Re: really quiet central AC/dehumidifier?

Posted by Graven Water on June 26, 2008, 7:49 am

ransley writes:

> To dehumidify most you need a load
> calculation done and you dont want to oversize the AC, oversize it and
> it runs and cools but wont run long enough to remove humidity, its
> common for lazy installers to oversize units as they make more money
> and never have a complaint that customers are not cool, but they are
> left humid. Best is an AC that runs 100% on the hottest day. Maybe 2
> speed condensors will do even better. Space Pack removes moisture
> first and more than regular AC except for maybe VSDC motors. You can
> also run a small dehumidifier all the time as they produse heat which
> the AC can offset for continual low humidity.

Thanks, that is helpful.

I don't believe a central AC could keep the humidity below 50% in the
spring and fall, without me having to run the AC and heater, or
maybe the AC and dehumidifier, at the same time.

I don't like having to get separate AC and dehumidifier, but maybe
that's the only option ...

I only have 1000 sq ft, about 660 sq ft upstairs, which gets hot, and
half a floor of living space downstairs, which is partly buried in
the ground and stays cool except on the hottest days.

Can I even get a central AC that is just barely adequate, for that
small of a space?

Possibly I could get by with no AC just a whole house dehumidifier if
I did things like installing a white reflective metal roof. The only
thing I don't like about a metal roof is that it's harder to walk
on than an asphalt shingle roof. A white metal roof might pay for
itself in time if it meant I don't need AC.

Laura

Posted by Noon-Air on June 26, 2008, 8:56 am

> ransley writes:

>> To dehumidify most you need a load
>> calculation done and you dont want to oversize the AC, oversize it and
>> it runs and cools but wont run long enough to remove humidity, its
>> common for lazy installers to oversize units as they make more money
>> and never have a complaint that customers are not cool, but they are
>> left humid. Best is an AC that runs 100% on the hottest day. Maybe 2
>> speed condensors will do even better. Space Pack removes moisture
>> first and more than regular AC except for maybe VSDC motors. You can
>> also run a small dehumidifier all the time as they produse heat which
>> the AC can offset for continual low humidity.

> Thanks, that is helpful.
> I don't believe a central AC could keep the humidity below 50% in the
> spring and fall, without me having to run the AC and heater, or
> maybe the AC and dehumidifier, at the same time.

It will if the system is correctly sized and properly installed.

> I don't like having to get separate AC and dehumidifier, but maybe
> that's the only option ...

THe *BEST* option is to have a correctly sized and properly sized comfort
system installed. A 2 stage system will dehumidify as much as 30 times
better than a standard system.

> I only have 1000 sq ft, about 660 sq ft upstairs, which gets hot, and
> half a floor of living space downstairs, which is partly buried in
> the ground and stays cool except on the hottest days.

> Can I even get a central AC that is just barely adequate, for that
> small of a space?

Yes you can get one that will be correctly sized for your home

> Possibly I could get by with no AC just a whole house dehumidifier if
> I did things like installing a white reflective metal roof. The only
> thing I don't like about a metal roof is that it's harder to walk
> on than an asphalt shingle roof. A white metal roof might pay for
> itself in time if it meant I don't need AC.

Call a local, *competent*, licensed, insured, professionally trained, HVAC
technician to do a complete survey and analysis of your home to see what it
actually needs. We can't *SEE* it through the computer screen.
Discuss all of your options with the tech and tell him about the "energy
saving" improvements you want to do.
If you need to find a competent, local, tech, then go to the manufacturers
web sites and they will have a page for locating a top contractor in your
local area.

Posted by Stan Brown on June 28, 2008, 8:38 am

> If you need to find a competent, local, tech, then go to the manufacturers
> web sites and they will have a page for locating a top contractor in your
> local area.

Which manufacturers?

--
Stan Brown, Oak Road Systems, Tompkins County, New York, USA
http://OakRoadSystems.com
Shikata ga nai...

Posted by Noon-Air on June 28, 2008, 8:53 am

>> If you need to find a competent, local, tech, then go to the
>> manufacturers
>> web sites and they will have a page for locating a top contractor in your
>> local area.

> Which manufacturers?

Pick one.... most all of the manufacturers have them. No, I am not gonna do
your homework for you.

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