I would love an HRV one day...
But i now have a little over 1000g of water and 2300w of halide in a small room and no humidity problems at all.
Even with some evaporative cooling in the summer.
That being said, i do turn over a huge amount of air in the room its in.
There is an 8" elicant inline on a dehumidistat, but i run it full time for the air movement.
Also pulling from the canopy is a 4" fantech inline fan and also vented outside.
There are 2-5" fresh air intake vents in the same room.
If good inlines are used there is next to no sound...both of these fans in unison still arent as loud as my bathroom fan.
I would guess a total of 1000 cfm is moving in the room at any given time in the summer, in the winter canopy heat is directed back into the room for heat recovery and then i rely soley on the dehumidistat for humidity removal.
I Agree with Doug, it is 100% dependant on your climate...but i think our average BC climate is ok for this scenario.
Marc.