Installed a new furnace humidifier to replace a non-working(probably never used) vintage humidifier 14 days ago in a new place I bought.
Confirmed a small gap let a slow drip from condensation that is now visible in spots near the bathroom ceiling(discovered wet spot 1 day ago. Didn't notice spots when replacing bathroom lights 3 days ago so likely very recent).
Wood floor/ceiling in furnace humidifier crawl space above bathroom shows moisture in some areas but it dries pretty quick(it's hot/dry in that tiny room but seeped down floor cracks and wall opening: no permanent warping of wood or even long term moisture marks despite being slowly soaked regularly for 1-2 weeks). Some small yellow water stain damage on wall next to furnace near
FYI: the white spots in the wood floor are from saw dust. There is no visible yellowing/dirt on the drywall and it seems to be rigid. Moisture was more visible but turned off humidifier last night(dried very quickly).
I'm getting a mold test pronto, humidifier turned off, sealing the ductwork gap, dehumidifier(?) but worried about long term mold risk and if I should get mold inspection? Do I even need a dehumidifier rental for the bathroom if humidity in my place to 15-25 without the humidifier on? Wood has dried completely in a few hours already.
I use an ecobee thermostat to control the humidifier/furnace so below are stats:
Humidity in the place has never risen above mid 50s(all window corner unit in chicago winter) and usually hangs around 35-48(according to sensors) for the past 2 weeks. Max I've seen it ever is 53(temporary after shower or dryer was run). The bathroom has a humidity sensor controlled fan that turns on for 30 minutes if humidity ever hits 60%+ in the room. Indoor temps hover around 63-75(58-63 at night and most of day when away; 68-75 when at home).
EDIT: My furnace air filter is rated MERV 10(installed 2 weeks ago) so most mold spores if in the air were likely caught