Worcester Bosch Greenstar 2000 25kW combi boiler for £2,049.99 at Costco

The Greenstar 2000 is a wall-hung combination boiler that provides central heating and instant hot water from a single unit. It features a quiet, modern design, QuickTap to reduce water wasted while waiting for hot water and an A-rated efficiency for lower running costs. The installation package is supplied and fitted by British Gas and includes a Hive Mini programmable thermostat with hub and receiver, horizontal flue, chemical system cleanse, Fernox water treatment, magnetic filter installation, internal condensate connection, filling link and waste disposal. A 5-year warranty is included once the installation and first-year service requirements are met.