Crown Boiler CR-48101 Ceramic Millboard Insulation

Product Description

The Crown Boiler CR-48101 is a ceramic millboard insulation panel used in high-temperature boiler and combustion equipment applications. Ceramic millboard is a rigid, refractory-grade insulating board engineered to withstand extreme heat inside fireboxes, combustion chambers, and flue passages. It provides thermal resistance that reduces heat loss through boiler walls and protects surrounding structure from radiant heat. HVAC technicians and boiler service professionals install this panel during routine combustion chamber rebuilds and preventive maintenance on residential and light-commercial heating systems.

This panel measures 0.5 inches thick by 24 inches wide by 36 inches long. It is suited for use in gas-fired and oil-fired boiler combustion chambers where refractory insulation has cracked, spalled, or worn through. Boiler technicians use ceramic millboard as a replacement lining material to restore proper combustion geometry and thermal performance. Its rigid form allows it to be cut to fit irregular chamber shapes using standard hand tools.

Key Features

• Rigid ceramic millboard construction rated for high-temperature refractory applications
• Panel dimensions of 0.5 inches x 24 inches x 36 inches allow coverage of large combustion chamber surfaces
• Can be scored and snapped or cut with a utility knife or saw for custom fitting
• Provides thermal insulation to reduce standby heat loss and protect boiler shell components
• OEM-style replacement format for Crown Boiler combustion chamber service

Compatibility

Designed as an OEM-style replacement ceramic millboard insulation panel for Crown Boiler combustion chamber applications.

Installation Notes

Installation is performed by a licensed HVAC technician or qualified boiler service professional. The boiler must be shut down, allowed to cool completely, and isolated from fuel supply before any combustion chamber work begins. Follow local codes and the boiler manufacturer service documentation when removing old refractory material and fitting replacement panels. Wear appropriate respiratory protection when cutting or handling ceramic fiber and millboard materials.

Technical Specifications

• Material: Ceramic millboard
• Thickness: 0.5 inches
• Width: 24 inches
• Length: 36 inches

Standard Information

• Brand: Crown Boiler
• Manufacturer Part Number: CR-48101