Tank:

• Material: Steel plate quality USD37.2
• Welds: By robot in an inert gas environment
• Cleaning: Grit blasting at 6 points
• Internal coating: Enamelled (glass) baked at 860° C in BL models
• Pmax operation: 6 bar
• Pmax test: 15 bar for 5 minutes
• Tmax operation: 95° C

Enclosure:

• Material: PVC faux leather in various colors

Heat exchanger:

• Type: Permanent coil from steel pipe with 33mm cross-section (tube)

Insulation:

• Material: Polyurethane without CFC & FCKW
• Density: 40 kg/m3
• Thickness: 50-65 mm
• In boilers BL800 – BL1000 in all models the insulation is from flexible polyurethane 75mm which is removable for easier access in narrow passages.