electric blankets
 

I treid to post this earlier but do not think that it worked. forgive
me if it double post. Does anyone use electric blankets on board? I
find that at home I only use it on the lowest settings and do not heat
the rooms. How are they with battery power? I have a battery size 27,
and a 1750 Watt inverter. Would I be able to use it all night? How
about with shore power? Thanks

electric blankets
 

A regular single bed electric blanket uses about 150 watts on high and about
50 on the lowest setting. Powered through an inverter you can expect to eat
5 to 6 amps/hour on low. .

You might want to look at a 12V electric truckers blanket
http://www.roadtrucker.com/12-volt-h...s-sheets-1.htm but they
are only 57" x 27". Set on high 4.2 amps/hour it would eat about 32 amp
hours a night. A fully charged group 27 will supply about 45 usable amp
hours to 50% so you will not be able to run much of anything else. A 58'x42
will eat 9 amps and pretty well drain a group 27.

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com

"richard" wrote in message
oups.com...
I treid to post this earlier but do not think that it worked. forgive
me if it double post. Does anyone use electric blankets on board? I
find that at home I only use it on the lowest settings and do not heat
the rooms. How are they with battery power? I have a battery size 27,
and a 1750 Watt inverter. Would I be able to use it all night? How
about with shore power? Thanks

electric blankets
 

This is another source for 12 volt electric blankets.
http://www.electrowarmth.com/index.htm Actually these aren't blankets but
pads, they go on the mattress under the sheets instead of over you. We have
a 120 volt one home and love it.

--
Ken Heaton & Anne Tobin
Cape Breton Island, Canada
kenheaton at eastlink dot ca

"Glenn Ashmore" wrote in message
news:C5eGf.23339$Dh.20958@dukeread04...
A regular single bed electric blanket uses about 150 watts on high and
about 50 on the lowest setting. Powered through an inverter you can expect
to eat 5 to 6 amps/hour on low. .

You might want to look at a 12V electric truckers blanket
http://www.roadtrucker.com/12-volt-h...s-sheets-1.htm but they
are only 57" x 27". Set on high 4.2 amps/hour it would eat about 32 amp
hours a night. A fully charged group 27 will supply about 45 usable amp
hours to 50% so you will not be able to run much of anything else. A
58'x42 will eat 9 amps and pretty well drain a group 27.

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com

"richard" wrote in message
oups.com...
I treid to post this earlier but do not think that it worked. forgive
me if it double post. Does anyone use electric blankets on board? I
find that at home I only use it on the lowest settings and do not heat
the rooms. How are they with battery power? I have a battery size 27,
and a 1750 Watt inverter. Would I be able to use it all night? How
about with shore power? Thanks

electric blankets
 

Ken Heaton wrote:
This is another source for 12 volt electric blankets.
http://www.electrowarmth.com/index.htm Actually these aren't blankets but
pads, they go on the mattress under the sheets instead of over you. We have
a 120 volt one home and love it.


We used to have an electric blanket unril I read somewhere about the
dangers of having an electro-magnetic field so close. Never used the
blanket again.... now I generate my own heat. :-()

electric blankets
 

Some manufacturers have dramatically reduced the magnetic field
intensities of their electric blankets in response to these concerns. It
would be useful to do some research on the subject before making a purchase.

Scientific and political opinion varies on the health risks of these fields.

Chuck

Don White wrote:
Ken Heaton wrote:

This is another source for 12 volt electric blankets.
http://www.electrowarmth.com/index.htm Actually these aren't blankets
but pads, they go on the mattress under the sheets instead of over
you. We have a 120 volt one home and love it.


We used to have an electric blanket unril I read somewhere about the
dangers of having an electro-magnetic field so close. Never used the
blanket again.... now I generate my own heat. :-()

electric blankets
 

So what's more efficient... using a straight 12V blanket or using a
110V one through an inverter? Seems the former would be more efficient
overall, although I don't know if the difference is enough to worry
about.

electric blankets
 

For blankets drawing the same number of watts, the inverter approach is
probably less efficient. Depends in part on whether there are
significant losses in the cables from the battery to the blanket. But
the good news is that all of the losses will probably wind up as an
additional heat contribution to the boat's interior! :)

Chuck


Keith wrote:
So what's more efficient... using a straight 12V blanket or using a
110V one through an inverter? Seems the former would be more efficient
overall, although I don't know if the difference is enough to worry
about.

electric blankets
 

We have one on our boat, and use it. Boy what a great thing! It is a
queen sized one, and we rarely run it higher than 2 (scale of 10); we
have a comforter over it. At that level, it draws a little more DC than
our anchor light. It is a standard 110v model, and we run it thru the
inverter.

