No, I am not in the habit of installing these. 2 years ago, we tried a Var Spd furnace to see if it would help. Not enough. Is there like a box with a squirrel cage fan, that can be installed in [cut into] say a 10x24 duct? Id guess the box to be like 16x24x24 or so. Or I could hang a furnace/A/C there and make the big addn it's own zone I guess.