i been experimenting ... i put a 40 watt lamp in the water holding
compartment . it got down to 28 last night and was toasty 45 inside
compartment. the lamp dont use much power and i just hve it on when i
expect the temp to go below freezing. yes i did winterize but iam
assuming little bits of water are still in the system even after
blowing the system with compressed air.
GBinNC - 03 Jan 2008 22:42 GMT
>i been experimenting ... i put a 40 watt lamp in the water holding
>compartment . it got down to 28 last night and was toasty 45 inside
>compartment. the lamp dont use much power and i just hve it on when i
>expect the temp to go below freezing.
That's what I did with my Class B when we lived in the mountains. I
didn't want to winterize it, because we used it weekly, year 'round, and
I wanted to have water and plumbing available when we were traveling. It
stayed parked outside (no garage or carport) and the temperature often
got into the 20s or less overnight, and sometimes much lower than that.
Sometimes it didn't get above freezing for many days.
I permanently mounted a utility light socket on a sidewall under the
sofa where the fresh water tank and most of the plumbing are, and I
never had a problem with freezing. I never checked the temperature under
there, but you're right, a light bulb (I used a 60w one, IIRC) will
really warm up a small, enclosed area.
GB in NC
IlBeBauck@gmail.com - 04 Jan 2008 00:18 GMT
On Jan 3, 4:21 pm, "knea...@post.com" <knea...@post.com> wrote:
> i been experimenting ... i put a 40 watt lamp in the water holding
> compartment . it got down to 28 last night and was toasty 45 inside
> compartment. the lamp dont use much power and i just hve it on when i
> expect the temp to go below freezing. yes i did winterize but iam
> assuming little bits of water are still in the system even after
> blowing the system with compressed air.
REPLY: Thanks for this tip. I wonder what the outside temp would
have to get down to while still maintaining the compartment at 33
f . using the 40 amp lamp. (?)
Steve Calvin - 04 Jan 2008 00:41 GMT
> On Jan 3, 4:21 pm, "knea...@post.com" <knea...@post.com> wrote:
>> i been experimenting ... i put a 40 watt lamp in the water holding
[quoted text clipped - 7 lines]
> have to get down to while still maintaining the compartment at 33
> f . using the 40 amp lamp. (?)
That would depend on the cubic feet of the compartment,
along with, is it drafty or not. Too many variables. If in
doubt, use a bigger bulb. Even running a 100 watt bulb
would be preferable and cheaper than replacing tanks and/or
plumbing.

