Best car heater....to clear windscreen
in [Car Maintenance]
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From: Usenet Nutter on 7 Jan 2010 14:41 On Thu, 07 Jan 2010 18:28:44 GMT, "Mrcheerful" <nbkm57(a)hotmail.co.uk> wrote: d > >One of the parts of my service schedule is to check the engine fan operates, >this is often quite difficult to get going on modern diesels, unless the day >is really hot the fan won't come in even when left idling for half an hour >or so after a run. > At one time some folk put a piece of card in front of part of the rad to get it to heat up more quickly ....Is that still done or is it not recommended ....even in this weather ?
From: Mrcheerful on 7 Jan 2010 15:29 Usenet Nutter wrote: > On Thu, 07 Jan 2010 18:28:44 GMT, "Mrcheerful" <nbkm57(a)hotmail.co.uk> > wrote: > d >> >> One of the parts of my service schedule is to check the engine fan >> operates, this is often quite difficult to get going on modern >> diesels, unless the day is really hot the fan won't come in even >> when left idling for half an hour or so after a run. >> > > At one time some folk put a piece of card in front of part of the rad > to get it to heat up more quickly ....Is that still done or is it not > recommended ....even in this weather ? I see about one car a year doing that nowadays, might be more common in very rural areas. In general cars are so much more well designed in cooling and heating areas that it is not really necessary any more.
From: Duncan Wood on 7 Jan 2010 16:08 On Thu, 07 Jan 2010 18:43:00 -0000, Tom <tom(a)tom.tom> wrote: > On Thu, 07 Jan 2010 01:56:15 -0000, "Duncan Wood" > <nntptmp(a)dmx512.co.uk> wrote: > >> On Thu, 07 Jan 2010 00:11:08 -0000, Richard Crewe >> <richardSOCKS.crewe(a)sniff-thetrousers.demon.co.uk> wrote: >> >>> On 06/01/10 16:49, Tony (UncleFista) wrote: >>> ------8<-- snip snip --8<----- >>>> >>>> It's possible to buy small 12v screen demisters, a bit like >>>> hairdryers, >>>> to clear kitcar windscreens (with no heater). >>>> Available from kit car bits suppliers, dunno whether they're any good >>>> though :) >>>> >>>> Like this; >>>> http://www.cbsonline.co.uk/electric-demist-heater--demst-309-p.asp >>>> >>> >>> I have a pair of 12V hair-dryers on my kit-car, they are pretty much >>> useless for demisting in an open top car and are only there to meet SVA >>> regulations. They may be better in an enclosed space though, but I >>> can't >>> imagine how they could practically be used to dry any amount of hair. >>> >>> My tip for defrosting an icy windscreen is to use _lukewarm_ salty >>> water. This melts the ice and warms the screen enough to reduce >>> misting. >>> The salt prevents it freezing on the screen and on the ground where it >>> eventually drains. There's the risk that if the water's too hot, the >>> thermal shock will crack the screen. >>> >>> -- >>> Rich >>> >> >> It's a pretty minor risk though or driving through puddles in the summer >> would shatter your windscreen. > > It's the sudden difference in temperature that cracks glass, i.e. from > freezing to very hot instantly. Driving through a puddle in the summer > is by no means a fair comparison. It's an exactly similar comparison, 0deg to 30 deg & 40C to 10C are essentially the same, only Autoglasses advertising would scare you into thinking otherwise. Fords fastclear screens would be shattering continuously if it was a significant issue. -- Duncan Wood
From: Duncan Wood on 7 Jan 2010 16:10 On Thu, 07 Jan 2010 18:28:44 -0000, Mrcheerful <nbkm57(a)hotmail.co.uk> wrote: > Adrian wrote: >> "Mrcheerful" <nbkm57(a)hotmail.co.uk> gurgled happily, sounding much >> like they were saying: >> >>>>> The newer the vehicle the quicker it will defrost >> >>>> Not necessarily. >> >>> the amount of water in the heads of newer engines has been reduced >>> to improve the warm up time of the engine so that emissions are >>> reduced, so 'in general' the newer the vehicle the quicker the >>> heater gets hot. >> >> OTOH, greater efficiency - especially with common-rail diesels - >> reduces the amount of heat getting to the coolant, which is why a lot >> of common- rail diesels have auxiliary fuel-burning heaters for the >> cabin. > > which is why I said that petrols warm quicker than diesels. > > One of the parts of my service schedule is to check the engine fan > operates, > this is often quite difficult to get going on modern diesels, unless the > day > is really hot the fan won't come in even when left idling for half an > hour > or so after a run. > > Auxilary heated diesels are even quicker though. When they work :-) -- Duncan Wood
From: Duncan Wood on 7 Jan 2010 16:26
On Thu, 07 Jan 2010 19:41:17 -0000, Usenet Nutter <individualnet(a)takeoutmyteethgmail.com> wrote: > On Thu, 07 Jan 2010 18:28:44 GMT, "Mrcheerful" <nbkm57(a)hotmail.co.uk> > wrote: > d >> >> One of the parts of my service schedule is to check the engine fan >> operates, >> this is often quite difficult to get going on modern diesels, unless >> the day >> is really hot the fan won't come in even when left idling for half an >> hour >> or so after a run. >> > > At one time some folk put a piece of card in front of part of the rad > to get it to heat up more quickly ....Is that still done or is it not > recommended ....even in this weather ? Thermostats have impoved in the last 40 years :-) -- Duncan Wood |