First Smoker Build - What am I doing wrong?

[noodles919]

First time building my own smoker. Not sure if picture is on here. Air compressor as firebox. 4 inch pipe from box to smokehouse. 3 inch pipe on side as damper. Soon as I close door to firebox fire dies. What am I doing wrong?

 

[SMOKEOCD]

You need a way to adjust how much air gets into the firebox. Run a fan at the 3” opening and see if it’s any better. Maybe a cheap variable speed fan can solve your problem. Otherwise I’d turn the dome into a door that swings open for full control of the fire.

 

[noodles919]

I did have a box fan at the damper. Had it on all 3 speeds and no difference.

 

[SMOKEOCD]

It has to be airflow . Close the lid, cut off air, fire dies. Is your fire on some sort of grate to allow air flow underneath?
I’m just going by mistakes I’ve made in the past.

 

[noodles919]

You need a way to adjust how much air gets into the firebox. Run a fan at the 3” opening and see if it’s any better. Maybe a cheap variable speed fan can solve your problem. Otherwise I’d turn the dome into a door that swings open for full control of the fire.

Yes I have 2-3 inches under my grates in my firebox. I thought that was my problem but issue still exists.

 

[radioguy]

The air inlets opening is too small. My guess is make it 4 times larger. Guessing without measurements. Air inlet should be at or below your fire. Please give us dimensions, lengths. A few most pictures will help too.

RG