New humidifier install question

wlee69

I'm planning on getting a humidifer installed in my house (~3300sq ft). My current setup is that there are two furnaces/zones. One for the top floor and one for the middle floor (basement unfinished)

My HVAC guy says its up to me if I want to get one Aprilaire 600 installed or to put one on each furnace. I'm thinking of getting one on each furnace even though one humidifer is said to be fine for houses even larger - is this overkill?? or will one humidifer work across the entire house effectively??

Thanks,Will

Winchester

Why not start with just one and see how it does? Use the supplied hydrogometer that comes with the 600A and try it out in different parts of the house?
http://www.alpinehomeair.com/viewpro...ctID=453058474