NOTE: it is important to be sure to remove all the parasitic loads
(read: wall bricks) if you are going to leave the inverter on for long
periods, like over night. They consume an inordinate amount of power,
even when they are doing nothing.

bob
s/v Eolian

richard wrote:
I treid to post this earlier but do not think that it worked. forgive
me if it double post. Does anyone use electric blankets on board? I
find that at home I only use it on the lowest settings and do not heat
the rooms. How are they with battery power? I have a battery size 27,
and a 1750 Watt inverter. Would I be able to use it all night? How
about with shore power? Thanks

electric blankets
 

In article ,
Don White wrote:
Ken Heaton wrote:
This is another source for 12 volt electric blankets.
http://www.electrowarmth.com/index.htm Actually these aren't blankets but
pads, they go on the mattress under the sheets instead of over you. We have
a 120 volt one home and love it.


We used to have an electric blanket unril I read somewhere about the
dangers of having an electro-magnetic field so close. Never used the
blanket again.... now I generate my own heat. :-()

I sure hope you don't have a microwave or ever come near large
buildings, the latter of which gives off significantly more than
background radiation. :-)


--
Capt. JG @@
www.sailnow.com

electric blankets
 

Thanks everyone . Great info as always.

electric blankets
 

Don White wrote:
Ken Heaton wrote:

This is another source for 12 volt electric blankets.
http://www.electrowarmth.com/index.htm Actually these aren't blankets
but pads, they go on the mattress under the sheets instead of over
you. We have a 120 volt one home and love it.


We used to have an electric blanket unril I read somewhere about the
dangers of having an electro-magnetic field so close. Never used the
blanket again.... now I generate my own heat. :-()

Haven't heard about this. Any source on information ?

Thank you,
Courtney

electric blankets
 

The usual.

Do a search on "emf electric blanket"

Chuck


Courtney Thomas wrote:
Don White wrote:

Ken Heaton wrote:

This is another source for 12 volt electric blankets.
http://www.electrowarmth.com/index.htm Actually these aren't
blankets but pads, they go on the mattress under the sheets instead
of over you. We have a 120 volt one home and love it.


We used to have an electric blanket unril I read somewhere about the
dangers of having an electro-magnetic field so close. Never used the
blanket again.... now I generate my own heat. :-()


Haven't heard about this. Any source on information ?

Thank you,
Courtney

electric blankets
 

Courtney Thomas wrote:
Don White wrote:

Ken Heaton wrote:

This is another source for 12 volt electric blankets.
http://www.electrowarmth.com/index.htm Actually these aren't
blankets but pads, they go on the mattress under the sheets instead
of over you. We have a 120 volt one home and love it.


We used to have an electric blanket unril I read somewhere about the
dangers of having an electro-magnetic field so close. Never used the
blanket again.... now I generate my own heat. :-()


Haven't heard about this. Any source on information ?

Thank you,
Courtney

Most recent warnings are about risk of fire...
but I did a search using "electric blanket" + "electro-magnetic field"
(probably could use EMF also) and a number of sites popped up.
What's believable on the internet????
I don't know for sure but do believe in playing it safe
http://www.enotalone.com/article/2708.html
http://brain101.info/EMF.php

electric blankets
 

All you need to do is wrap yourself in aluminum foil. Not just your head -
that only works to protect you from satellite spying.

"Don White" wrote in message
...
Courtney Thomas wrote:
Don White wrote:

Ken Heaton wrote:

This is another source for 12 volt electric blankets.
http://www.electrowarmth.com/index.htm Actually these aren't blankets
but pads, they go on the mattress under the sheets instead of over you.
We have a 120 volt one home and love it.


We used to have an electric blanket unril I read somewhere about the
dangers of having an electro-magnetic field so close. Never used the
blanket again.... now I generate my own heat. :-()


Haven't heard about this. Any source on information ?

