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Condensation

Hello,

in cold Sweden we have condensation issues. When the car comes out of heated garage the glass condenses quite quickly, when the glass gets cold, but the inside of the car is warm.

Any way to have just a little fan going, to keep the windshield clean, without having to have the rest of heating/cooling on, since that (oh, here he goes again) drains the Battery? Now I have to turn on high-speed fan for a few seconds to Clean the windshield, then off, then...

And, while I am at it, why does it take so extremely long, before the heating starts to actually heat? I mean, if set to 72 F, it takes about 8 miles of driving, before any heat is produced. By that time it sometimes doesn't matter, since I already am at the office...

Will be Interesting to see how the Tesla will perform in Scandinavian winter climate. I will follow your threads here Robert. Always informative to read your posts!

Why not preheat the car with the app while plugged in? Oh, I forgot - no smartphone. Perhaps another reason to get one?

But I can actually go down to the basement prior to departure and do something manually (and call the stairs my daily work-out), but I don't at all see how that answers my question about condensation, which occurs, when the cooled-down windshield meets the heated air inside the car (the car IS heated, since it stands in a heated garage).

Oh, stupid me, of course I should preheat the weather outside with my new smartphone. Sorry, I didn't think of that. Arrrrgghhh.

@robert, Not to state something that you already know but I bet the ICE you have probably doesn't start throwing heat much sooner.

But to answer your question I believe the heat in the S is resistive (I could be wrong) and as such it does take a bit to get it warm enough to throw heat. My guess is that Tesla didn't oversize them so they would heat up faster to avoid excessive draw off the batteries.

And once again we find a reason to have all the worlds knowledge in the palm of your hand.

Or

At least the ability to preheat the car and it's systems, while it is plugged in and not drawing battery power, without needing to go to the car.

I could never preheat or precool my ICE cars because they were parked in a garage attached to the house. One of the best parts of EV is that you can operate them remote control and precondition them, with no range loss, while they are plugged in. If you preheat the system while you are plugged in there will be no 8 mile delay waiting for it to warm up. It will be warm when you pull out.

Just set the car interior temp to 85 on your smart phone and finish brushing your teeth, all will be good when you set out to experience the Northern Lights in your Tesla.

I can get condensation by leaving the car outside overnight or by breathing on the windshield, but I've never seen that on a car that has an already-warmed windshield (relative warmth of an unheated garage).

If you only have to drive 8 miles, it's probably not worth it to worry about power use from the heater.

If your car doesn't warm quickly enough, turn up the temperature and speed up the fan. That should help. And don't worry so much about the energy use.

@robert@bis.se - use the heated seat function instead. It works wonders to keep your bum and back warm immediately. It would diminish the needs for running the cabin heat for the car (which is inefficient use for a single person). That means saving battery life as well.

Robert, I have the opposite problem. I live in Arizona and have an air conditioned garage ( solar powered ).

I still kick on the AC using the iPhone app so the car is preconditioned and interior cooled while it is plugged in. When I drive into the 120 degree heat the car is not smoking the batteries to catch up with the heat. The interior and all the systems are at operating temp using plug power rather than battery power.

Then when I get out of the car for short stops I leave the systems running using the iPhone app. Wastes a little battery but is a wonderful capability that only a battery car can effectively provide. I hope Tesla offers a leave on and lock option someday. For now you have to have a smart phone to turn it back on after you exit the car and lock it.

But, PLEASE, dear all, can't you read the title? I am NOT complaining about the heat in the car [even though it takes a very long time to start working, and much longer than in ANY ICE car (because the ICE motor starts generating heat immediately)].

I want to know what to do about condensation on the inside of the windshield, a condensation that comes BECAUSE the car is pre-heated and the outer temperature isn't. To date, there are only 2 possibilities:

1) I don't preheat the car, i.e. let it stand outside during the night. And I don't turn on the heat. No problem. No condensation. But during Winter other problems will come instead, like iced windows. Or
2) I have fan on full blast, which is noisy and... cannot be done without the heating on, which creates more condensation, well, you get the drift.

I'd LIKE to be able to turn on the fan, without heating. That's standard in all ICE cars. My question, in all simplicity, was: can one?

I go to the heater controls, just above the climate on off button, and turn off the auto settings then I just select fan speed, and select defrost and adjust the temp setting down & it blows cool air on windshield. I am on release 4.5.

Finally!

Thank you. Will try that tomorrow. I just pushed the defrost to the left of the Climate on/off, and then, of course, the Climate Control w0ent on.

Best and thanks again - Robert

You can also try forcing the air conditioning on to reduce the internal humidity.

Allen

You can speed up or slow down your fan from your right hand scroll wheel too.


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