The name of this series of fireplace inserts suggests that this is a robust fireplace insert that will keep you warm even in the toughest winter. In addition to the durable body, our fireplace inserts have the furnace laid out by a massive layer of special accumulative material Carcon. This material has unsurpassed properties such as its durability and storage capacity, which, for example, is often lacking in the chamotte. Choose our fireplace insert with unmatched performance vs. price and you will be sure that the living fire in the interior will always give you thermal comfort.