We live in Maine, and the condensation on our windows was extreme, to the point that our skylights were actually raining. We were a bit unsure about what size dehumidifier to purchase but decided on the model that was for a fairly large square footage. Our home is a split level (circa 1967), but we had already addressed insulation improvements and air leakage. We set the new humidifier to 40 humidity, and found that we were pulling significant amounts of moisture out of the air, and that we no longer have problems with condensation on windows and skylights. Customer support has been excellent, and we are very pleased with this purchase.
Rating: [5 of 5 Stars!]