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Steve
http://adirondackoutdoors.forumcircle.com
Dave and Trudy - 04 Jan 2008 09:52 GMT
On Jan 3, 4:21 pm, "knea...@post.com" <knea...@post.com> wrote:
> i been experimenting ... i put a 40 watt lamp in the water holding
> compartment . it got down to 28 last night and was toasty 45 inside
> compartment. the lamp dont use much power and i just hve it on when i
> expect the temp to go below freezing. yes i did winterize but iam
> assuming little bits of water are still in the system even after
> blowing the system with compressed air.
REPLY: Thanks for this tip. I wonder what the outside temp would
have to get down to while still maintaining the compartment at 33
f . using the 40 amp lamp. (?)
I wonder what wattage bulb one would require to maintain 45F when the
ambient temperature is -45F?
DaveD (North Pole AK).
Will Sill - 04 Jan 2008 12:51 GMT
I see where "Dave and Trudy" <dtdodson@acsalaska.net> contributed:
>REPLY: Thanks for this tip. I wonder what the outside temp would
>have to get down to while still maintaining the compartment at 33
>f . using the 40 amp lamp. (?)
A "40 amp lamp" would heat the whole trailer!!
Will Sill
I post to help rv'ers and to annoy the snot outa idjits,
morons, and liberal kooks. If you're annoyed, check yer
mirror to see why.
Dave and Trudy - 05 Jan 2008 08:56 GMT
>I see where "Dave and Trudy" <dtdodson@acsalaska.net> contributed:
>
[quoted text clipped - 8 lines]
> morons, and liberal kooks. If you're annoyed, check yer
> mirror to see why.
Sorry Will,
You attributed the post to the wrong poster. I realize that it is easy to
become confused when one get OLD! I know I do (G)...I asked what size lamp
it would require to maintain 45F when the ambient temp was -40F? Or
something like that!
Cheers DaveD
Will Sill - 05 Jan 2008 13:59 GMT
I see where "Dave and Trudy" <dtdodson@acsalaska.net> contributed:
Will:
>> A "40 amp lamp" would heat the whole trailer!!
D&T:
>Sorry Will,
>You attributed the post to the wrong poster. I realize that it is easy to
>become confused when one get OLD! I know I do (G)...I asked what size lamp
>it would require to maintain 45F when the ambient temp was -40F? Or
>something like that!
Sorry 'bout the quoting error.
Your question is impossible to answer without knowing the size of the
compartment, how well insulated, wind speed, humidity, etc ad nauseum.
Will Sill
I post to help rv'ers and to annoy the snot outa idjits,
morons, and liberal kooks. If you're annoyed, check yer
mirror to see why.
miles - 05 Jan 2008 14:04 GMT
> Sorry Will,
> You attributed the post to the wrong poster. I realize that it is easy to
> become confused when one get OLD! I know I do (G)...I asked what size lamp
> it would require to maintain 45F when the ambient temp was -40F? Or
> something like that!
He was commenting on this:
>>I wonder what the outside temp would
>>have to get down to while still maintaining the compartment at 33
>>f . using the 40 amp lamp.
A 40 amp lamp would be one heck of a huge lamp!!
You can get an idea of what it might take using 1 Watt = 3.4 btu's.
Dave in Lake Villa - 04 Jan 2008 13:42 GMT
'I wonder what wattage bulb one would require to maintain 45F when the
ambient temperature is -45F?
DaveD (North Pole AK).'
REPLY: I wonder why you have an RV at the North Pole, does your RV
Generator start for excercising it each month, where you go on
vacation , and if you get ticked off dealing with the extreme climate
(?)
ratatouillerat@yahoo.com - 06 Jan 2008 07:02 GMT
>'I wonder what wattage bulb one would require to maintain 45F when the
>ambient temperature is -45F?
[quoted text clipped - 4 lines]
>vacation , and if you get ticked off dealing with the extreme climate
>(?)
Umm, North Pole AK is a town in AK near Fairbanks, not the actual
North Pole. In fact, it's below the Arctic Circle.
Pete

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Jud Hardcastle - 04 Jan 2008 15:11 GMT
In article <c4ac0c24-9599-437c-8c9d-375490b336e6
@l6g2000prm.googlegroups.com>, kneal44@post.com says...
> i been experimenting ... i put a 40 watt lamp in the water holding
> compartment . it got down to 28 last night and was toasty 45 inside
> compartment. the lamp dont use much power and i just hve it on when i
> expect the temp to go below freezing. yes i did winterize but iam
> assuming little bits of water are still in the system even after
> blowing the system with compressed air.
FYI there is a fairly inexpensive plug available at hardware stores that
turns on at a fixed temp (don't recall exactly but it could have been
45) that's used a lot in wellhouses etc to burn a bulb or heat lamp only
when needed.

Signature
Jud
Dallas TX USA
GBinNC - 04 Jan 2008 15:18 GMT
>FYI there is a fairly inexpensive plug available at hardware stores that
>turns on at a fixed temp (don't recall exactly but it could have been
>45) that's used a lot in wellhouses etc to burn a bulb or heat lamp only
>when needed.
Yep. I have one on the coolant preheater on my standby Onan genset here
at the house.
They're available preset at a couple of different temperatures.
GB in NC
tim fm ct - 20 Jan 2008 16:30 GMT
>i been experimenting ... i put a 40 watt lamp in the water holding
> compartment . it got down to 28 last night and was toasty 45 inside
> compartment. the lamp dont use much power and i just hve it on when i
> expect the temp to go below freezing. yes i did winterize but iam
> assuming little bits of water are still in the system even after
> blowing the system with compressed air.
kneal44,
I live in Connecticut and use the rv throughout the winter
months. Here's what I came up with.
I found a high current thermal switch that closes at 35 degrees and opens at
42 or 45, I can't remember exactly. I wired it in series in an extention
cord. Then I have the flexibility to pug in a few lights as needed. I use
those clip on lights with the aluminum reflectors. ( I remove the reflectors
to take up less room) They don't move even when traveling. I have one under
the counter under the kitchen sink and I have one in the basement where the
pump, and filter and drain stuff is.
I keep the rig plugged in at home and sometimes, I set the furnace to 40
degrees.
I also have a remote indoor out door thermometer in the coach and the
basement. I haven't winterized since using this and it's great.
If you don't want to keep the rig fully plugged in, you can just run the
extension cord with the thermal switch into your rig.
Hope this helps. It works really great for me.
Tim fm
CT