Hallo zusammen,
Ich habe kürzlich eine DEFA 1900W-Innenraumheizung für meinen 2008 Nissan Qashqai gekauft. Ich habe es kurz getestet und es fing sehr schnell an, sehr heiße Luft zu blasen.
Da ich nicht oft Auto fahre, denke ich vielleicht zu viel darüber nach, aber ich wollte fragen:
• Is this level of heat output normal for a 1900W DEFA heater?
• Can it cause any damage to the windshield because of sudden temperature difference?
• Is there any real fire risk inside the car?
Ich füge auch das Parkbild bei. Bitte machen Sie mir einige Vorschläge.
Dank im Voraus!
https://www.reddit.com/gallery/1qpatkw
Von Lets_Laugh69
8 Kommentare
The heater is supposed to blow hot air, that’s normal. Otherwise the car won’t warm up properly in winter. Your device has two settings, the second setting (II) you can use when the weather is particularly cold.
There is no risk to the windshield from this. The risk of fire is only real if there are things in front of or attached to the fan that could burn. The plastic parts of the car can withstand hot air from these.
However, please note that the fan must be attached to the car, meaning it should not be left on the seat or floor. It was a little unclear from the pictures whether you have the fan attached to the footwell wall, as it should be.
You don’t want to attach any car heater to blow directly onto the windshield from close range. The car heater is usually located in the passenger side footwell.
Just install it in a correct orientation and it will be just fine. Check if there’s a maximum amount of Wattage you are allowed to use from that outlet and set the mode accordingly. I have the same model
Also note that normally the outlet has a timer to shut this heater down after max 2h of work
Follow the proper installation instructions and you should have no problems:
[Page 37 here for cabin heater installation](https://www.defa.com/content/uploads/Documentation/Downloads/Technical-information/Electrical-preheating/Technical-Handbook-EN.pdf)
1,9kW might be a problem if you live in apartment complex where the heater poles and wiring is old. They are usually rated something like ~800W per car.
So I have only 900W heater + engine heater and all my neighbors on same pole group use heating different times than I do. They commute around 6-8, I leave at 9-10. So we have not had problems, but if we all plugged in our cars sametime the automatic fuse would pop in the electricity distribution room, which we cannot access. Maintenance and chairman of the housing companys board has keys there.
Other than that its fine as long as you do not place it near windscreen. Put it into passenger side floor.
Use the bracket and install it front passenger footwell just like the manual says. If it is correctly installed fire risk inside the car is minimal. If you heat windshield directly with heater it might damage it.
1900W heater started blowing very hot air very quickly? No shit.
Do you know what else might have the power of 1900W? Your kitchen furnace/oven. But your car is larger, generally lives outdoors and lacks the insulation of an oven. And like your oven, it has a thermostat so it won’t be melting iron.
For the questions directly:
Yes, a 1900W heater does blow heat with the power of 1,9kW at -25c, as it states. Turns out heating a cold car in sensible amount of time requires some power.
Yes, it can damage the wind screen if you blow the hot air directly to it. But why would you? The installation spot is generally next to the feet of the passenger and you *really* should install it according to the manual.
Any heater carries a risk. Most risks are related to an improper installation or faulty unit though. As long as you don’t do anything stupid with the firing or submerge your unit in salt water, it should be fine