Old, empty house — preventing mold
I have a small, old house in Transilvania (Romania) that is empty. The windows do not close well,
and the house has two very old masonry heaters w. gas that are extremely inefficient. The house will stay “as is” until spring time. The climate is quite cold, outdoor RH usually varies between 65-95%. Temperatures vary between 50 to -13 F. The total surface of the house is 65 sq m (around 585 sq ft). A friend is airing the house once a week. The pipes have been emptied, the water is shut down. The 2 masonry heaters cannot be used unless someone goes there at least twice a day to fire them up and then turn off the gas. Trying to heat the house w. them is also very expensive.
I am trying to figure out what my best options are to minimize spending while preventing mold. I considered maybe keeping all doors open and buying a dehumidifier with a thermostat and/or a radiator w. a thermostat. But there are so many variables that I do not know what to consider as a safe option that can run without supervision and that will not cost an arm and a leg. If I buy a dehumidifier, I do not know if it will prevent mold and if I have to stop having the house aired periodically.
Any advise will be appreciated.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part