Both my son (very mechanically inclined) & my husband (mechanical engineer) could not get this heater to work.  Both read directions carefully.  Son got it to light (VERY noisy), but it wouldn't say on.  Husband can't even get it to light.  Based on the majority of positive reviews on this heater, I'm assuming we got a defective one.  Haven't called Wayfair yet for return, but disappointments like this is the very reason I shop at Wayfair.  I trust I won't be stuck with this heater, and that Wayfair will make it right when I phone them.