simple air supply

Merry Christmas folks! .. The studio starts again in earnest 2nd of January and although I have looked everywhere on the forum I cant seem to find a simple air intake and outtake diagram so i have drawn up my proposal below and need feedback please. My space is so tight that I would like to use the space in between the upper roof joists to act as the housing for a simple snaked flexible hose housing which will hopefully do the job. Forgive me if this seems too simplistic but I understand that sound dislikes going around corners so I was hoping that this basic solution would provide a reasonable degree of leakage from inside/outside the studio? i understand that by doing this i am compromising a section of the joist cavity that would normally filled with insulation (the yellow hatched sections in the drawing) . I propose to use the same system on the other side of the studio on the end joist cavity to take the air out ....bottom line is this any good? dont worry you wont hurt my feelings. i also understand that only one of the air inlets or outlets will require a fan to draw the air is this correct? i assume the air is either expelled or drawn in according to which vent gets the fan. Any advice recieved with thanks Tim

Hey Tim. You might want to search the forum for "silencer box" or "baffle box". That's the term you are looking for. Here are a few examples of the way it should be done: viewtopic.php?f=2&t=15430&start=45 viewtopic.php?f=2&t=1929&start=74 viewtopic.php?t=8425&start=2 viewtopic.php?f=1&t=11542&start=5 viewtopic.php?f=2&t=9761&start=0 viewtopic.php?f=2&t=11485&start=98 viewtopic.php?f=2&t=11508&start=157 viewtopic.php?f=2&t=13821 viewtopic.php?f=1&t=15378&start=44 viewtopic.php?f=2&t=18202&start=16 What you propose is not going to work too well, for several reasons. There's also some math involved in figuring out the proper interior dimensions of your silencer... :) - Stuart -

Thanks for the advice and all the links Stuart I'm looking through them very carefully as there is a fair amount of technical stuff to take in regarding the size of the silencers for each situation. My studio is so small less than 3.5 meters by 2 meters stand alone building and the pracicalities of air in and out plus air conditioning is driving me crackers. I don't have the room to put silencers for these 3 Air supply and conditioning holes inside so they will have to go on the outer structure I guess. Shame there is no simple solution to this air exchange/conditioning budget studio problem its proving to be quite a complex issue due to the miniture scale of my studio. In your or anyone else on the forums opinion does the positioning of the in and out air vents in a very small one room studio also matter? For example can both in and our air vents be situated just below the ceiling or would it be better if the air in was near the ceiling and air out nearer the floor?

My studio is so small less than 3.5 meters by 2 meters stand alone building and the pracicalities of air in and out plus air conditioning is driving me crackers.

Welcome to HVAC design! :) That's the way it goes, always...

I don't have the room to put silencers for these 3 Air supply and conditioning holes inside so they will have to go on the outer structure I guess.

For a small room, you might be able to fit them in between the inner and outer leaf of your wall... That only works if the total volume of the room is low enough to allow the silencer to be thin while still having a large enough cross section. But it is worth considering.

In your or anyone else on the forums opinion does the positioning of the in and out air vents in a very small one room studio also matter? For example can both in and our air vents be situated just below the ceiling or would it be better if the air in was near the ceiling and air out nearer the floor?

I prefer the other way: outlet near or in the ceiling. Hot air rises, so that's naturally where the stale, used, warm air will be: up near the ceiling. The inlet can also be up near the ceiling if that is all that will work, and I often do it that way, but HVAC contractors sometimes recommend that the inlet should be closer to the floor. Either way is fine. But do try to keep the inlet and outlet on opposite sides of the room, not on the same wall or adjacent walls if possible, to ensure that you get a good flow of air across the entire room. - Stuart -

Thanks Stuart patient, wise advice as usual ill look into incorporating thin silencers in the wall many thanks chap Tim