What a delightful little invention! I’m not a mechanical woman, and all I had to do was put on the legs and plug it in! There is 1 button to control heat (with a dial to raise and lower the amount of heat) and one for “flames” (pretty realistic) which you can use without heat.  Perfect for a bedroom, and makes the room very 
cosy. The dogs will love it during the upcoming cold Colorado nights. Very happy with this Wayfair purchase!