Hi, We bought an older house with a 1982 Fisher Grandma bear/Teddy bear wood stove. It has the metal plate still on the side giving the info about it. I was wondering if you need a metal grate in it or not. Im hearing no, but there is one in it that looks like it has been used a lot. Also what's the best temp to run the stove out to heat up the house? Thanks for all your help!