The Glow-worm Energy Regular is a highly reliable and long-lasting gas boiler designed for central heating systems and hot water for a separate cylinder. It requires a hot water storage cylinder and a cold water storage cistern in the loft. This A-rated boiler boasts 89.3% efficiency and an 18kW output, ideal for homes with lower hot water demands. Its compact design saves space, and the modern LCD display provides clear status updates. The Energy boiler offers flexible installation with top or rear flue options and simplifies boiler swaps with an industry-standard DIN layout. The aluminium heat exchanger with large waterways makes it a suitable retrofit solution. Key features include a 7-year manufacturer warranty, high-quality automotive-grade aluminium heat exchanger, ErP modulating Grundfos pump, compact size, and compatibility with current Glow-worm flues. It is supported by Club Energy.