> > I couldn't find anything in the archives about this. If I missed
> > something please feel free to point me towards the relevant
[quoted text clipped - 19 lines]
> behind seat heaters is to raise the seat temperature from some very
> low number to body temperature. Not to boil water.
> > > I couldn't find anything in the archives about this. If I missed
> > > something please feel free to point me towards the relevant
[quoted text clipped - 25 lines]
>
> "Too hot to touch" is roughly 160F.
That is the temperature for cooking most meat. Hardly comfortable.
>I was able to find heated seats on
> line that went to about 135F.
Heat output is cumulative when you are sitting on the seat. It builds
up and that seat would get very hot, indeed dangerous if temperatures
were held to that level. I doubt that you would find a seat that
heats to 135 degrees let alone 160 degrees to at all comfortable.
Think about what happens to your body once the outside temperature
begins to approach and exceed body temperature.
> The seats were originally set at 98F, which is just silly.
That's human body temperature which would seem to be about the right
temperature setting.
> The dealer
> cranked them to 109.5F. What am I to do now, take the car back in, get
> charged an hour's work only to be told they *do* work?
Yup.
They do work as designed. Seat heaters are designed to do little more
than take the chill off the seat bottom raise it to body temperature.
Why anyone would want a seat to be radiating heat at 160 degrees is
beyond comprehension.
>- Hide quoted text -
>
> - Show quoted text -
Chris Mayhew - 11 Dec 2007 13:13 GMT
> Yup.
> They do work as designed. Seat heaters are designed to do little more
> than take the chill off the seat bottom raise it to body temperature.
> Why anyone would want a seat to be radiating heat at 160 degrees is
> beyond comprehension.
I wasn't aruuing for seats that hot, just giving some temp
comparisons.
The questions still remains why my seats are not as hot as the Volvo I
owned before this one or the Honda Accord I currently own. Neither my
wife nor I find them satisfactory.
eastender - 11 Dec 2007 13:37 GMT
> The questions still remains why my seats are not as hot as the Volvo I
> owned before this one or the Honda Accord I currently own. Neither my
> wife nor I find them satisfactory.
We've also found the haeted seats in our 2001 V70 not as good as an S40 we
had before. How do you turn the heat up?
E.
Stephen Henning - 11 Dec 2007 19:39 GMT
> > The questions still remains why my seats are not as hot as the Volvo I
> > owned before this one or the Honda Accord I currently own. Neither my
> > wife nor I find them satisfactory.
>
> We've also found the haeted seats in our 2001 V70 not as good as an S40 we
> had before. How do you turn the heat up?
My '01 V70 heated seats are the first ones that had two levels of heat.
That is the only adjustment: high, low, off. I find that they are very
hot, my wife says the aren't hot. I wear a short coat and my trousers
are the only thing between my leg and the seat and it gets uncomfortably
hot. My wife wears a long coat, so she never feels the heat.
Heated seats are actually intended to take the chill out of the seat and
provide a neutral surface, not heat up your body. Of course the heat
is much more important with a leather seat than with a fabric seat.
Leather gets hot in the summer and stays cold in the winter. Fabric is
neutral all year long. It seams that Volvo heated seats have a thermal
switch that detects when the heat is getting too high and turns them
down to a low setting. That is entire an empirical observation. I have
never taken one apart and seen the thermal switch.

Signature
Cheers, Steve Henning in Reading, PA, USA
Owned '67,'68,'71,'74,'79,'81,'87,'93,'95 & '01 Volvos.
The '67,'74,'79,'87,'95 and '01 through European Delivery.
http://rhodyman.net/homevo.html
John Robertson - 12 Dec 2007 05:07 GMT
maybe the fat tissue is different as well my passenger seat rippled because
of too much heat now its fine after use with out the heater on
>> > The questions still remains why my seats are not as hot as the Volvo I
>> > owned before this one or the Honda Accord I currently own. Neither my
[quoted text clipped - 18 lines]
> down to a low setting. That is entire an empirical observation. I have
> never taken one apart and seen the thermal switch.
eastender - 12 Dec 2007 10:04 GMT
> Heated seats are actually intended to take the chill out of the seat and
> provide a neutral surface, not heat up your body.
I'm not that bothered - it's just that the S40 seats were much warmer and
faster to heat up than our V70 (both cars have leather seats).
E.
Roadie - 13 Dec 2007 13:20 GMT
> > Heated seats are actually intended to take the chill out of the seat and
> > provide a neutral surface, not heat up your body.
[quoted text clipped - 3 lines]
>
> E.
The S40 seats are a lot smaller....
eastender - 13 Dec 2007 14:51 GMT
> The S40 seats are a lot smaller....
And I think our bottoms have got bigger...
E.
Roadie - 11 Dec 2007 13:52 GMT
> > Yup.
> > They do work as designed. Seat heaters are designed to do little more
[quoted text clipped - 8 lines]
> owned before this one or the Honda Accord I currently own. Neither my
> wife nor I find them satisfactory.
I can't tell you much about model-to-model differences. But I don't
know how you could accurately compare the temperature output to a car
that is no longer with you. There are too many variables.
Does both the low and high heat setting work on your car seats?
Chris Mayhew - 11 Dec 2007 14:39 GMT
> know how you could accurately compare the temperature output to a car
> that is no longer with you. There are too many variables.
I can tell you which felt warmer. That's pretty easy to differentiate.
> Does both the low and high heat setting work on your car seats?
Yes. The single light setting is barely noticeable to my bare hand.
The double light setting is noticeable but tepid.
Roadie - 11 Dec 2007 16:55 GMT
> > know how you could accurately compare the temperature output to a car
> > that is no longer with you. There are too many variables.
[quoted text clipped - 5 lines]
> Yes. The single light setting is barely noticeable to my bare hand.
> The double light setting is noticeable but tepid.
They are not designed to be instantaneous hand (or seat) warmers.
They are designed to radiate a certain amount of heat that is held in
by your rear end covering the entire seating area. Heat is trapped
and builds up usually within a minute or two. A more precise if less
sales oriented description would be that they are chill removers.