Product review (5 stars): The right product for the job
We've been using these Aprilaire evaporator panels for several years, ever since we installed our new furnace. Even though we have a whole-house water filter, the panels need to be changed regularly, since deposits build up and impede their function. Fortunately, they're not difficult to replace. But if properly maintained, the panels and the Aprilaire humidifier really do their job, which is to keep the air in our forced-air heating system moist and breathable during the cold, dry winter months. Good product.