Chimney 40X40
The 40×40 cm central heating chimney is a classic and functional structure used to discharge combustion gases from a central heating boiler, usually fueled by oil, pellets or wood.
What is a 40×40 central heating chimney?
A chimney measuring 40×40 cm (width x depth) usually built with precast concrete blocks, solid bricks or refractory materials, which is connected to:
• The central heating boiler (e.g. pellets, wood, oil)
• The ventilation and smoke exhaust system
Chimney KB 2
2-hole chimneys are structures built with two separate flues, serving different functions or to separate the air and smoke flows. This type of chimney is often used in:
• Private homes with more than one heat source
• Residential buildings with two units (two apartments sharing the same chimney
• Buildings with separate stoves or fireplaces
Chimney KB3
A 3-hole chimney is a construction system that includes three separate smoke channels (flues) within a single chimney structure.
When a 3-hole chimney is needed
• In homes with more than 2 heat sources (stove, fireplace, boiler, etc.)
• When different functions are used: one for the stove, one for the water heater and one for ventilation
• In cases where backup or zone separation is required