Thank you,
Courtney

Most recent warnings are about risk of fire...
but I did a search using "electric blanket" + "electro-magnetic field"
(probably could use EMF also) and a number of sites popped up.
What's believable on the internet????
I don't know for sure but do believe in playing it safe
http://www.enotalone.com/article/2708.html
http://brain101.info/EMF.php

electric blankets
 

The foil is unnecessary. It is well-known that all human cells are
completely immune to all electromagnetic fields and non-ionizing
radiation, without regard to intensity, orientation, or frequency. Well,
except for radar, radio transmitters, microwave ovens, and at most maybe
just one other thing that is probably of no importance.

Do I have that right?

Chuck




Dennis Lee wrote:
All you need to do is wrap yourself in aluminum foil. Not just your head -
that only works to protect you from satellite spying.

"Don White" wrote in message
...

Courtney Thomas wrote:

Don White wrote:


Ken Heaton wrote:


This is another source for 12 volt electric blankets.
http://www.electrowarmth.com/index.htm Actually these aren't blankets
but pads, they go on the mattress under the sheets instead of over you.
We have a 120 volt one home and love it.


We used to have an electric blanket unril I read somewhere about the
dangers of having an electro-magnetic field so close. Never used the
blanket again.... now I generate my own heat. :-()


Haven't heard about this. Any source on information ?

Thank you,
Courtney

Most recent warnings are about risk of fire...
but I did a search using "electric blanket" + "electro-magnetic field"
(probably could use EMF also) and a number of sites popped up.
What's believable on the internet????
I don't know for sure but do believe in playing it safe
http://www.enotalone.com/article/2708.html
http://brain101.info/EMF.php

electric blankets
 

Now I know what gets into the old lady every once in a while!!!
It's the hair blower/dryer!!!!!!!!
Too close to the brain! Fry time !!!
So its not pms after all!!!! I wondered why she still had pms at her age!
g



"chuck" wrote in message
hlink.net...
The foil is unnecessary. It is well-known that all human cells are
completely immune to all electromagnetic fields and non-ionizing
radiation, without regard to intensity, orientation, or frequency. Well,
except for radar, radio transmitters, microwave ovens, and at most maybe
just one other thing that is probably of no importance.

Do I have that right?

Chuck




Dennis Lee wrote:
All you need to do is wrap yourself in aluminum foil. Not just your
head -
that only works to protect you from satellite spying.

"Don White" wrote in message
...

Courtney Thomas wrote:

Don White wrote:


Ken Heaton wrote:


This is another source for 12 volt electric blankets.
http://www.electrowarmth.com/index.htm Actually these aren't
blankets
but pads, they go on the mattress under the sheets instead of over
you.
We have a 120 volt one home and love it.


We used to have an electric blanket unril I read somewhere about the
dangers of having an electro-magnetic field so close. Never used the
blanket again.... now I generate my own heat. :-()


Haven't heard about this. Any source on information ?

Thank you,
Courtney

Most recent warnings are about risk of fire...
but I did a search using "electric blanket" + "electro-magnetic field"
(probably could use EMF also) and a number of sites popped up.
What's believable on the internet????
I don't know for sure but do believe in playing it safe
http://www.enotalone.com/article/2708.html
http://brain101.info/EMF.php

electric blankets
 

In article ,
Dennis Lee wrote:
All you need to do is wrap yourself in aluminum foil. Not just your head -
that only works to protect you from satellite spying.

TESTEMONIAL: I tried this and it works! However, it's very hard to
type, so I stopped.

--
Capt. JG @@
www.sailnow.com

electric blankets
 

There is one other thing to keep in mind with the inverter setup. I tried
using one and found that the blanket would NOT work with a square wave
inverter. It needed a true sine wave. I can't imagine that the problem is
in the resistive heating but suppose it is in the control unit. I have
heard from others reporting the same problem.

Rich
"richard" wrote in message
ups.com...
Thanks everyone . Great info as always.




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http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----

electric blankets
 

I find that well made sleeping bags get plenty warm from body heat.
But I use heating pads or small heating blankets to warm them up
before entry cuz I'm a woos on real cold nights and that first
5 minutes inside is much nicer when it's already warm.

electric blankets
 

And it is difficult to beat a hot water bottle as a low-tech solution as
long as the galley stove is available. Even works with sea water!

Chuck


8906 wrote:
I find that well made sleeping bags get plenty warm from body heat.
But I use heating pads or small heating blankets to warm them up
before entry cuz I'm a woos on real cold nights and that first
5 minutes inside is much nicer when it's already warm.

electric blankets
 

I can think of a much more enjoyable way to get the sleeping bag warm but I
am to old and married for it to work very well. :-)

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com

"chuck" wrote in message
link.net...
And it is difficult to beat a hot water bottle as a low-tech solution as
long as the galley stove is available. Even works with sea water!

