The Vaillant ecoFIT Pure 18kW Regular is a high-efficiency condensing regular boiler for medium-sized homes with up to 12 radiators, suited for traditional systems with a hot water cylinder and cold water tank. With an A-rated efficiency of up to 94%, its compact size (700x390x295mm) and Quiet Mark certification ensure quiet, space-saving installation. It features a high-spec aluminium heat exchanger and flexible flue options, supports vSMART app controls, and is compatible with natural gas/LPG. Fully recyclable, it offers a 2-year warranty, extendable to 7-10 years with a Vaillant Advance installer.