We have vents in the ceilings in the old part of the house where the kids' bedroom is above. That works OK, gravity and all that being our friend. We wanted to add those same register/vents to the addition, since the woodstove is in there and let's face it, kids end up in our bed too half the time, so that room should be warm. HOWEVER I learned that this is a HUGE no no in terms of modern day firecode. Which makes sense if you think about it. So I'm leaving the existing ones, but not adding any more. Be optimistic by all means! But I wanted to throw in my $.02 before you do your installation to think hard about where you could put that stove and how you'll circulate the air if you put it where you say - 'cause for me, it doesn't work and I found out the hard way once the 700 lb stove was installed.