How do you use a "smoke box"?

I bought a smoke box to try on my pellet grill. I filled it with pellets & lite the end with a propane torch - twice. Couldn't keep it burning. Are you suppose to use wood chips instead of pellets? I must be missing something.

The wood chips go inside the box (pellets would probably work just fine) and the box goes on top of the flame. The wood/pellets in the box smolder and smoke. It is supposed to be used on a gas grill. If you have a pellet grill already, the burning pellets will create the smoke.

Get the pellets burning good with the torch and then it should keep burning. Make sure your pellets are good and dry. I have used the tube in my pellet smoker when I wanted more smoke, never used a box.

An actual smoke box is designed to be used with wet wood chips and set on the flame of a gas grill. If you want extra smoke with a pellet grill, use something like this.

https://www.tractorsupply.com/tsc/p...WLNmdoDh6mfs6AeqOhWsh4ItkKhoCrPEQAvD_BwE

As the OP, I guess I used the wrong term. It is a "smoke tube" & I placed it on top of the grill next to the roast I was cooking. It looks similar to the one topwater referenced except it is rectangular & not round. I didn't know there was such a thing as a smoke box.

Thanks for all the replies.