HPC 48 Inch Torpedo H-Shape Fire Pit Burner

It may whistle depending on the flex connector and gas pressure used.  HPC gas burners have a Lifetime Warranty on the stainless steel burners themselves for residential and commercial use, which covers manufacturing defects. However, other components have shorter, limited warranties, such as 3 years for electronics and gas valves in residential installations, and 5 years for stainless steel pans and valve boxes in residential setups.