This is the biggest piece of junk. DO NOT BUY THIS! It doesn’t go flush against the wall. There is a vent on the top that cannot be covered. We framed a spot in our wall for this, realized we couldn’t cover that vent on the top. So we decided to install it anyway and just not use the heat part of it. It was installed for a week and now it doesn’t even turn on. It just glitches and turns off.  We pulled it out and tried a bunch of outlets and the thing is broken. 
It’s such a disappointment. Save your money. It’s seriously JUNK!