Signaveris means tailor made. ICL’s Signaveris is a program of continuous innovation. Within this program we set to develop a more durable refractory for combustion systems. We succeeded by adding mechanical strength and flexibility to our design. On top of that we integrated the flange and burner gasket in the refractory. We proudly present the Pioneer® Hybrid. Our revolutionary all-in-one solution, the new standard for condensing boilers.