When we lived in ND the winters were very cold, and very dry. I remember my parents would keep a pan of water on one of the ducts coming off the gas furnace in the basement to add water/moisture to the air as the hot duct evaporated water. Might try something like that.
My oldest son told me something that may seem hard to believe, but it has to do with gas furnaces/stoves and humidifiers.
He bought a humidifier to run in his condo due to the dry air issues this winter causing him some skin irritation (haha! wait till he get to be old if he thinks dry skin in the winter is a problem when he's 40). He got up the other morning and was going to cook some breakfast and when he turned the big burner on his gas stove on he noticed the flames were a weak yellow color, not the usual bright blue.
He suspected the air mixture adjustment for that burner and shut it off (yellow flame tips can result in increased CO being generated due to inproper burning of the gas). Then he tried all three of the other surface burners and found the same thing on all of them. He didn't believe he had somehow gotten all 4 burners mixture adjustments to go wonky all at the same time.
He sat down and began to surf the internet looking for reasons for yellow flame tips on a gas stove/burner. He said the fifth article he found suggested high humidity can cause this issue. The next night he left the humidifier off and the following morning the flame tips on all four burners were normal, bright blue. After breakfast he turned the humidifier back on and left for work. When he got home he turned the stove on again and it was back to yellow tips on the flames.
Something to think about if it gets "too" humid. I'm supposing some of the better humidifiers my have a combination on/off setting with a gauge to read humidity and be able to control it within a range vs. "not enough" or "too much." I don't know that as I've never bought one or fooled with one.
