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How much do you really save turning down the thermostat?

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Joe

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Dec 2, 2007, 3:27:39 PM12/2/07
to
I'm struggling with the idea between keeping my thermostat at 66
degrees which I need to wear at least two layers of clothing around my
house to feel comfortable and 69 degrees with which I can walk around
comfortably in a t-shirt. Has any actually calculated actual savings
of turning down the thermostat? I've read all the articles about how
you can save 10% per each degree you turn down your thermostat but I
would like to see if anyone actually have some real numbers to back me
up. I'm not sure it's worth $30 a month to live like this.

Vic Smith

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Dec 2, 2007, 3:42:41 PM12/2/07
to
On Sun, 2 Dec 2007 12:27:39 -0800 (PST), Joe <joe...@gmail.com>
wrote:

The problem is dealing with others in the house. I gave up trying to
convince them the savings was worth it.
The best I could get out of them was 69 degrees - and they're still
bitching.

--Vic

clams casino

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Dec 2, 2007, 4:00:38 PM12/2/07
to
Joe wrote:


No hard figures, but logically there is a savings for any reduced temp
level (except with heat pumps).

I suggest using programmable thermostats with several daily time
adjustments. They should pay for themselves within months.

For a start, we have up and down zones / thermostats. During the day, we
keep the upstairs at 62 (doors shut so the heat from downstairs stays
primarily downstairs), with the heat increased to 68 early evening and
down to 66 about midnight.

Downstairs, we set the thermostat at 62 at 10pm & step up the temp to 66
about 4am, 67 at 8am, 68 and 3pm and 69 at 5pm. When we leave the
house, we drop the thermostat a few degrees and usually reset as we
enter. The thermostat is near the door we use most, so it's no bother
to hit the buttons up / down as desired. During the morning, 66-67 can
be comfortable, but there is always a chill about the time the sun drops
so the change helps keep the comfort..

This will not work with a heat pump (secondary heating will kill the
savings), but should work with gas & oil.

Jeff

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Dec 2, 2007, 4:04:10 PM12/2/07
to
Joe wrote:
> I'm struggling with the idea between keeping my thermostat at 66
> degrees which I need to wear at least two layers of clothing around my
> house to feel comfortable and 69 degrees with which I can walk around
> comfortably in a t-shirt. Has any actually calculated actual savings
> of turning down the thermostat?

Look up the degree days of heating for your locale for each month.

If you have 600 degree days in November, that would be 20 "degree
day", so you would save roughly 3/20 or 15%.

Jeff

Rod Speed

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Dec 2, 2007, 4:34:22 PM12/2/07
to
Joe <joe...@gmail.com> wrote:

> I'm struggling with the idea between keeping my thermostat
> at 66 degrees which I need to wear at least two layers of
> clothing around my house to feel comfortable and 69 degrees
> with which I can walk around comfortably in a t-shirt. Has any
> actually calculated actual savings of turning down the thermostat?

That isnt possible to do in general, it depends on
how lossy your house is, how well insulated it is.

For example, if its perfectly insulated, the thermostat
setting will make no difference to the cost.

> I've read all the articles about how you can save
> 10% per each degree you turn down your thermostat

Thats just a number plucked from someone's arse.

> but I would like to see if anyone actually
> have some real numbers to back me up.

Wont help much with your costs.

> I'm not sure it's worth $30 a month to live like this.

Sure, thats certainly one consideration.


Rod Speed

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Dec 2, 2007, 4:38:01 PM12/2/07
to
clams casino <PeterG...@drunkin-clam.com> wrote:
> Joe wrote:
>
>> I'm struggling with the idea between keeping my thermostat at 66
>> degrees which I need to wear at least two layers of clothing around
>> my house to feel comfortable and 69 degrees with which I can walk
>> around comfortably in a t-shirt. Has any actually calculated actual
>> savings of turning down the thermostat? I've read all the articles
>> about how you can save 10% per each degree you turn down your
>> thermostat but I would like to see if anyone actually have some real
>> numbers to back me up. I'm not sure it's worth $30 a month to live
>> like this.

> No hard figures, but logically there is a savings for any reduced temp level

Nope, not when its well insulated enough.

> (except with heat pumps).

Just as true of heat pumps. You're confusing the other problem with
heat pumps, the overnight setback, with the daytime lower setting.

