need sound dampening material

[FoBoT]

i have a section of my basement that is unfinished, bare studs, open ceiling etc.
the furnace and hot water heater are back there, along with storage , and most importantly, my PC's workshop and servers/etc.

the fan noise is starting to get noticeable in the rooms adjacent and the room above.

so i want to put something between the studs/against the back side of the drywall and up in between the floor joists (the ceiling of my "Cave") to dampen the sound

i figure normal fiberglass insulation will be cheapest, but what are my alternatives?
i don't want to spend big $ , but i need to muffle the sound a bit


thanks

 

[FoBoT]

is that dude that used to work at homedepot around? evadman?
Bueller?

 

[Howard]

Your mother-in-law's blankets.

 

[beatmix01]

alternatives

 

[Farbio]

dynamat?

 

[JEDI]

to make a silencer...2liter coke bottle + egg crate foam material that you put on top of matresses.

fire it once to clear a path.

now you're using it for deer hunting, right?

 

[ultimatebob]

Whatever you do, DON'T use polyurethane foam. It's a cheap soundproofing material, but it's also very flammable.

 

[Atomic Rooster]

One of the best (and cheapest) is to use egg flats. Many sound studios use them.

 

[FoBoT]

egg flats, i wouldn't have to worry about getting all itchy if i use those. hmmm...
thanks baddaddy