Re: Best space heater for winter?

William Boyd wrote:

Neon John wrote:

On Tue, 27 Sep 2005 08:41:47 -0700, "Ben Hogland"
<benhogland@xxxxxxxxxxx> wrote:



This entire thread about wind-chill is all very interesting but whether or not wind-chill is important to an RVer is really the question. If you are trying to maintain a certain temp above freezing inside the RV and around the pipes, the answer is yes. The amount of energy required to maintain a temp above freezing will be more if the wind-chill outside is -50 vs 31. This is, of course, if the real temp is below freezing but even when above freezing, if you are trying to maintain, say, 70 degrees inside the RV, the lower the wind-chill, the more energy needed to maintain the heat inside. 



The answer to that is no, it doesn't.  Wind chill is strictly an
attempt to quantify the product of temperature and wind velocity.

In a decently insulated RV, the outside skin will be essentially at
the outside temperature or a few degrees above.  Wind blowing across a
surface at ambient temperature has no effect or in the case of the
skin being a little warmer in still air, not enough to matter.

Glass is another matter.  Moving air across glass will make some
difference.  If one has proper window coverings in place, the
difference will be small.

If your RV has defects that allow air infiltration then if the wind
blows in the right (wrong?) direction then it will matter but that's
too specific a situation to generalize.

There are some other minor considerations such as the water heater. If
it isn't on and the wind is blowing just right, there might be an
added amount of cold air circulation through the flame tube.  Of no
consequence to the comfort level, at least until the water heater
freezes and one can't take a shower!

In my case, with a well insulated rig and thanks to Mr Handy Foam in a
can, no air infiltration to speak of, all the wind does is gently rock
me to sleep.  I've camped in blizzards on top of local mountains where
the snow has been blowing horizontal and still been warm and
comfortable inside the rig.

John

---
John De Armond
See my website for my current email address
http://www.johngsbbq.com
Cleveland, Occupied TN

I disagree with all of your theories, tell you why. In a structure that is to be heated and cooled by an air conditioner/ furnace, a heat gain and loss study is done. It depends on the R factor insulation contained in the walls, floor and ceiling. You loose or gain temperature mostly through the windows. Never the less the structure has transfered a certain amount of temperature to the outer surface and if the wind blows that transfered air away, more replaces it, resulting in more temperature loss. This to me is considered a wind chill factor.

Heat loss factor. Wind Chill has a specific definition dealing with skin temperature. Period.
LZ
.

Relevant Pages

  • Re: Best space heater for winter?
    ... The amount of energy required to maintain a temp above freezing will be more if the wind-chill outside is -50 vs 31. ... attempt to quantify the product of temperature and wind velocity. ... skin being a little warmer in still air, ...
    (rec.outdoors.rv-travel)
  • Re: Air conditioner woes.
    ... I think that the compressor tripped on high condensing pressure. ... temperature That is, ... Another effect has to do with the wind. ... direction is just right it can slow or stop the condenser air flow. ...
    (rec.outdoors.rv-travel)
  • Re: Air conditioner woes.
    ... I think that the compressor tripped on high condensing pressure. ... temperature That is, ... Another effect has to do with the wind. ... direction is just right it can slow or stop the condenser air flow. ...
    (rec.outdoors.rv-travel)
  • Re: Frozen ground
    ... grass temperature to be above freezing (similar to the air temperature with ... while the roads/pavements were at or below freezing to allow the ... Presumably the air is very moist ... lower) still has no wind and a temperature below freezing. ...
    (uk.sci.weather)
  • Re: Best space heater for winter?
    ... >or not wind-chill is important to an RVer is really the question. ... >maintain a temp above freezing will be more if the wind-chill outside ... attempt to quantify the product of temperature and wind velocity. ... skin being a little warmer in still air, ...
    (rec.outdoors.rv-travel)