We’ve replaced an old 40 year old Glow-worm conventional boiler with a brand new Glow-worm Energy 30c combi – bringing this home’s heating system right up to date. The old flue hole was carefully bricked up using matching bricks so you’d never know there was a big hole there before. We also moved the new boiler to the airing cupboard upstairs, making the setup much neater and more efficient. The system was flushed out, an external filling loop and mechanical shock arrestor were installed, and al