Tassu heating cable is a traditional solution for partial heat storing or direct underfloor heating. The cable is strong and it can be fixed direct to the reinforcement mesh of a thick concrete floor. This is an easy and cost efficient installing practice. Heat energy can be stored to concrete when electricity is cheap and the heat transfers to room during the day. Tassu is suitable for different kinds of flooring materials and it is efficient, durable and long lasting. Warranty is 20 years.