5 Humidifier Mistakes That Are Rusting Out Your Furnace (And the Setting That Fixes Dry Air)

🔧 Everything I learned fixing HVAC for 25 years, in one plain-English book. 📘 THE HVAC SURVIVAL GUIDE - get it here: https://raydutton.com That snap of static off the doorknob is dry winter air, and it's why so many furnaces have a humidifier on the ductwork beside them. It runs water over a pad while warm air blows through it. When that water goes anywhere but your air or the drain, it runs into the furnace, and a twenty-dollar pad turns into a control board that can cost seven hundred dollars. I spent twenty-five years walking up to wet furnaces in the winter. In this video I go through the five humidifier mistakes I saw rust them out: the dial everybody reads like a thermostat, the humidifier wired to the fan instead of the heat, the pad nobody changed, the drain hose, and the slow leak inside you can't see from outside. For each one I show you how to check it yourself, what the fix costs, and the right setting for dry air. At 20 degrees outside, that's about 35 percent humidity inside. CHAPTERS 0:00 Static shocks and the humidifier on your furnace 0:36 1. Reading the dial like a thermostat 1:12 Why a dial turned all the way up never shuts off 1:47 The setting that fixes dry air 2:39 2. Wired to the fan instead of the heat 3:49 The 5-minute drain hose test 4:24 The one humidifier this doesn't apply to 5:03 3. The pad nobody changed 5:43 Changing the pad 6:04 No water at all: the valve and the summer setting 7:09 4. The drain hose 7:57 The 2-minute hose check 8:24 5. The slow leak inside 8:51 Where the water lands, and what it costs 9:49 How to catch it early 10:10 The question to ask before a new board What number is your humidifier dial on right now? Tell me in the comments. I read every one. I'm Ray Dutton. Keep your cool, and I'll see you in the next one. #humidifier #furnace #dryair #hvac #wholehousehumidifier #furnacerepair #hvactips #homemaintenance