Does it have a backdraft preventer so that air from the outside is blocked from entering through the vent?
1473076
Yes, product details says so. Sure don't have cold air coming down mine! :-)
1473077
I think the vent through our roof has a backdraft preventer, not the heater itself. I have noticed no back draft at all.
2016288
It does have discharge vents at the upper sides. I installed mine with an exterior vent. Seller is located in Gardena ca. .picked mine up there and saved even more.good quality at half the cost of others.
728436
Mine does not have a vent, but plenty of air circulates from underneath, as far as I can tell. I've not seen any problems with this. Perhaps the description listed here belongs to another model?
644551
Does not restrict airflow at all. It only covers the compressor not any part of the fan. It works very well. It cut my compressor noise level in half.
1481421
No. Some models do, but this one must be closed manually. If it is left partially open with the fan on low, rain does not usually get in.
499120
No, it doesn't. It pulls in thru the front & exhausts thru the back. You have to give it space to 'breathe' off of the wall... Still works well though in small bedroom.
1202442
Yes it does. It was a nightmare trying to get it vented outside. It just blows hot air everywhere. I returned it it was just terrible. Having hot flashes in California during the hot spell of the century I ordered this thinking it would be a life saver however my ceiling fan did a better job.
1607512
Yes Mike, it has the hole for the vent tube. It is covered by a rubber gramet . I hope this helped :)
781825
Hi Robert, This is my second one too. Neither of mine had the vent in the back top. They work great.
596404
No. And it leaks air. We returned both that we ordered. Both lost air overnight. Stay away
694927
It has slits on the sides and slits on the bottom piece for ventilation. Air flow isn't an issue with these. I wouldn't worry about that. I still think this is the best deal.
497938
This will block the air flow from a forced air heat vent. They come in different sizes for different size vents. Order one that fits the vent(s) you have. You can purchase a smaller one to block only a partial vent. However, they are not very strong magnetically, so if there is any air pressure at all, it could be ineffective. The more vents you have blocked, the more pressure you have in the system. If you are blocking a lot of vents, it might be better to turn down/off the heater altogether and use an area heater for the area you need the heat. Another solution is to buy an adjustable heat vent that has a lever that you manually adjust the air flow for one vent. Warning of caution though, don't block more than 50% of you vents, this will cause too much pressure and possibly cause a problem blower motor or blow a hole in the the ducting, both of which can cost a lot of money to fix. Even worse, over working the blower motor and backing up the heat in the heater could cause a fire.
610269
No, it's a backdraft for the output side of the fan. You put this in line between the output of the fan and the fixture that you are using to mount to the wall or the roof. This unit ensures that the air flow can only go out and not backdraft into your bathroom.
1753395
No it doesn't block the vents. The cut outs are fine and I haven't really noticed it heating up. It only heats up when I'm watching movies on Netflix.
1329844
No vent, but the cover doesn't fit very tight so steam escapes at very low pressure.
792762
No it doesn't, but the sides and the front with the door are enough. There is ample air flow through it.
103939
If the louvers function properly they will prevent a small amount from entering but I do not think the air is completely blocked from re-entering. Your duct to the dryer should assist with back flow.