Why pellets? Got a supply leftover from when you sold your Pellet cooker to go with a Cookshack...haha
Actually, the smaller pieces (pellets, sawdust & chips) will burn & smolder more than smoke.
I have heard of people taking them, wrapping them in foil and then putting that in the smoker. Haven't tried that so I can't recommend it.
Just go with chunks. Look at this, take a single log, chunk it and it will probably last a really long time since it only takes 2 or 3 chunks at a time.
But, try anything and let us know.
Smokin'