thats why I have a gap between the wedge and push plate. If the piece fits between them, it will fit in the furnace. Couldn't have gone with a longer stroke, unless I cut it down. The beam is used was just long enough for the cylinder thats on it. Learned a lot building this one, and will be making quite a few changes on the next one.When I built my splitter I used a 4 foot long cylinder that was readily available for cheap money. The longest logs that I can split with it is 26". That was what I used to burn in my previous Nashua stove.