Thanks for the great feedback. It looks like I have my work cut out for me with respect to investigating all my options. Does anyone care to share their thoughts with me on the hi-velo system? I hear some say they are noisy. I think that it may be a good fit for me considering my earlier posts of going with hydro for radiant floor in some areas. Then I can use the hi-velo to supply the hydro air heating and cooling and not have a sheet metal taking up head room in the basement. As well now I am not having to split up the a/c by floor etc. I really do not like the looks of those ductless split units, not to mention I would have to have a number of those condenser units outside the house.
With this system as well I could remove all of those existing space eating cast iron rads!
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