I don't have one but must say ANY fireplace in the house sounds heavenly right about now! I'm freezing here!!!!!
We have gas logs in our house..not sure if that's the same thing as what you're talking about..but I love them..they easily warm our entire downstairs during the winter and I rarely run the central heat during the day when they are on. We just filled our tank this week at 1.67 a gallon which was down nearly a dollar from last year.