I am restoring some 180-yr-old pine floors that are splintery in spots, and I plan to use Total Boat Penetrating epoxy on the splintery spots to "glue" it together. I was planning on thinning it with denatured aclcohol, at least for the first coat for better penetration. Do I need to worry about doing this indoors in the winter with a gas-fired boiler running in the cellar? I plan to apply at the end of the day and leave, so ventilation for health isn't really much of an issue. The house is unoccupied. The warning labels on the denatured alcohol have me worried about explosions. Last month I was coating a bunch of storm windows indoors with Smith's CPES. I never gave the explosion issue a second thought, and it was not a problem, other than the smell. Would the Total Boat, thinned with denatured alcohol, be any more flammable than straight CPES (which I understand has a hefty amount of VOCs in it)?