somebody tell me why my thinking is crazy - and why a better baseboard register design isn't out there. My house is all 4x12 baseboard registers, the triangular kind, mostly all right under windows. I find that, even though we have good vacuum at the return vents, since the registers do not direct the air, it just goes straight up - and "piles up" underneath the window sill. Yes it eventually heats the whole room but it's always warmer right under the window - [B]where nobody sits or stands[/B] Yes I know there are deflectors, but these seem to be angled at like 90 degrees and try to push the air straight out, effectively making it try and do a 180 from the supply line. In our experience these (a) create more turbulence and non-usable air and (b) do not fit well on most basement registers anyway. Tell me, why would you not design a register for baseboards that was shaped more like a box - 4x12 footprint and say 6" tall - that has an internal deflector shield that starts at the very back bottom corner (against the wall) and leans forward so the top edge is at the front of the box? That way it would push the warm air just a bit forward, well in front of the window but up into the air.

I want to put a 1st floor doorway where a 2ND floor BR air return wall channel to the basement is. Can I place a vent above the new 1st floor doorway to vent the 2nd BR? Will this still affect pressure in 2ND floor BR or hurt resale? Thanks! I'll also mention that I'm planning to add a vent to the same return duct in the basement to keep the air flow to the AH.