I can afford a d/h right now, the only thing is it won't be entirely effective if my Vortex is on. And without the Vortex on, the house reeks! I could maybe put the Vortex and the d/h both on timers, and have the Vortex turn off for like 10 mins out of every hour and the d/h come on. Still, I do think the house will start to really smell in that 10 minutes not to mention I don't want air seeping through the walls into outside our home. I have a friend coming over tonight who has been doing this longer, he is going to give some advice... will keep ya guys posted