Price reduction for Greenstar 4000 Gas-fired Condensing Combi Boiler by Worcester Bosch is a highly efficient heating system that runs on NG (Natural Gas). This compact boiler, with a tank capacity of 75-150 litres, is designed for wall mounting and features a white colour with a metal tank lining. With an A+++ energy efficiency rating and top water connection location, this boiler offers excellent performance and energy savings. Made in the United Kingdom, this gas combination boiler is a reliable choice for home heating needs. The installation is just over 3 years old commencing November 2021 running on lpg gas and replaced by an Air Sourced Heat Pump 6 th January 2025. In as new condition.