[Canadian Man]

Beverly,

My basement is quite humid as that's where the tank room is.
The tank room is kept between 50% and 60% depending on the outside temp/humidity. The rest of the basement in this weather (10 Degrees today) is about 50%. I use a humidifier in the basement to keep the humidity alway's above 45%. That's purly for my fleet of guitars I have.

When it was cold last week the humidifier was on quite a bit to keep that 45% mark in the basement.

The rest of the house is about 10% to 20% lower than the basement.


When I purchased my humidifier mesurer thingy I got the good old fashioned type with the temp/humidity guage on it. I went into the store and compared the 20 or so they had on the shelf and picked the ones that were reading the same.