Originally Posted by
Septimus
You can not have two elements at once, but you can get equal amounts of earth and fire furniture, and remove one item to tip the balance one way or the other.
For example, 7 bookshelves should give you a powerful fire element (along with 28 storage spots and elemental power of 56), and 13 tarutaru desks will give you a powerful earth element. (And 26 storage spots with an element of 52.) When you are synthing with fire crystals you can leave the furniture as is since there is more fire than earth, but when you want to synth with earth you have to remove one bookshelf to make earth dominant.
The question is, is there enough room in your mog house layout for 7 bookshelves and 13 tarutaru desks.