... 3.High efficient heat exchanger 4.safe and quite FAN COILHeatling capacity :2.15 - 14kW Features:Modeling ... running quiet, Safe, reliable, long-lasting: each coil have been pressure tested out of plumbing (Set head ... and above.High efficiency, energy Foot: Purple coil using seamless steel string sets efficient two-way ... , low , simple operation, easy to use. Fan Coil,cooling fan coil,radiation fan coil