20 years? It's probably bout ready to fire up then!My stove like that has sat on a plywood floor for the past 20 yrs and i never had problems.
The issue here is that its a zero tolerance situation.
The only way that you know there is a problem is after your house is on fire!

![[Hearth.com] Vacation trouble! [Hearth.com] Vacation trouble!](https://www.hearth.com/talk/data/attachments/130/130702-cf0312ccb231d569fdef6efc58164190.jpg?hash=tC8zk5-5Gs)