Complete commercial heating system assembly available for sale, comprising a Remeha B.V. ECO Type 14-1 condensing economiser unit (serial number 2003Z31416658, manufactured 2003) paired with associated pipework, controls, and circulation equipment. The Remeha ECO unit is rated for a nominal boiler load of 345–603 kW (upper calorific value) with an ECO nominal output of 17–25 kW. Maximum water temperature is 95°C, maximum water pressure 6 bar, and maximum flue gas temperature 275°C. Fuel type is natural gas (Aardgas). The unit is insulated with mineral wool and housed in a steel frame enclosure with removable panels for maintenance access. A condensate drain assembly is visible at the base. The pipework assembly includes a Siemens Landis & Staefa SKD32 electric valve actuator (asset tagged 112644) mounted on a flanged Siemens control valve, and a Wilo circulating pump (asset tagged 112640) with teal motor housing, both in apparently good working condition. Additional components visible include a red expansion vessel, pressure gauge, and various flanged pipe connections with insulated pipework. Ideal for building contractors, heating engineers, or industrial facility managers seeking cost-effective heating infrastructure. Total there are 4 of these boiler installations are available.