Had this little heater for over 8 years. Bought to use in our pop up trailer in winter. When got a large travel trailer, probably 250 sq ft of open space, this heater keeps on chugging. I never had to use the high fan setting and keep heat setting about a quarter of the button. In 30 deg weather keeps the trailer above 50 deg all night long. Never gets too hot to touch and the cord never got either. I will but again.