[CAUT] Humidity (HVAC codes)

[Keith Roberts]

Sure, Fred, I agree, BUT!!!!  Just like with a swamp cooler. If you don't
open windows to allow air flow, the blower back-pressures and this overheats
the motor. If the belt is tight and doesn't act as the safety, the motor
catches on fire, usually asphixiating the occupants before the fire destroys
everything.
Cutting off the return air is probably the fastest way to create a
heating/air system that needs the repairman to be there for big $$$$ and
will shorten the life of the system costing replacement bucks. How much
depends on how aggressive you are at killing the air flow and changing the
static pressure in the heat/air units. Provide relief elsewhere if you do
this.
Keith Roberts

On Thu, Jan 13, 2011 at 8:15 AM, Fred Sturm <fssturm at unm.edu> wrote:

> On Jan 13, 2011, at 8:23 AM, Keith Roberts wrote:
>
> Put in a BIG room humdifier. Set a swamp cooler in the hallway. Fill it
>> with a bucket. Plug it in.
>>
>> I know it's sounds ridiculous but so is what is happening. It's really a
>> good idea when compared to lighting a piano on fire and claiming it was
>> spontaneous combustion because of the low humidities. Attract some
>> attention.
>> <GRIN>
>>
>
>
>        More practically speaking, tape a garbage bag over the air ducts
> (even just one of them, exhaust or the active one). Then a regular room
> humidifier will do its job, like in a room in a house. The air will get a
> bit stale over time, especially if the windows can't be opened. But the
> piano will be happier.
>        It would take an enormous output of moisture to counteract having
> the entire volume of air in a room replaced at the standard rate, which I
> think is as high as three times an hour. Does somebody know? My memory is
> not clear on that, but I remember being astonished when I first came upon
> the figure many years ago.
>
> Regards,
> Fred Sturm
> University of New Mexico
> fssturm at unm.edu
>
>
>
>
>
>
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