I’ve recently installed an Aprilaire humidifier on my furnace (southern MN, gas FA, 70s construction). Due to the lack of a convenient drain, it drains into a small-sized Flotec condensate pump which pumps up and across the ceiling to a drain on the other side of the room. When the humidifier is running the pump runs every 3.5 minutes. Worst case is probably when the outside temp is about 25F and the humidifier is running maybe 50% duty cycle (it forces the fan on to run).
I’m just wondering how long I can expect the pump to last in this service. (The area is unfinished and the pump has emergency shutoff contacts wired to the humidifier, so I’m not concerned about catastrophic failure.)