I don't use any natural gas anymore, I don't trust natural gas.Electric
heating and electric water heater and electric stove.I might get rid of
the floor furnace in my living room too.Each one of the floor furnace
floor openings/holes in the floor (hardwood floor) measures about 31''
by 21'' That is enough room for me to squeeze down under there.If a
tornado hits and I can't come up I can crawl over to the crawlspace
opening (house sits on a concrete foundation) by the side of my house.
cuhulin, a Survivor, I Hope