Burner Insulation Rigid Formed Donuts With Hole for Burner

Ridgid burner insulation donuts and discs are refractory-grade ceramic Kaowool formed

Disks retains heat inside coil for better fuel efficiency and paint protection.

Donut Models Available (with hole):

• 8.704-810.0 - Donut, 16" diameter
• 8.704-807.0 - Donut, 18" diameter
• 8.717-474.0 - Donut, 24" diameter