt is to replace the flat iron plate with a grate.

Without the flat iron plate - it would not draw up the chimney. I'd also bet it took a while to establish a good draw even with the iron plate.

It took a while for the first page to fully upload but the first page is there....

Christo

[brokencookie]

Re: outdoor grill design drawing / questions

Thanks christo. I'm going back to plan A for the BBQ. I have actually seen several plans for a "brick BBQ" with the chimney in the back. Your explaination makes perfect sense. I was considering using an iron plate to help redirect the smoke somewhat like an offset smoker. This should be a lesson to me. Stay with the KISS principle ( Keep it Simple, Stupid)