Since the ’70 Telea Tecnovision’s system are used to check the boiler’s flame of frontal, front-back and tangential burners. The great experience acquired in this field leads to offer a product based on a consolidated project that, in conjuncion with the quality of the materials employed, such as optical periscopes and scabbards made of special steels, enables to guarantee a certain return of the investment over time. Telea Tecnovision supports the customer offering technical services, maintenance activities and spare parts all over the world, also for systems installed more than 30 years ago.