Offset smoker 250 Franklin style.

Horizontal smokers with a side firebox and tuning plates.
stijntje113
beginner
beginner
Posts: 6
Joined: July 8th, 2017, 3:55 pm

Offset smoker 250 Franklin style.

Postby stijntje113 » January 3rd, 2018, 1:09 am

I have announced the built of a 250 gallon offset smoker. Bought it for 50 euro and the goal for the smoker was to make it a real low budget built.
Almost everything is bought second hand.
I have started the build but I have q question that came up.

First some pictures from the steps till now. (excuse my writing I'm not native english speaking)


Image

Image

Image

Image

Image

Image

Image

Image

Image

Image

Image

Image

Image

Image

Image

Image
For the firebox I've bought 3 metal plates from the scrap yard 250cm x 125 cm 4 mm thick. (for 100 euro)
One is used as bottom.
Image

Image

Image

Image

Image

Image

Image

Image

Starting to grind out the dors of the from. (FB & warmer)
The dimensions of the complete block are 74 X 74 X 125 cm. The firebox will be 65 cm high.

And that is also what is my main question. If you see the troath opening from the FB to the CC, it is about 2 cm from the top.
For a smooth airflow do I need to extend it to the top completely?

Image

As outlet/exhaust I have a pipe 16 cm wide and about 100 cm high. According to the calculator it is ok but if you keep the principle of Franklin in mind with the higher airflow do you think it will be sufficient?



User avatar
Rodcrafter
Moderator
Moderator
Posts: 7653
Joined: July 21st, 2012, 5:46 pm
Title: Member
BBQ Comp Team Name: Not competing yet...
Location: Orlando, Florida

Re: Offset smoker 250 Franklin style.

Postby Rodcrafter » January 3rd, 2018, 8:04 am

As for the throat opening, you are close enough to not cause a turbulent air flow. I wouldn't change it since you are where you are in the process. As for the stack size and length, I know the calculator works. That doesn't mean you can't make it longer, just consider putting a choke of some kind on the top of it so you can reduce the airflow if you find that it is needed. All wood doesn't burn the same, some needs more draft than others.

jm2cw


Current Smokers: Backyard RF Offset and Hybrid RF Offset trailer rig with Cowboy cooker and fish fryer, always room for more........

User avatar
Big T
Expert
Expert
Posts: 4118
Joined: September 1st, 2013, 2:40 pm
Title: Go Getter
BBQ Comp Team Name: Backyard Boys
Location: Lower Alabama

Re: Offset smoker 250 Franklin style.

Postby Big T » January 3rd, 2018, 8:48 pm

:yth:


Measure Twice.....Cut Three Times.

stijntje113
beginner
beginner
Posts: 6
Joined: July 8th, 2017, 3:55 pm

Re: Offset smoker 250 Franklin style.

Postby stijntje113 » January 4th, 2018, 2:15 am

Thanks!

I can easily make the opening higher. (think I'm going to do that)

I will leave the exhaust as is. If it doesn't work I can extend or replace it.

Thanks for the tips! If you've got any more..!




Return to “Standard Offsets”

Who is online

Users browsing this forum: No registered users and 1 guest