> I suggest using programmable thermostats with several daily time adjustments. They should pay for themselves within
> months.

Easy to claim, hell of a lot harder to actually substantiate that claim.

> For a start, we have up and down zones / thermostats. During the day, we keep the upstairs at 62 (doors shut so the
> heat from downstairs stays primarily downstairs), with the heat increased to 68 early evening and down to 66 about
> midnight.

> Downstairs, we set the thermostat at 62 at 10pm & step up the temp to
> 66 about 4am, 67 at 8am, 68 and 3pm and 69 at 5pm. When we leave the
> house, we drop the thermostat a few degrees and usually reset as we
> enter. The thermostat is near the door we use most, so it's no bother
> to hit the buttons up / down as desired. During the morning, 66-67
> can be comfortable, but there is always a chill about the time the
> sun drops so the change helps keep the comfort..

> This will not work with a heat pump (secondary heating will kill the savings),

Not if it doesnt use secondary heat.

Usene...@the-domain-in.sig

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Dec 2, 2007, 5:31:46 PM12/2/07
to
In article <4d1cb135-03bd-4b61-9616-
83f369...@p69g2000hsa.googlegroups.com>, joe...@gmail.com
says...


It depends on other factors.

If one person has good insulation and weatherstripping on
windows/doors, then the heat will stay in. And the heater or
furnace won't need to kick in as often. Regardless of where the
thermostat is set. If another person has poor insulation, and
drafts blowing in around window/door cracks, then the heater or
furnace will have to work harder.

I made sure to apply weatherstripping to windows and doors when I
moved into my current place, before the first winter.

And I don't have any problem with wearing a couple of layers (or
more) while at home. It isn't like I have to look good by some
snooty office/retail dress code standard. And thermal underwear
is good for all occasions.


--
Earn Money With Your Web Site
http://www.WebSponsorZone.Net
Web Site Advertising Directory

Usene...@the-domain-in.sig

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Dec 2, 2007, 5:35:29 PM12/2/07
to
In article <sv56l3tt498vi4htn...@4ax.com>,
thismaila...@comcast.net says...


Just tell them to put on their fashionable retro-70s "Jimmy
Carter" brand sweaters. With the little embroidered grinning
mouth logo.

Bob F

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Dec 2, 2007, 6:41:17 PM12/2/07
to

<Usene...@THE-DOMAIN-IN.SIG> wrote in message
news:MPG.21bcd1f75...@nntp.aioe.org...

> In article <4d1cb135-03bd-4b61-9616-
> 83f369...@p69g2000hsa.googlegroups.com>, joe...@gmail.com
> says...
>> I'm struggling with the idea between keeping my thermostat at 66
>> degrees which I need to wear at least two layers of clothing around my
>> house to feel comfortable and 69 degrees with which I can walk around
>> comfortably in a t-shirt. Has any actually calculated actual savings
>> of turning down the thermostat? I've read all the articles about how
>> you can save 10% per each degree you turn down your thermostat but I
>> would like to see if anyone actually have some real numbers to back me
>> up. I'm not sure it's worth $30 a month to live like this.
>
>
> It depends on other factors.
>
> If one person has good insulation and weatherstripping on
> windows/doors, then the heat will stay in. And the heater or
> furnace won't need to kick in as often. Regardless of where the
> thermostat is set. If another person has poor insulation, and
> drafts blowing in around window/door cracks, then the heater or
> furnace will have to work harder.
>

Even if the house is leaky, turning down the thermostat saves energy. Even more,
in fact.

Bob


Bob F

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Dec 2, 2007, 6:39:47 PM12/2/07
to

"clams casino" <PeterG...@drunkin-clam.com> wrote in message
news:P1F4j.14098$KK1....@newsfe24.lga...

> Joe wrote:
>
>>I'm struggling with the idea between keeping my thermostat at 66
>>degrees which I need to wear at least two layers of clothing around my
>>house to feel comfortable and 69 degrees with which I can walk around
>>comfortably in a t-shirt. Has any actually calculated actual savings
>>of turning down the thermostat? I've read all the articles about how
>>you can save 10% per each degree you turn down your thermostat but I
>>would like to see if anyone actually have some real numbers to back me
>>up. I'm not sure it's worth $30 a month to live like this.
>>
>
>
> No hard figures, but logically there is a savings for any reduced temp level
> (except with heat pumps).

