Re: Cooling an understairs cupboard...Node 0!

["noel_pilot" <HA@xxxxxxxxxxxxxxxxxx>]

some good thoughts thanks,
design of the understairs cupboard is challenging me, basically the
right wall is the stairs, the left wall is into the lounge, front is
the door into the lounge and the back wall is solid wall to next door!!
So a touch limited,

ref earlier thought of pulling air from floor space.....would that
really be alright? enough cooler air down there to pull up? never
really thought of air moving around down there!!

without making holes into the stairs....trying to avoid if poss cos
thats uncharted territory for me!......i have the following options
for places to make holes/vents

1 - floor - tongue and groove chipboard,

2 - Wall into lounge, plasterboard - 3inch or so gap plasterboard

3 - door into lounge - either plane door to have under door gap or put
louvred vent into lower portion of door.

Obviously i'd rather not mount anything onto the door as i think
that'd look a bit poor altho maybe a kind of rackmount fan tray affair
might hit the spot if I can mount it in front of the louvred grille
nicely, that could possibly draw air into the cupboard then i could
try and duct out into the lounge somehow....looking to have any
out/inlets into the lounge at ground level to maximise aesthetics in
the lounge itself, not ideal thermal wise but hopefully it'll be
enough if i put it at the back of the cupboard with the inlet being in
the door at the front.

Does this seem reasonable?!

THanks all

Noel

--- In ukha_d@xxxxxxx, Kim Wall <kim@...> wrote:
>
> noel_pilot wrote:
> > Hmmm hadn't thought of that one, i'm in a relatively new build
house,
> > tongue and groove chipboard on the floor not sure whats beneath
that.
> > cupboard is a long way from an external wall so extracting to
outside
> > will be very difficult!
>
> A couple of thoughts:
>
> - Instead of ducting the warm air outside, could you route it to a
> generally cold-ish room (hallway perhaps?).  Given the British
weather,
> you might as well make use of the heat you're paying for already...
>
> - I'm renting, so don't have a 'node 0' as such - just a free-standing
> 19" rack with two servers, a router, ethernet switch, $ky box and
a
> noisy bastard of a UPS in it.  After limited success with bathroom
> extractor fans in my previous house[1], I've got all the rack doors
> closed, with two pairs of 120mm muffin fans top and bottom to keep the
> air moving.  They're 12V fans, as you can get for about a quid each
from
> ebuyer (no concerns about reliability - at that price you can
maintain a
> supply of spares and replace them when they get knackered), and I'm
> powering them from an unregulated 9V wall-wart (not sure exactly what
> voltage they're getting, but it's a bit lower than the rated 12) to
keep
> them nice and quiet.  This provides more than enough airflow, with the
> air at the front of the rack (where all the intakes are) at
> floor-level[2] room temperature.
>
>
> Kim.
> --
>
> [1] Where I had the rack doorless in a walk-in cupboard which
> conveniently had the loft hatch in the ceiling - I replaced the hatch
> with a piece of chipboard with a bathroom extractor fan in it, to blow
> the hot air into the roof space.  It moved the heat well enough, but
was
>   very loud, and died after about 12 months.
>
> [2] In this room, generally about 2C cooler than at eye-level,
according
> to my measurements.
>