I bought a new home couple of month ago and need to install humidifier. After reading some blogs i am confused that i need humidifier for winter only or for winter and summer ( for AC and heat). Attempted unsuccessful search on Google to find one for both AC and heat. Not sure if it exist. My house is 2500 sqft located in Washington DC(USA) area. I have two units one for ground and main level and second for top floor. Questions in my mind are, what humidifier( Honeywell/Aprilaire etc.) should i buy and of what capacity, Do i need to buy for both units, which one is best (by-pass duct/in duct), Do i even need it for summer.
Appreciate suggestions !!