I wish i knew the answer for you mine does the same thing..i have used every remedy mentioned including (Bitter apple spray & hot sauce)
and they like it..I have put them in xpens explained to them that the couch that they chewed cost big bucks and all of my woodwork needs replacing and a sheetrock wall in the bathroom..
there are lots of toys but they prefer eating the house..does anyone know a good doggie dentist