The first fireplace did not have flame on one side Wayfair was great at getting out a new one right away - the second fireplace arrived and flames are fine but this replacement unit is noisy when you have flames on ( no heat on ) - sounds like whatever is rotating in the mechanism is not operating smoothly- I have decided to live with the noise rather than return it again... but I would not recommend this brand - I do not feel it is a quality product - I paid around $600.00 and expected better quality, very disappointed  - look at a different brand .