The heat output in this regard is good. It's thermostatically controlled so it can be adjusted and will do its thing or all the way up. Blows hot air out from the bottom to keep it cool and tactile in all directions. Like you can turn off the heat and just watch the "fire". You open the door, the controls are on the right. With a maximum power of 1500 watts, you can also save power by not having to keep it on all the time. Of course, the larger the area, the longer it will take. Or if the door is open and the freezing outside takes time to recover. Overall a nice little "fireplace".