I dont run the latest version, but they do not deal any block damage as far as i noticed, it still kills me if i'm closer than 4 meters when it goes boom though. i just assume the block damage property is set to very low or it's non existent, so you may wanna just turn that up a bit if you wish.under the mod config folder, you'll find the entityclasses.xml, open that, and search for demolisher, then look into the code for the following property:
Code:
<property name="Explosion.BlockDamage" value="0"/>
set that value anything above 0, let's say..
Code:
<property name="Explosion.BlockDamage" value="250"/>
so that will be enough to break any wood blocks or block with durabillity under 250 in a 1 meter radius. same goes for radius, can be increased as much as you want.