I have a medium sized, red brick masonry fireplace in a vacation home that I would like to use for visual effect on cool summer/fall nights, not necessarily heat. The problem is I have no place to store firewood. I'm looking for an alternative such as duraflame logs, bioblocks or pellet cages, etc. My hope is to get the longest burning fire and not cause any damage to my fireplace. Any ideas on what might be my best alternative? Thanks