Accessories for flue gas extraction and ventilation
Flue pipes and fittings for condensing boilers: the widest range of diameters available on the Italian market, featuring a male-female socket system, EPDM gaskets and H1-certified pressure sealing.
What does it involve?
Our flue gas ducts are designed to operate at low flue gas temperatures, making them ideal for condensing boilers. Constructed using a male-female socket system and EPDM gaskets, they are all tested and certified to H1 pressure resistance (5,000 Pa).
Groppalli boasts the widest range of diameters on the Italian market, covering both single-wall and coaxial systems: Ø 50, 60, 80, 100, 110, 125, 160, 200, 250, 300 and the coaxial sizes 60/100, 80/125 and 100/150.
The condensing range is divided into four main product families:
- Single wall
- Coaxial
- Flexible
- Insulated
What makes it distinctive
- Reliability and partnership: a solid, well-established strategic partner, chosen for many years by the sector’s leading organisations.
- Performance and safety: high pressure resistance, using carefully selected and traceable raw materials.
- Unlimited versatility: from small, individual installations to heating plants of all capacities.
Areas of application
The range is designed for flue gas evacuation from condensing gas boilers and water heaters. Thanks to the comprehensiveness of the range, it offers universal solutions: from individual domestic installations — ducting and coaxial systems — to large-scale heating plants and commercial applications.
The condensing range










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