I'm remodeling my Dad's old farmhouse which was originally build in 1922. We kept 3 of the old fireplaces. We have some moisture/wetness in the fireplaces and can't seem to find a way to correct this problem. I don't think the fireplaces are safe to have a wood fire. I'm looking for ideas on how to fix the moisture problem without spending a lot of money so I can add heaters or fire logs of some types this winter.