Absolute garbage. Nothing but trouble. Installed Regency Hampton HI500 in the fall of 2021. Catalytic turned into a pile of dust after one season. Replaced under warranty, but had to pay $160 for shipping and installation. The door latch does not work properly because the catch pin is made of soft metal and it gets worn and ground down quickly, making it difficult to close the door. $160 + labor to replace the door catch. After season 2, the catalytic burned through again and needs replacement. To top it all off, now the welds developed cracks in the corners of the chamber and the entire insert needs to be replaced, under warranty but for $500 labor installation cost. Was told by a technician not to burn and wait for replacement, which will take weeks. It is winter in New England now and this $4,500 piece of junk can't be used.