Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Potentially Dangerous

The heater arrived quickly, was easy to set up and install, and was pumping out mostly-warm air within seconds. Less than 3 minutes after plugging it in and turning the heater function on, my 12v outlet began smoking and the heater died, causing me to pull over and remove it before things got worse. Mechanic determined that the heater was drawing far more power than the average 12v socket can handle. The heater itself is cheap, but the $80 bill to have my cigarette lighter replaced was not worth the cost. Returning the item immediately.