Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Nice Idea but it needs some improvement.

These logs are ok but do not heat as well as Duraflame or Presto Logs. They are a little bit cheaper to buy but you have to really burn 2 or more logs to generate adequate heat. This product also creates LOTS of ash. They do light easily and are an ideal log for nights that are not too cold.