The hardwood floors in my house were installed after the baseboards so the lower 3/4 inch of the baseboards is covered. This is real tongue and groove oak hardwood floors which I want to keep but the baseboards have to go because I'm redoing the walls. Some of the baseboards are installed directly to the studs, some over drywall, all with 8d trim nails. Half the nails are about the level of the top of the floor. The wood floors is butted tight up against the baseboards which is part of why they need to go: no expansion gap.
I've been removing the baseboard by prying off the exposed part, pulling the nails with end cutters, then prying out the bottom part. The baseboards are mostly white pine so they cut and split easily but it's still slow and I have to break up a lot of the wood with a hammer and chisel while trying to not to damage the floor. Is there a better way?