Three pass flue circulation

From 20 to 75 kW

Key features

• Compact and efficient solution for manually loaded boilers
• Suitable for firing wood logs, brown coal, and lignite
• Combustion primary air controlled by thermostatic regulator,  manual adjustment on secondary air
• Cast iron bottom grade
• Scaled thermometer to monitor boiler outlet temperature
• Optional cooling loop for protection against over-heating
• EN303/5 Class3 approval, up to 28 kW for firing with non-woody biomass