*From:* bob allen [mailto:[EMAIL PROTECTED]
*To:* Biofuel@sustainablelists.org
*Sent:* Fri, 14 Oct 2005 09:53:14 -0300
*Subject:* Re: [Biofuel] Grey water heat recovery and low tech Solar
collectors
Although my observations will offset
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javascript:kh6k0(new,Biofuel@sustainablelists.org)
*Sent:* Wed, 12 Oct 2005 23:16:44 -0300 *Subject:* Re: [Biofuel] Grey
water heat recovery and low tech Solar collectors
Jim, There are commercial grey water heat recovery
10:31:05 -0300
*Subject:* Re: [Biofuel] Grey water heat recovery and low tech Solar
collectors
With all due respect Tom, when I see someone use the word
ridiculous in threads like this, I usually think of the people who
actually believe that the buck stops with them
h6k0("new","[EMAIL PROTECTED]")>] *To:* Biofuel@sustainablelists.org <_javascript_:kh6k0("new","Biofuel@sustainablelists.org")> *Sent:* Wed, 12 Oct 2005 23:16:44 -0300 *Subject:* Re: [Biofuel] Grey water heat recovery and low tech Solar collectors??
: bob allen [mailto:[EMAIL PROTECTED]
To: Biofuel@sustainablelists.org
Sent: Fri, 14 Oct 2005 09:53:14 -0300
Subject: Re: [Biofuel] Grey water heat recovery
and low tech Solar collectors
Although my observations will offset in terms of net effects, a fifteen
minute shower is a really really long
: [Biofuel] Grey water heat recovery
and low tech Solar collectors
Although my observations will offset in terms of net effects, a fifteen
minute shower is a really really long shower in my experience. A few
years ago I had students go out and calculate energy use for showers.
average length 3
Hakan Falk a écrit :
Tom,
Do not worry, it must be other developed countries than US, this
because US is using more gasoline than water. Cannot be the
French either, since I saw some statistics that they only shower
once every two weeks and that was the immigrants, according
to a French guy I
Hmmm. Interesting direction this thread is taking...
While we are talking about showers, why exactly is it assumed in the
US that everyone must take a shower every day. When in a dry
climate, not doing much physical work (like going to the office every
day) I get by with every other day fine.
Mike Weaver a écrit :
M. Falk:
As a person with (minor) French ancestry, I am shocked and offended at
your suggestion that the French do not bathe regularly.
I challenge you to defend yourself in a duel of honor. Shampoo at
fifty yards, the first one to achieve a glossy sheen to be
I agree. Only on weeks where I do real work - splitting wood or such do
I take a shower daily. Mostly every other day is fine. This is not
always true in the Summer, though. I am on the East Coast.
Zeke Yewdall wrote:
Hmmm. Interesting direction this thread is taking...
While we are
>From my (fairly limited) time in France the big difference I noticed
was the French use far less water. In one hotel there was a small tub
and bathing
spray, in another a small shower with an instant heater. I probably
used 1/4 the water that I would here, where most people keep a 60
gallon
I generally take a shower once a month whether I need it or not.
(in the summer of course, in the winter we can take snow baths every
day)
PS for all you foreigners. underwear can be recycled four times
(inside out, back and front) this is of course common sense to
Canadians but I am
I really like this list and its members, including the French
and Canadian French. LOL
It is fun with the sparks and the humor.
Hakan
At 20:52 14/10/2005, you wrote:
I generally take a shower once a month whether I need it or not.
(in the summer of course, in the winter we can take snow baths
!! What about us ugly Americans?
Hakan Falk wrote:
I really like this list and its members, including the French
and Canadian French. LOL
It is fun with the sparks and the humor.
Hakan
At 20:52 14/10/2005, you wrote:
I generally take a shower once a month whether I need it or
Is there a way to turn excess glycerin into perfume?
That might save some energy too!
MikeHakan Falk [EMAIL PROTECTED] wrote:
I really like this list and its members, including the Frenchand Canadian French. LOLIt is fun with the sparks and the humor.HakanAt 20:52 14/10/2005, you wrote:I
Mike,
Ugly is your addition and I love Americans, the only thing
that I do not like is their foreign policies, energy policies.
and the political/economy corruption by the US corporations.
By the way, I also like the French. My daughter in law and
grandchildren are French.
Hakan
At 23:21
On 10/14/05, Mike Weaver [EMAIL PROTECTED] wrote:
I agree.Only on weeks where I do real work - splitting wood or such doI take a shower daily.Mostly every other day is fine.This is notalways true in the Summer, though.I am on the East Coast.
Northeast or Southeast? Or even worse, Deep South?