Keeping the thermostat down will cut costs even with heat pumps.

The only issue with heat pumps is raising the setting too much at a time, unless
you have a way to disable the secondary heat. If the secondary heat is disabled,
even big changes are no problem.

When I had a heat pump installed, they wired the trermostat so that setting the
"emergency" switch on disabled the strip heaters.

Bob


Bernardo Gui

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Dec 2, 2007, 7:48:18 PM12/2/07
to
On Sun, 2 Dec 2007 14:31:46 -0800, Usene...@THE-DOMAIN-IN.SIG
<Usene...@THE-DOMAIN-IN.SIG> wrote:

>And I don't have any problem with wearing a couple of layers (or
>more) while at home. It isn't like I have to look good by some
>snooty office/retail dress code standard. And thermal underwear
>is good for all occasions.

Well said.

It feels foolish to me to waste energy (and money) keeping the
temperature in my house warm enough to walk around naked, during the
winter. I can spend that money on something more important.

When I have visitors, then I warm the place up for them. When it is
just me, then lower temperatures and a sweatshirt works fine.

BG

Jeff

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Dec 2, 2007, 8:04:52 PM12/2/07
to
Usene...@THE-DOMAIN-IN.SIG wrote:
> In article <4d1cb135-03bd-4b61-9616-
> 83f369...@p69g2000hsa.googlegroups.com>, joe...@gmail.com
> says...
>> I'm struggling with the idea between keeping my thermostat at 66
>> degrees which I need to wear at least two layers of clothing around my
>> house to feel comfortable and 69 degrees with which I can walk around
>> comfortably in a t-shirt. Has any actually calculated actual savings
>> of turning down the thermostat? I've read all the articles about how
>> you can save 10% per each degree you turn down your thermostat but I
>> would like to see if anyone actually have some real numbers to back me
>> up. I'm not sure it's worth $30 a month to live like this.
>
>
> It depends on other factors.
>
> If one person has good insulation and weatherstripping on
> windows/doors, then the heat will stay in. And the heater or
> furnace won't need to kick in as often. Regardless of where the
> thermostat is set. If another person has poor insulation, and
> drafts blowing in around window/door cracks, then the heater or
> furnace will have to work harder.
>
> I made sure to apply weatherstripping to windows and doors when I
> moved into my current place, before the first winter.

Weatherizing and then insulating are your best options.

A small cold air leak is a lot of BTUs going out the door. Look for any
holes in your house envelope and fix those. Then attack the least
insulated parts of your home.

The formula for heat loss through insulation is simple:

(Area (in SF)/ R value) * (T Indoors F - T Outdoors F)

So 20 SF of R1 single pane windows will lose 1000 BTUs/hr if it is
70F inside and 20F outside. And much more if there is any air leakage. A
storm window or some bubble wrap can cut that in half. Wherever you
don't have insulation, add it, worry about upgrading insulation later.
Attack the weak links first.

Jeff

Marsha

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Dec 2, 2007, 8:22:49 PM12/2/07
to
Jeff wrote:
> The formula for heat loss through insulation is simple:
>
> (Area (in SF)/ R value) * (T Indoors F - T Outdoors F)
>
> So 20 SF of R1 single pane windows will lose 1000 BTUs/hr if it is 70F
> inside and 20F outside. And much more if there is any air leakage. A
> storm window or some bubble wrap can cut that in half. Wherever you
> don't have insulation, add it, worry about upgrading insulation later.
> Attack the weak links first.
>
> Jeff

Well, that clears it up for the mathmatically challenged, like me :-)

Marsha/Ohio

mdl.Wi...@gmail.com

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Dec 2, 2007, 8:34:49 PM12/2/07
to

Hi folks. I am a woman who is almost 60. I keep my house at 60. I
do layer and I always use a turtle neck and a sweater this time of
year. I don't notice it - the cold that is. The bedroom is 50...that
feels chilly to me
so down covers helps. I have a fixed amount for heating fuel. Part
of my heating comes from wood heat - but to get the wood and one tank
of oil to last I use it all as frugally as possible. I think I found
that controling the drafts was the biggest obstacle. If it's drafty
you'll feel cold. If you can control the draft - 60 seems ok. And I
think I saw that you keep your home a bit higher than 60. Anyway,
good luck

Joe

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Dec 2, 2007, 8:46:25 PM12/2/07
to
I'd keep my thermostat at 60 if it were just me but I have a boney
wife who tells me it's freezing if the temp drops below 67 and two
children that kick their covers off at night. I was hoping some frugal
person out there would have done the math for their own house to tell
me how much they save by turning down their thermostat. A dollar a day
is more than worth it not to hear my wife bitch but for 2-5 dollars I
might just buy ear plugs.

