- Weatherproof, Water-Resistant Casing
- Heat Treated Darkened Aluminized Steel Tubes
- Removable Side-Access Panels on Both Sides of the Burner Box
- Permanently-Lubricated Combustion Blower Motor
- Flame Sensor and Igniter Mounted Externally to the Combustion Chamber
- Flame Observation Window on Underside of Combustion Chamber
- Four Trial Separate Flame Sensor