The Warmflow Agentis Internal Pumped 21-27kW Oil Boiler is supplied with a factory-fitted Grundfos UPM3 flex pump, an auto air vent, and a 3 bar safety valve. Its high-efficiency, patented heat exchanger and Riello low NOx technology are housed in a stylish white casing, making it ideal for kitchen or utility room placement. This ERP A rated boiler provides a convenient, pre-plumbed solution for medium-sized homes, ensuring reliable performance and ease of installation.