Don Klipstein

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Dec 2, 2007, 9:31:19 PM12/2/07
to
In <MPG.21bcd1f75...@nntp.aioe.org>, Usenet2007@... wrote:
>In article <4d1cb135-03bd-4b61-9616-
>83f369...@p69g2000hsa.googlegroups.com>, joe...@gmail.com says...
>> I'm struggling with the idea between keeping my thermostat at 66
>> degrees which I need to wear at least two layers of clothing around my
>> house to feel comfortable and 69 degrees with which I can walk around
>> comfortably in a t-shirt.

My experience is that an extra layer of clothing allows me to turn the
heat down by a lot more than 3 degrees.

>> Has any actually calculated actual savings
>> of turning down the thermostat? I've read all the articles about how
>> you can save 10% per each degree you turn down your thermostat but I
>> would like to see if anyone actually have some real numbers to back me
>> up. I'm not sure it's worth $30 a month to live like this.

I have heard some fair mount that heat cost is proportional to degrees
higher than the temperature of the home would be if the heat was
eliminated.
It is also widely mentioned that typical heating cost is reasonably
proportional to "heating degree days", and the "standard heating degree
day" for a particular day is number of degrees below 65 degrees F by which
that day's average temperature is. Add up "heating degree days" of each
day that has any, and average heating bills are largely proportional to
this.

Now, percentage savings per degree will vary with average outdoor
temperature.

For example, in NYC the average temperature from October 1 to May 15
is 45 degrees F. I suspect this is "roughly the heating season" in
NYC. For an average home, heating cost is supposedly proportional to how
much this is below 65 degrees F. Going by this, decreasing your
thermostat setting from "average" to "1 degree below average" will reduce
heating cost by 5% in NYC. This is only a first order approximation -
actual savings will be affected slightly by a non-average thermostat
setting redefining your heating season a little, which changes slightly
the average outdoor temperature during your heating season.

Percentage savings per degree cooler will be greater in areas with
milder heating seasons, and less in areas with colder heating seasons.

<SNIP good stuff unrelated to wearing more clothing>

>And I don't have any problem with wearing a couple of layers (or
>more) while at home. It isn't like I have to look good by some
>snooty office/retail dress code standard. And thermal underwear
>is good for all occasions.

How about a nice cozy fluffy soft-and-warm-looking sweater? Look more
cuddly to your husband/wife/girlfriend/boyfriend? I don't think Carter
should have had that idea held against him so much!

Socks and/or fluffy/fuzzy cute slippers?

"Fleece" sweatpants and hooded sweatshirt?

Heck, that's gotta allow me to set the thermostat about 8 degrees cooler
than if I was just wearing khakis and a T-shirt. In addition, my SO gets
"in the mood" more easily! Heck, I wish hooded sweaters weren't just made
for women to wear! My SO would think I look really cute in one of those
if he didn't have a hangup about men wearing women's clothes!

Sweater over a hooded sweatshirt, thermal underwear or pajama pants
under "fleece" sweatpants, wool socks and nice fuzzy bunny slippers - good
for turning the thermostat down to 60! That may look pretty attractive
to those who have to pay $3/gallon for home heating oil!

- Don Klipstein (d...@misty.com)

Mac Cool

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Dec 2, 2007, 10:10:53 PM12/2/07
to
Joe:

The warmer your house is relative to the outside air, the faster the warm
air will move to the outside, so the tricks to saving money are sealing
air leaks, insulation, then turning down the thermostat in that order. We
use a programable thermostat that warms the house in the morning and
evening, then drops low during the day and night. If you are concerned
about the kids (mine kick the covers also), use a small electric heater to
warm up their room.

