Lambda probe insulation

for the following pellet boilers:

• Biotech TopLight, TopLight-M, PZ8RL (13.5 and 14.5 kW), PZ15RL, PZ25RL, PZ32/35RL.

• Buderus Logano SP161, SP161-15,SP261-15, SP261-25, SP261-32, SP261-35
• Wolf pellet boiler BPH 10, BPH 15, BPH 25, BPH 35
• Junkers pellet boilers SUPRAPELLETS KRP2-9 Top, KRP2-15 M Top KRP2-15 M TopMBW, KRP2-15 PZ, KRP2-25 PZ, KRP2-32 PZ, KRP2-35 PZ