i have a large shed which I have fully insulated and put passive air vents on either side of the gables. I am finding a lot of condensation in the gym and was wondering if a bathroom extractor fan or dehumidifier may help the problem or is there anything anyone can recommend please The more I heat the shed it gets worse my metal is drenched thanks Steve
yea you'll need plenty fresh air using a shed as a gym, I remember doing lots of 'exercise' in the back seat of my 1969 morris oxford when i was a lad, the windows steam up after a few minutes