--
Mac Cool

Don Klipstein

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Dec 2, 2007, 10:14:35 PM12/2/07
to
In article
<775ea665-c2b7-4a8e...@y43g2000hsy.googlegroups.com>,

In an earlier post I "showed my work" as to how an "average American
home" when in NYC should have heating cost reduced by close to 5% per
degree lowering of the thermostat. That did assume oversimplifying the
"heating season" to October 1 to May 15.
The percentage per degree savings will be less where heating seasons are
colder and more where heating seasons are warmer. However, dollars per
day per degree change of thermostat setting (when you need heat to
some extent or another regardless of thermostat setting) should not vary
much with location; but mainly with design, size, and insulation level of
your home.

If your home will incur a $2,000 heating bill for this heating season
if placed in a climate like that of NYC, and your heating season is
October 1 to May 15, and you have an "average" thermostat setting, then
you would pay about $8.97 per day on average for heat and save close to 45
cents per day per degree of lowering of the thermostat.

You said you can take 60 degrees but your wife would drive you to
earplugs if your home was cooler than 67. That 7 degree difference times
45 cents per day (assuming a home that would cost $2,000 this heating
season if placed in NYC) is $3.15 per day.

$3.15 per day takes only a couple of days to get earplugs, or can buy
enough beer by the case to get one above the legal driving limit every
evening. I would rather not spend the money on greenhouse gas emissions,
trade deficit, burning of limited natural resources, and nations such as
Saudi Arabia (where women cannot drive), Nigeria, and where rape victims
get treated like criminals, or bidding up the price of oil sold by
terrorist-funding nations ...

I would buy the wife some nice hooded sweaters, her choice of nice warm
fuzzy slippers, the cutest pajamas and warm fluffy robes, along these
lines!
Even if that only allows the thermostat to go down from 67 to 64, that
is about $1.35 per day (for a home that would cost 2,000 this heating
season to heat in NYC), and I have been working on a 228 day heating
season here! Even if only over 200 days, that is $270! That should be
about enough to get your wife all dolled up in nice cozy warm clothing
that looks nice and cozy! And that is probably more comfy, more romantic,
sexier and better for your marriage than earplugs!

Even if it takes 2 heating seasons to get your money back on nice warm
clothes to wear in the house, if the clothes last 4 years then you doubled
your money in 4 years. That is 18.9% annual rate of return on investment
and tax-free!

- Don Klipstein (d...@misty.com)

Marsha

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Dec 2, 2007, 10:51:22 PM12/2/07
to
Don Klipstein wrote:
> I would buy the wife some nice hooded sweaters, her choice of nice warm
> fuzzy slippers, the cutest pajamas and warm fluffy robes, along these
> lines!
> - Don Klipstein (d...@misty.com)

Can I be your wife?

Marsha/Ohio

231

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Dec 3, 2007, 12:06:39 AM12/3/07
to

Nope, it tends to cause mockery when on the beach or the solarium etc.


Don Klipstein

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Dec 3, 2007, 12:19:47 AM12/3/07
to

Sorry, no - I am already attached! I would be married to my SO if the
marriage laws where I live were like those nationwide in Canada, Spain,
South Africa, Holland and Belgium, and like the current marriage law
status in the US "State" of Massachusetts (which might change soon).

As in I am a man who would want to buy my husband nice warm-and-cozy
clothes! (Sadly, he has a hangup where he believes that one should not
have to dress warmly but get nice warm heat - my view is that his mother
paid his bills too much! Thankfully he likes computer programming and
electronic project development and some varieties of music to a fair
extent the way I do, and tolerates me being a mad scientist product
development engineer parttime, mostly at home and telecommuting, while
making some of my living as a delivery biker at a sandwich shop because my
brain burns out if I work fulltime at technical work! At least I get
paid to exercise and burn calories and cholesterol!)

- Don Klipstein (d...@misty.com)

Don Klipstein

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Dec 3, 2007, 12:34:22 AM12/3/07
to
In article
<47538ef6$0$22932$5a62...@per-qv1-newsreader-01.iinet.net.au>,
2...@alok.com wrote:

This gets me to think that 2...@alok.com might be the deservedly
widely-hated subtroll from Australia who is so low a subtroll as to gain a
FAQ specifically for him.

