Frozen windscreen

Dec 11, 2005 50 Replies

Has anyone had experience with the Kenlowe Hotstart?

It appears that the pre-heating of the coolant can also provide a quicker acting and more effective windscreen demister, aside from its main function of warming the engine.

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just made a phone inquiry (0162 882 3303) to its Maidenhead office.The unit (H43085 for small cars; size of a can of Coke) costs £234.77inclusive of delivery charges and VAT.

Im pleased that I put this question.got you all thinking ;-)

In message , Guy King writes

We're talking first thing in the morning here...

The webasto heater I had fitted cost me £850 all in including remote control unit

In news:op.s1muw5qr4wom51@amy, Duncanwood scribed for want of a better word:

Oh I have twice, ten years apart though but twice and it was the same guy, so I just scrape mine now I find de-icer clears the outside but somehow freezes the inside? so just use a plastic card

: (The windscreen was probably a laminated one though..are these : stronger than modern day toughened ones?)

Toughening puts the surfaces of the screen in compression, so I'd expect them to be even less susceptible to thermal shock from boiling water.

Ian

: Bimey - I've seen a price of $1800 on a US website for a webasto parking : heater (not sure if the same model).

A friend of my swears by his Kenlowe engine preheater: it's an electric heating element and pump, plumbed into the cooling circuit. He has it on a timeswitch for about 30 minutes before he leaves, so the heater works as soon as he goes. On icy days he switches on the heater fan by hand - hasn't got round to a timeswitch for that yet ...

Ian :

The message from "Domestos" contains these words:

Deicers work by lowering the freezing point of the ice. Going from ice to liquid takes considerable energy - deicer makes the screen a lot colder than it was before - just not quite cold enough to freeze the water/deicer mix on the outside but plenty cold to freeze any water on the inside.

Cold water seems to be plenty warm enough... thinking about the temperature difference (cleaning the car with warm water during the summer, compared with de-icing windscreens in the winter) lukewarm water should be about right....

In news: snipped-for-privacy@zetnet.co.uk, Guy King scribed for want of a better word:

Cheers, got that I will stick with my bit of plastic gets me warm anyway a little exercise before driving off

In news:dnklsj$oi1$ snipped-for-privacy@nwrdmz01.dmz.ncs.ea.ibs-infra.bt.com, tab scribed for want of a better word:

Got me thinking and I got a result I realised my central heating vent is on the wall alongside the drive I just park further back so my screen is level with the vent, the central heating comes on half an hour before we rise, then have breakfast wander out and the screen is clear voila Thanks for the brain exercise

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