Heating Quickly and directly find documentation on system components for heating circuits, solid fuel boiler groups and flat stations Tuxhorn » Product information » Heating Product portfolio Heating circuit Heating circuit >>> Compact pump groups for mixed and unmixed heating circuits with large kvs values for high heating capacities Product portfolio Boiler circuit Boiler circuit >>> Boiler circuit groups with thrm. and elect. mixing valves for return temp. maintenance of solid fuel boilers Product portfolio Flat station Flat station >>> Thermally controlled flat stations with extensive basic equipment for unmixed and mixed heating circuits