The small Sun Joe woodchipper I was referring to is this...
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I bought this woodchipper about 5 years ago. I see it is currently unavailable on Amazon, maybe they have a newer model now.
For small branches, less than 1-1/2 inch round, it does a good job chipping up the wood. It makes nice chips that I use in my brooder and nest boxes. If you have small branches in the yard after a strong windstorm, then this little unit makes something useful out of all that wood.
I also have a larger 5HP gas woodchipper that can chip up to 3-inch branches. That, of course, is faster and much more powerful. But it is a real PITA to get started whereas the electric chipper works every time I plug it in.
I have to be honest, however, and tell you that I really don't use either of my woodchippers much anymore. I found I could load up all the free wood chips I can haul in my utility trailer at our local county landfill. It takes me about 20 minutes to fork in a full load of wood chips on my 4X8 foot trailer at the landfill. If I had to chip up that same amount with either of my woodchippers at home, it would take me hours and hours and hours.
To take that scenario one step further, it took me about 30 minutes the other day to chip up some small branches I picked up off the yard and I got about one full 5-gallon bucket of woodchips. A 5-gallon bucket is equal to 0.67 cubic feet. At that rate, it would take me almost 24 hours to chip up enough wood to fill my 4X8 foot trailer that holds 32 cubic feet. That's the trailer that I can load out in about 20 minutes at the landfill with their free wood chips.
Additionally, my chipper blades are only sharp for about 3 hours of run time and then I have to resharpen them. For the electric chipper, the blades are double sided so I can flip them over. Still, I estimate that I have to remove and sharpen those blades every 6 hours of run time.
Obviously, for me, having access to all the free wood chips I could ever use from our landfill is a much better option for me if I need a large quantity of woodchips for something like the chicken run. If I only need a bucket full of fresh woodchips, for the brooder or the nest boxes, then my little electric Sun Joe chipper works fine.
As far as using the electric chipper to chip up pallet wood bits and pieces (less than 1-1/2 inch) it did a good job, but very slow. I think it took me almost an hour to chip up a 5-gallon bucket of pallet wood bits and pieces and it yielded about half a 5-gallon bucket of chips. I only did that one time. After that, I just saved those pallet wood bits and pieces, and larger pallet wood cut offs, and dumped them in my hügelkultur raised beds. For me, that was a better use of my time and labor.
My last option for using any wood on my property is to burn it. But even then, I use it to burn out stumps, so it still has some value to me in burning it. I always have a stump or two that needs to be burned out every summer. I just roll one of my fire rings to the stump and set it up there as a campfire. Probably takes all summer to burn it out a little at a time, but that's OK with me.