Ciao a tutti,
Recentemente ho acquistato un riscaldatore interno DEFA da 1900 W per la mia Nissan Qashqai del 2008. L’ho provato per un breve periodo e ha iniziato a soffiare aria molto calda molto rapidamente.
Non guido spesso quindi potrei pensarci troppo, ma volevo chiederti:
• 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?
Allego anche la foto del parcheggio. Per favore suggeritemi qualche suggerimento.
Grazie in anticipo!
https://www.reddit.com/gallery/1qpatkw
di Lets_Laugh69
12 commenti
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
Yes / no / no.
Last two “no” if you install it correctly in the footwell so it doesn’t blow at the windshield or anything is too close (read the manual!).
The heater is meant to warm up the air in the cabin, so that the car is warm to enter when the heater has been on for a while.
The heater is usually installed in the passenger side footwell, perhaps attached to the center/middle console, pointed 45 degree upwards so that it blows towards the middle of the car. Like in the image here: https://www.motonet.fi/artikkelit/autolampo so that there is nothing immediately in front of the heater but instead lots of empty space for the warm air to circulate and spread inside the cabin.
I am not aware of windshields or other windows cracking because of a heater like this. Some fire risk exists always of course, but only if you for example leave the heater on the seat blowing towards the seat, but used properly it is safe.
The heater does blow hot air, no worries there. If there is a fan at the top of it, it pulls cold air from inside the car to warm up.
The change in temperature is pretty gradual inside the car. so no worries for windshield damage either. If anything, you might find it way easier to scrape ice off your windsheild when it’s warm.
As for fire hazard, generally you don’t have to be concerned. Make sure you point the plastic vent away from the seats, so it will warm the air inside the car instead of warming the seat. I think if you warm the car for two hours on the parking lot, and your heater is pointed towards the seat, that’s where a fire hazard might be a concern.
I personally place the heater on the edge of the passenger side seat, blowing towards the glove compartment. That way the car is nice and warm when I need to drive, and there’s zero risk of anything happening. Good questions, hope this helps!
Wait… your **heater** blows hot air???