"◇ Nine strong fire chambers on the left and right, efficient energy gathering. ◇ Single-line thermocouple protection device, safe and reliable. ◇ Tempered black frosted double-layer explosion-proof glass. ◇ Upward air intake design, more thorough combustion, higher thermal efficiency. ◇ High-pressure pulse ignition with a 100% ignition rate. Nine-gun strong fire distributor. ◇ Suitable for natural gas version/liquefied gas version."