Help? adding A Return Vent

[snomobeelr]

Hello, have a 1400 sq ft split level home. Furnace is in the Basment , along with the only return vent for the furnace which is 100,00 btu. It gets a bit loud when running. In the summer you can tell the diffrence in temp on every level. I am going to put a return vent in the upper level about a foot from the celing. My question is approx what size should the vent be. I have seen vents I can use that are approxixmitly 6 inches. will have to travel about 40 ft to attach it to the existing return. will this be ok?

Thanks ,
Alan

[BackSplitRich]

i'm curious....

I have a split level as well, and wondering how you are going to run the extra return duct? I want to do the same, just can't figure where to run the duct, without it being to obtrusive.

Rich

[Ed Imeduc]

Its all in what you can get up there are say put up there for a cold air return.I have panned the bottom of the stairs and cut in a cold air grill there in the top riser. Just round pipeback to the cold air drop will work.Might go to www. hartandcooley.com check for grills and registers.

ED ;)