Excellent heat output, Exactly what I wanted. The only drawback is the return process should you need it. The process is not great, however, it was returned to us very quickly (we were told it could take up to 3 weeks! but it was actually sent back in 3 / 4 days)I feel most other companies would process the return and send another unit rather than this method of returning, waiting for fix and then having the item returned to you. I don't think this is a fair process considering it should have arrived in working order in the first place. In saying that I still bought another one because I was so impressed with these little fires! Second one arrived with no issues. Review of Manhattan log effect fire. Dropped one star for returns process because I think it's ridiculous. Don't dump the box until you know the unit works properly as you will need this for the return!!!