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Defrosting Car Windows

  • 22-11-2021 10:53pm
    #1
    Registered Users Posts: 313 ✭✭ JimmyCorkhill
    Registered User


    Hi, what is the best approach to defrost the car windows with the frosty weather on its way.

    Is luke warm water a no no?

    Some form of shop bought de-icer? Or a home made version?

    Thanks



«1

Comments

  • Registered Users Posts: 7,294 ✭✭✭ the_pen_turner
    Registered User


    luke warm water is fine. wont do any harm. its boiling hot water that will crack the window.



  • Registered Users Posts: 25,883 ✭✭✭✭ HeidiHeidi
    Registered User


    Lukewarm water, with the wipers on straight away so it doesn't just freeze again.



  • Registered Users Posts: 21,345 ✭✭✭✭ Esel
    Not your ornery onager




  • Registered Users Posts: 1,297 ✭✭✭ beachhead
    Registered User


    Lukewarm water followed by de-icer if it doesn't clear or freezes as you drive away.



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  • Registered Users Posts: 19,789 ✭✭✭✭ Akrasia
    Registered User


    Luke warm water won't crack your window, but if the temperature is below zero, it could pool on the ground and cause a slip hazard when it freezes. Not a big deal if it's your own driveway, but I almost broke my neck on some black ice because somebody defrosted their windows when they were parked on a kerb one year



  • Registered Users Posts: 5,415 ✭✭✭ jmreire


    Just be carefull when turning on the wipers that they are not stuck to the glass....I always use a de-icer, followed by a scraper to remove the ice first.



  • Registered Users Posts: 68,319 ✭✭✭✭ seamus
    Dental Plan!


    In all my years I've never heard of hot water cracking a windscreen, but I have heard it continually repeated that it shouldn't be done. I wonder is this an archaic piece of advice from when windscreens weren't tempered, or does it only happen if there's already a crack/chip in the windscreen?

    Obviously boiling water straight from the kettle is playing with fire, but surely hot water from the tap (~50 degrees) would is OK?



  • Registered Users Posts: 13,900 ✭✭✭✭ Cuddlesworth
    Registered User


    I'm pretty sure the glass cracking/hot water thing is thermal shock causing pre-existing damage to worsen, like a tiny chip/crack suddenly spreading fast. I don't really see much damage these days on windscreens to begin with, I'd assume that's because of advancements in glass/car/roads over the years.



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  • Registered Users Posts: 20,919 ✭✭✭✭ phog
    Registered User


    Cold water, pour over the windscreen and then at the wipers, once wipers are defrosted lift them out of position and place them back into position. Ideally wait for all ice to be removed before switching on wipers so the rubber isn't damaged.


    As already mentioned, try not let the water flow onto a pavement so that it would be a trip hazard to pedestrians.



  • Registered Users Posts: 5,555 ✭✭✭ TheBody
    Registered User


    I cracked my windscreen pouring a jug of cold tap water on my windscreen. Probably bad luck, but since then, I use a ice scraper and de-icer.



  • Registered Users Posts: 19,789 ✭✭✭✭ Akrasia
    Registered User


    I just used my work ID to scrape the frost off, worked great, and they'll replace it for free when it mysteriously stops working to open the doors every few weeks



  • Registered Users Posts: 24 Ryertex
    Registered User


    I’m my experience, using lukewarm water and immediately turning on the wipers works fine for the windscreen but not so good for the side windows as it freezes again. Also creates a bit of a skating rink on the ground. Idling the engine is bad for your pocket, your engine and the environment. Now I have a small electric heater with a long lead which I can plug into an external socket outside the kitchen window. Turn it on while I’m having breakfast and within 10 minutes all windows are clear + the inside of the car is nice and warm.



  • Registered Users Posts: 25 TheCrank
    Registered User


    Just cover the windscreen at night. €6 for a Halfords cover or use a big lump of cardboard or a bit of old carpet, anything that will sit on the screen really.



