Used it for the first time in Dec 2018. We have a fire maybe once a week, not to heat the house just to be cozy.  After a few uses it started melting in the middle. By the tenth use it had sagged about 6” and one of the supports had cracked. After a few more uses the middle broke through. After a couple more the whole back had cracked in half. This didn’t make it through one season. The one I owned before got 20years of use out of it!  I want a refund