:[EMAIL PROTECTED] On Behalf Of JJJN
Sent: Monday, October 10, 2005 8:15 PM
To: Biofuel@sustainablelists.org
Subject: [Biofuel] Grey water heat recovery and low tech Solar
collectors
Hi folks,
I was looking for some ways to help save some energy this winter. I
found two places that may help, but I
23:16:44 -0300Subject: Re: [Biofuel] Grey water heat recovery and low tech Solar collectorsJim,There are commercial grey water heat recovery systems out there. Theyrecover 50% to 75% of the heat going down your drain, largely while takingshowers. According to the DOE studies conducted
Sent: Monday, October 10, 2005 8:15 PM
To: Biofuel@sustainablelists.org
Subject: [Biofuel] Grey water heat recovery and low tech Solar
collectors
Hi folks,
I was looking for some ways to help save some energy this winter. I
found two places that may help, but I know nothing about
Irwin
From: John Hall [mailto:[EMAIL PROTECTED]To: Biofuel@sustainablelists.orgSent: Wed, 12 Oct 2005 23:16:44 -0300Subject: Re: [Biofuel] Grey water heat recovery and low tech Solar collectorsJim,There are commercial grey water heat recovery systems out there. Theyrecover 50% to 75% of the heat
From: John Hall [mailto:[EMAIL PROTECTED]
To: Biofuel@sustainablelists.org
Sent: Wed, 12 Oct 2005 23:16:44 -0300
Subject: Re: [Biofuel] Grey water heat recovery and low tech Solar
collectors
Jim,
There are commercial grey water heat recovery systems out
: Thu, 13 Oct 2005 10:31:05 -0300Subject: Re: [Biofuel] Grey water heat recovery and low tech Solar collectors
With all due respect Tom, when Isee someone use the word "ridiculous" inthreads like this, I usually think of the people who actually believe that the buck stops with t
Subject: Re: [Biofuel] Grey water heat recovery and low tech Solar
collectors
With all due respect Tom, when I see someone use the word ridiculous in
threads like this, I usually think of the people who actually believe that
the buck stops with them, every possible scenario has been
]To: Biofuel@sustainablelists.orgSent: Thu, 13 Oct 2005 14:06:05 -0300Subject: Re: [Biofuel] Grey water heat recovery and low tech Solar collectorsSo if we assume that energy to heat water costs about $15/Mbtu (orabout 1.5 cents per MJ), then you've saved about 9 cents on thatshower. Times four
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Sent: Thu, 13 Oct 2005 10:31:05 -0300
Subject: Re: [Biofuel] Grey water heat recovery and low tech Solar
collectors
With all due respect Tom, when I see someone use the word ridiculous in
threads like this, I usually think of the people who actually
Irwin
From: Michael Redler [mailto:[EMAIL PROTECTED]
To: Biofuel@sustainablelists.org
Sent: Thu, 13 Oct 2005 10:31:05 -0300
Subject: Re: [Biofuel] Grey water heat recovery and low tech Solar
collectors
With all due respect Tom, when I see someone
PROTECTED]
To: Biofuel@sustainablelists.org
Sent: Thu, 13 Oct 2005 10:31:05 -0300
Subject: Re: [Biofuel] Grey water heat recovery and low tech Solar
collectors
With all due respect Tom, when I see someone use the word ridiculous in
threads like this, I usually think
Tom Irwin wrote:
Hi John,
Just because graywater has some heat in it does not make it economically
recoverable.
Graywater is a wonderful breeding ground for fungi and bacteria that will
definitely grow
and clog heat exchange tubing. I think it will be a huge headache and a waste
of
"h"?
I reviewed your calculations andagree with them. Mine were based on a full (15.5 cu ft) bathtub (minus occupant).
Specific Heat = 4.186J per gm, per deg C
Massof Water = 439Kg
Mass of Occupant = 70Kg
Differential Temperature = 45-20 = 25 C degrees
4.186 x 369 x 10^3 x 25 =38.6
Just for clarification, all of my calculations and discussion were
intended for heating the incoming DHW supply with the greywater heat,
not space heating. Sorry about not being more specific earlier.
Zeke
On 10/13/05, Michael Redler [EMAIL PROTECTED] wrote:
h?
I reviewed your
Zeke Yewdall wrote:
The heat exchanger path for the incoming cold water is indeed much
smaller with a higher pressure loss (usually, a small spiral tube
wrapped around the greywater drain pipe), however it is clean water,
and is no different than the heat exchanger for any on demand water
Thanks for the clarification Zeke. I probably missed the first few posts in this thread and lost the original intention. In any event, my position on this discussion hasn't changed. Because of the bits of energy wasted and the potential energy not yet used, I think that we can agree that, to at
PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of JJJN
Sent: Monday, October 10, 2005 8:15 PM
To: Biofuel@sustainablelists.org
Subject: [Biofuel] Grey water heat recovery and low tech Solar
collectors
Hi folks,
I was looking for some ways to help save some energy this winter. I
found two places
00:14:40 -0300Subject: [Biofuel] Grey water heat recovery and low tech Solar collectorsHi folks,I was looking for some ways to help save some energy this winter. I found two places that may help, but I know nothing about either and wonder if it is worth the investment or not. They are:1) Solar
. Where are you located?
Tom Irwin
*From:* JJJN [mailto:[EMAIL PROTECTED]
*To:* Biofuel@sustainablelists.org
*Sent:* Tue, 11 Oct 2005 00:14:40 -0300
*Subject:* [Biofuel] Grey water heat recovery and low tech Solar
collectors
Hi folks,
I was looking for some
Jim,
did you search the archives? search for solar hot water heater
We've been discussing this a fair amount lately, several people posted
great recommendations and reference website urls.
Take care,
Ken
On 10/11/05, JJJN [EMAIL PROTECTED] wrote:
Hello Tom,
We are in Eastern Montana, Cold
system?
Tom Irwin
From: JJJN [mailto:[EMAIL PROTECTED]To: Biofuel@sustainablelists.orgSent: Tue, 11 Oct 2005 14:54:08 -0300Subject: Re: [Biofuel] Grey water heat recovery and low tech Solar collectorsHello Tom,We are in Eastern Montana, Cold but sunny winters. Would antifreeze work
Hi folks,
I was looking for some ways to help save some energy this winter. I
found two places that may help, but I know nothing about either and
wonder if it is worth the investment or not. They are:
1) Solar collectors
2) Grey water heat going down the drain
Can anyone give me some
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