gas boiler repair 2

https://storyquanta.com/s/vvGh4zwadQqhJcGnsEY6g

Our ancient gas boiler started making a banging noise last Tuesday, which was honestly terrifying. I called a local heating engineer who said the heat exchanger was furred up and the pilot light needed adjusting. He spent about two hours flushing the system and replacing a thermocouple. It's been working perfectly since, though I'm already looking into a more efficient model because the gas bills are still brutal, especially with this cold snap we're having.