Of course thermal underwear is not good in places that get warm without
human intervention! The suggestion was for wearing thermal underwear in
homes that get cooler when heating is decreased to reduce fuel bills!

If my home had a solarium that gets toasty warm when the rest of my home
needs heating effort, then my solarium would be where I would where I look
good in underwear or swimwear! But since I, like most Americans, have to
endure winter and don't own solariums or beaches that are that warm
without adding to heating bills, I like to prefer looking good in sweaters
and winter-running athletic wear when it is wintertime!

- Don Klipstein (d...@misty.com)

231

unread,
Dec 3, 2007, 1:04:15 AM12/3/07
to

<reams of your puerile shit any 2 year old could leave for dead flushed where it belongs>

> Of course thermal underwear is not good in places that get warm without
> human intervention! The suggestion was for wearing thermal underwear
> in homes that get cooler when heating is decreased to reduce fuel bills!

That was a JOKE, Joyce. Get that SoH bypass on medicaid did you, fuckwit ?

> If my home had a solarium that gets toasty warm when the rest of my
> home needs heating effort, then my solarium would be where I would
> where I look good in underwear or swimwear! But since I, like most
> Americans, have to endure winter and don't own solariums or beaches
> that are that warm without adding to heating bills, I like to prefer looking
> good in sweaters and winter-running athletic wear when it is wintertime!

Pity about his stupid comment about ALL OCCASIONS, fuckwit.


Message has been deleted

clams casino

unread,
Dec 3, 2007, 9:04:08 AM12/3/07
to
Don Klipstein wrote:

So how will the cost of additional clothing (and cleaning - wash/dry)
compare vs. a $1-2/day savings in energy (during the heating season)?
- how about for a family of four? Is the net savings worth the
inconvenience?

I suppose 60F may produce savings, but will a marginal reduction to
perhaps 65F significantly outweigh the cost at perhaps 68F after
factoring the cost & cleaning of additional clothing?

clams casino

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Dec 3, 2007, 9:05:17 AM12/3/07
to
231 wrote:

>
>
><reams of your puerile shit any 2 year old could leave for dead flushed where it belongs>
>
>
>

Obvious more "wit" by pathetic Rod.

clams casino

unread,
Dec 3, 2007, 9:06:15 AM12/3/07
to
Mac Cool wrote:

>Don Klipstein:


>
>
>
>>>Nope, it tends to cause mockery when on the beach or the solarium
>>>etc.
>>>
>>>
>> This gets me to think that 2...@alok.com might be the deservedly
>>widely-hated subtroll from Australia who is so low a subtroll as to
>>gain a FAQ specifically for him.
>>
>>
>

>Wow. Take some of that money you save and buy a sense of humor. I bet
>you're wife will appreciate that a lot more than fuzzy slippers.
>
>
>

Hint - Rod is the joke - not his comments.

Jeff

unread,
Dec 3, 2007, 10:28:57 AM12/3/07
to

Actually, the joke wasn't so bad that I would have identified the
author, but the follow up sealed the identity.

Jeff

clams casino

unread,
Dec 3, 2007, 11:22:01 AM12/3/07
to
clams casino wrote:

> Joe wrote:
>
>> I'm struggling with the idea between keeping my thermostat at 66
>> degrees which I need to wear at least two layers of clothing around my
>> house to feel comfortable and 69 degrees with which I can walk around

>> comfortably in a t-shirt. Has any actually calculated actual savings


>> of turning down the thermostat? I've read all the articles about how
>> you can save 10% per each degree you turn down your thermostat but I
>> would like to see if anyone actually have some real numbers to back me
>> up. I'm not sure it's worth $30 a month to live like this.
>>
>>
>
>

> No hard figures, but logically there is a savings for any reduced temp
> level (except with heat pumps).
>

> I suggest using programmable thermostats with several daily time
> adjustments. They should pay for themselves within months.
>

> For a start, we have up and down zones / thermostats. During the day,
> we keep the upstairs at 62 (doors shut so the heat from downstairs
> stays primarily downstairs), with the heat increased to 68 early
> evening and down to 66 about midnight.
>
> Downstairs, we set the thermostat at 62 at 10pm & step up the temp to

