I have found that the best gel for the alcohol fireplaces(which are getting more popular) is
www.sunsorproducts.com
owned by 2 Burn Inc. Their fuel is not as expensive and it is made from sugar cane (a renewable resource) rather than chemicals like rubbing alcohol like their competitor. We have searched high and low, and they seem the most concerned with safety. they even have a special box behind the log so the cans cannot tip over.