Looking to see how the verify that stove is converted to LP. Stove is an older Vermont castings radiance model 2600 natural vent. Person who gave me stove said it was propane but they never had it hooked up they bought it from someone else. There are zero tags that state converted to LP and since it's been stored a while i imagine those tags have lost there adhesive back I g and gone away. Where can I look to verify before trying with propane? Thank you.