Burner

The burner plate housing consists of removable backflow prevention device and a perforated heat plate of ceramic material.

Backflow prevention

Some larger residential applications may benefit from multiple heater installation. Up to two residential units can be common vented together. The backflow preventer will only allow one way passage of mixed air and gas into the burner. And while exhaust gas will flow to the path of least resistance, an idle unit can be the exit path. exhaust cannot pass back through the burner.