The RT-18 VETRO OM controller is the most efficient power optimizer to operate "air" stove inserts and stove-fitting furnaces, operating in gravitational heat distribution systems, cooperating with the DGP installation, or supplying small storage masses - especially in the so-called warm buildings. The controller software also allows you to operate the water system, but then you need to purchase additional dedicated water sensors (RT-18 VERTO OM / GX - available in the set). This controller provides support for external devices, such as: a ventilation device, a recuperator, a chimney fan or an flsp drive of storage mass. In this model, it is possible to use a door sensor! The model is offered only with a SEALED damper !!!