Chuck


8906 wrote:
I find that well made sleeping bags get plenty warm from body heat. But I
use heating pads or small heating blankets to warm them up before entry
cuz I'm a woos on real cold nights and that first 5 minutes inside is
much nicer when it's already warm.

electric blankets
 

Your opinion, or hers?

Glenn Ashmore wrote:
I can think of a much more enjoyable way to get the sleeping bag warm but I
am to old and married for it to work very well. :-)

electric blankets
 

i would think that having one on board for emergencies might be nice,
like if you fall into the water in the north atlantic and get
hypothermia really bad and need to get warmed up or something. i
remember from my sailing class that the instructor said that when your
body gets down to a certain temperature it can kind of maintain it's
temperature but that it doesn't produce enough heat to warm itself back
up, even with blankets and things piled up on it. so you have to have
some kind of external heat, from another person wrapping around you, an
electric blanket, a fire, etc, to warm back up. ok, so that doesn't
make sense to me, but that's what he said. i would imagine that no
matter how little heat you were producing if you covered up with enough
blankets eventually you'd have to get warm, but then if i had a license
to practice medicine it would have to be out of a cracker jack box,
what do i know about it. :)

but other than for hypothermia, i wouldn't bother. i was kind of cold
this winter so i tossed a couple of thin cheapie 100% cotton blankets
from walmart on top of my bed and i'm telling you it sure heated things
up. even when it's really cold i usually have to fold one or two of
them back or it's just too hot to sleep at night.

electric blankets
 

Gary wrote:
purple_stars wrote:

i would think that having one on board for emergencies might be nice,
like if you fall into the water in the north atlantic and get
hypothermia really bad and need to get warmed up or something. i
remember from my sailing class that the instructor said that when your
body gets down to a certain temperature it can kind of maintain it's
temperature but that it doesn't produce enough heat to warm itself back
up, even with blankets and things piled up on it. so you have to have
some kind of external heat, from another person wrapping around you, an
electric blanket, a fire, etc, to warm back up. ok, so that doesn't
make sense to me, but that's what he said. i would imagine that no
matter how little heat you were producing if you covered up with enough
blankets eventually you'd have to get warm, but then if i had a license
to practice medicine it would have to be out of a cracker jack box,
what do i know about it. :)

but other than for hypothermia, i wouldn't bother. i was kind of cold
this winter so i tossed a couple of thin cheapie 100% cotton blankets
from walmart on top of my bed and i'm telling you it sure heated things
up. even when it's really cold i usually have to fold one or two of
them back or it's just too hot to sleep at night.

We have a thing called a bear hugger onboard. It is like a sleeping bag
made out of space blanket type stuff that has a device like a hair dryer
that blows warm air inside it. It is specifically designed for boats
and hypothermia.

Is that the same thing as Bair Hugger ?

Thanks,
Courtney

electric blankets
 

Gary wrote:
purple_stars wrote:

i would think that having one on board for emergencies might be nice,
like if you fall into the water in the north atlantic and get
hypothermia really bad and need to get warmed up or something. i
remember from my sailing class that the instructor said that when your
body gets down to a certain temperature it can kind of maintain it's
temperature but that it doesn't produce enough heat to warm itself back
up, even with blankets and things piled up on it. so you have to have
some kind of external heat, from another person wrapping around you, an
electric blanket, a fire, etc, to warm back up. ok, so that doesn't
make sense to me, but that's what he said. i would imagine that no
matter how little heat you were producing if you covered up with enough
blankets eventually you'd have to get warm, but then if i had a license
to practice medicine it would have to be out of a cracker jack box,
what do i know about it. :)

but other than for hypothermia, i wouldn't bother. i was kind of cold
this winter so i tossed a couple of thin cheapie 100% cotton blankets
from walmart on top of my bed and i'm telling you it sure heated things
up. even when it's really cold i usually have to fold one or two of
them back or it's just too hot to sleep at night.

We have a thing called a bear hugger onboard. It is like a sleeping bag
made out of space blanket type stuff that has a device like a hair dryer
that blows warm air inside it. It is specifically designed for boats
and hypothermia.

Forgot to ask, what do they cost, please ?

Thanks again,
Courtney