Whisper-quiet 2-speed fan; PermaWick filter; auto shut-off when empty
Customer Reviews:
Wonderful Heater 
I have natural gas heat. I wanted somthing to give me a little more heat in certain rooms at night. This is just the best thing available. Buy it!
TOP CHOICE IF INSTANT HEAT ISN’T NEEDED
AN EXTREMELY EFFICIENT HEATER.
Other reviews have covered the appropriate ways to use these little jewels so I won’t go there.
Just wanted to add that the newer, smaller units here do indeed perform better, in my opinion, than the larger units they replaced. And by that I mean in these three areas:
1. warm up quicker thus heat an area quicker
2. put out more heat at comparable wattage settings
3. at least equal, if not better in cost-efficiency
One final point, these are EXCELLENT heaters for those with respiratory problems associated with dry air and/or dusty ductwork. Assuming you don’t need instant heat, this is your best space heater option IMO.
Poor Product 
This product is useful, I guess, if you have a very small enclosed area to heat, as it gives off only a very modest amount of heat even when set as high as it goes. It is not, as advertised, cheap to run. In fact it cost me as much as the gas bill for my entire apartment without reducing that gas bill more than a couple of dollars. It is made on the cheap. The plug doesn’t even have a ground pole. I inadvertently bumped into it one day causing it to pull against the wall plug and fried both the wall plug and the heater’s plug. I haven’t used either since. I’m sorry I wasted my money on this product. I suggest you save yours.
WORTH ITS WEIGHT IN GOLD!
I have central electric heating but(gas pilot), due to chemical sensitivity to the fumes, I use non-odorless heating. I’ve owned this brand for many years without any problem. I still have the one I purchased on line from Sears going on four years old. It has many dents from moving but still safe to use and no leaks.
I highly recommend this product and this brand.
Quiet, but has long time to heat 
Its ok.Quiet.NOt so impressed with its fast heating,takes a bit of time.
I knocked it over accidentally and the heater cut the electric cord right in half! (?)
