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Didn't mean to touch a nerve. Thanks again for the insight.

Good advice guys. Thanks for your time.

I'm a contractor/carpenter. I'm doing a remo for a customer and part of the job is cnetral air on the 2nd flr. I've gotten a couple quotes form hvac subs and the one I'd like to go with recommends...

Dan-thanks for the help. I'll let you know how I make out.

Dan W,
That's what I'm talking about. Your last point about cutting a return in the floor of an out-of-the-way/centrally located room is exactly the info I'm looking for. To answer some of your...

Cem,
As mentioned above, I'd like to avoid the straight vent/grate method if I can. HO is worried about sound travel and I don't think my old lady would be too happy about it in our house either. ...

Daltex,
I think you are right. The upstairs is pressurized and the warm air from the first floor can not get up the stairwell. Maybe I should be pushing the air down and not up. What is the best...

Dan,
Does your exterior duct make a noticable difference on the second flr? Is there a fan in the duct to help push the air?

Dan,
I've thought of the direct/straight vent option. I'd like to avoid it if I can due to sound travel. Also, I'll have to talk to my inspector to see if this is a fire code violation in MA...

Daltex,

It's only about 400 sqft (two small bedrooms and a hall) and I'd be happy with an increase of 5-8 degrees. This is to supplement a forced hot water system. The first floor of this home...

I already put this thread in the fireplace section but I thought I'd also try here since it kind of pertains to both topics:

I wonder if I could pick your brains? I'm a contractor/carpenter in Ma....

I wonder if I could pick your brains? I'm a contractor/carpenter in Ma. I've been presented with a question from a HO. They are interested in moving air from the 1st floor (radiant heat source) to...