we have a new cellar 15w by 32 long &7 high 12 inch solid walls 6 inch roof all concrete .about 3 feet of it is sticks out of the ground, theres a little sweating it has 2 vents in the back next to top 12 inches by 8 in. do we need more vents or do we need to plug them off while its cold around 20 degrees
Little Mom I am replying to your PM here because others might be able to add some info. I would use any fan you have. If you have oscillating fan use that. Leave the vents open. The sweating is from the cold concrete above ground being colder then the dew point inside. Moist air inside touches cold concrete. You could insulate on the outside with foam, dirt straw what ever you have to keep the concrete close to the same temperature as the air inside. I would just start with the fan and see how that works.
If you put the vent inlet at the floor at the opposite end form the vents you should be able to save on the fan. mikell
