b!klimax+ Quadrotto is a ceiling heating and cooling system, consisting in 6-mm PB pipes with oxygen barrier fixed on metal or plasterboard tiles. These active panels are available with polystyrene or rockwool insulation, they make for fast and easy installation, and they can be removed for inspection and maintenance operations, even while the system is working. Thanks to their low inertness, high thermal output, and ability to ensure healthy environment, b!klimax+ Quadrotto represents the ideal solution for commercial applications and hospitals, where it is important to maintain comfortable conditions all year round.