  • Registered Users Posts: 5,418 ✭✭✭ Wheety
    Registered User


    Warm water in a ziplock/sandwich bag. Just start at the top, put the bag on the window and slowly drag it down the window.

    At least you won't have the problem of it pooling and freezing on the ground.



  • Registered Users Posts: 6,174 ✭✭✭ marklazarcovic
    Registered User


    Sandwich bag of hot water,rub on glass,works



  • Registered Users Posts: 6,464 ✭✭✭ h3000
    Registered User


    Slightly off topic but I always try to remember to turn off my automatic wipers in freezing weather. It can't be good for the motor or the wiper blades if they are frozen to the screen.

    0118 999 881 999 119 725 3



  • Registered Users Posts: 547 ✭✭✭ Blue4u


    Someone told me before to not sue the spray stuff on the window, it ends up puttin a coat of whatever is in it and makes the windows really dirty



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  • Registered Users Posts: 84 ✭✭ Maggie Benson
    Registered User


    The stink off those spray de-icers is really awful or maybe I just chose badly!



  • Registered Users Posts: 2,246 ✭✭✭ Buffman
    Registered User


    +1 on this, I used to use an old duvet and it works fine. My current car has preheat and defrosts itself at the set time.



  • Registered Users Posts: 18,052 ✭✭✭✭ Del2005
    Registered User


    You need to be able to see out the side windows also. Also not practical if you've light fingered neighbours, I'd hub caps robbed from a 10 year old car after I forgot to cable tie them back on after the NCT. If your at home a bit of warm water will clear all your windows in seconds, if your out a windscreen cover and ice scrapper for the side windows.

    Can't remember where I saw it but IIRC if you use alcohol deicer then you're supposed to rinse the window with water to protect your seals, so just skip the booze and go straight to the water. Why are people using CD cases or work badges when ice scrappers are only a few Euro and regularly on sale?



  • Registered Users Posts: 1,251 ✭✭✭ JustJoe7240
    Registered User




  • Registered Users Posts: 21,878 ✭✭✭✭ endacl
    Registered User


    Feck's sake. Even if it worked like, really really well, it would be handier and quicker to just sit in the car waiting for it to heat up. Where do people get these daft ideas...



  • Registered Users Posts: 18,052 ✭✭✭✭ Del2005
    Registered User


    It's a car you're defrosting it's not like they are lacking in storage options. How hard is it to throw an ice scrapper in the boot, door card, glove box?

    I've got a Winter bag I throw in the boot around this time of year. It's got ice scrappers, deicer spray, cable tie snow grips, a few sacks and some ropes. But then again feck all people have sunglasses in their cars and are driving blind around dusk/dawn this time of year



  • Posts: 0 ✭✭✭✭ Kash Eager Selenium
    Registered User


    I just leave the car running for 5 minutes. It's going the same distance and needs to heat up anyway so really it's 2 minutes extra running each time. Let's high-ball and call it 50 times a year so about100 minutes of extra running per year. That's fine by me and I think my pocket can handle it.



  • Registered Users Posts: 20,103 ✭✭✭✭ Larbre34
    Registered User


    Idling the engine for 5 to 10 mins is literally a negligible use of fuel.

    Its also to be recommended, because if your blower isn't up to temp before you set off, your screen can instantly refreeze with a thin layer of ice or condensation and thats not great.

    Another key point for winter is don't run the blower if theres any snow on the air intakes, it can burn out your fan motor, just clear them first

    Best thing I ever put in the boot for the winter is a cheap dust pan and brush. It works as a shovel and a scraper and the brush is great for clearing air intakes and for any heavy snow accumulation on the roof, windows, headlights and grilles.



  • Registered Users Posts: 21,878 ✭✭✭✭ endacl
    Registered User


    ^^^

    Sense.



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  • Registered Users Posts: 24,314 ✭✭✭✭ Cookie_Monster
    Registered User


    Park it in the garage, the issue then doesn't arise :D



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