> 66 about 4am, 67 at 8am, 68 at 3pm and 69 at 5pm. When we leave the
> house, we drop the thermostat a few degrees, usually resetting when we
> reenter. The thermostat is near the door we use most, so it's no

> bother to hit the buttons up / down as desired. During the morning,
> 66-67 can be comfortable, but there is always a chill about the time
> the sun drops so the change helps keep the comfort..
>

> This may not work with a heat pump (secondary heating will kill the
> savings), but should work with gas & oil.
>

Did some calculating. Granted there is not enough data for statistical
validity, but I did retrieve some heating information over the past five
years.


year Degree days CCF gas ccf/degree days
03 6010 1168 0.194
04 5579 1087 0.195
05 5842 1098 0.188
06 4927 876 0.178
07 5223 893 0.171


I installed the programmable thermostats in the fall of 05. Before that
time, we tended to keep the house about 67F. Since december 07 data
are not yet available, I factored in the average Dec data from previous
years. Also, since we average about 30 CCF per month for hot water
(washing, showers, dish washer,etc), I subtracted 360 CCF for each year
to essentially net the gas used just for heating.

The above data indicate I'm saving about 10-12% since installing the
thermostats. In addition to saving perhaps $150/yr (more than enough to
pay for the two programmable thermostats - plus a portion of the gas
bill is fixed with a portion variable) the altering of temperature
actually adds to our comfort level where we prefer a lower sleeping temp
during the night and like the incremental boost around sun down.


Jeff

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Dec 3, 2007, 11:28:04 AM12/3/07
to

I agree with all of this. It's sound advice.

*After* you do all of those, which will yield the quickest return on
your investment (and the smallest investment), consider lowering the
cost of your heat. If you have an old gas furnace, a condensing furnace
could save at least 15% of your heating. There's other options:

<URL: http://www.aceee.org/consumerguide/heating.htm />

I've been replacing much of my heating with solar, that's not
something the average family would consider, but it fits in nicely with
my lifestyle. It also reduces my carbon foot print, which is good for
the home planet.

There's a nice site on solar here:

<URL: http://builditsolar.com />

With anything ,consider how long the payback period is. Some
commercial projects can have very long paybacks. I tend to think in
terms of two years (which is very short)... but I don't count my labor.

Jeff


>

Marsha

unread,
Dec 3, 2007, 7:47:56 PM12/3/07
to

Well, okay, but you could still buy me all those things, with no strings
attached ;-) To be fair, my own SO would also buy those things for me.
He's just so......sensible.

Marsha/Ohio

Lou

unread,
Dec 3, 2007, 8:46:40 PM12/3/07
to
"Jeff" <jeff@spam_me_not.com> wrote in message
news:13l6lhk...@corp.supernews.com...

> A small cold air leak is a lot of BTUs going out the door. Look for any
> holes in your house envelope and fix those. Then attack the least
> insulated parts of your home.
>
> The formula for heat loss through insulation is simple:
>
> (Area (in SF)/ R value) * (T Indoors F - T Outdoors F)
>
> So 20 SF of R1 single pane windows will lose 1000 BTUs/hr if it is
> 70F inside and 20F outside. And much more if there is any air leakage.

To give that number a little perspective, a gallon of home heating oil
contains about 139,000 BTU. Your furnace doesn't deliver all that as heat,
some goes up the chimney. If your furnace is 80% efficient, you get roughly
111,200 BTU out of a gallon. So that window causes you to burn an extra
gallon of oil every 111 hours, or very roughly every 4.5 days. 4-5 of those
windows will mean burning an extra gallon of oil a day. Assuming a constant
temperature difference.


Lou

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Dec 3, 2007, 8:48:49 PM12/3/07
to

"Joe" <joe...@gmail.com> wrote in message
news:775ea665-c2b7-4a8e...@y43g2000hsy.googlegroups.com...

If it's cooler, the kids will stop kicking their covers off - chances are
they're doing that because they're too warm.

The math for my house wouldn't tell you anything about your house.


Anthony Matonak

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Dec 3, 2007, 11:01:14 PM12/3/07
to
Lou wrote:
...

> If it's cooler, the kids will stop kicking their covers off - chances are
> they're doing that because they're too warm.

I'll second that. I've noticed that when the temperature drops under
40F in my bedroom the last thing I'll do is kick the covers off. :)

Anthony

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