Glow-worm is a trusted British brand with a heritage spanning over 75 years in the heating business. After becoming one of the first UK manufacturers to develop the condensing boiler, Glow-worm now makes dependable fuel-efficient boilers for every type of central heating system, including combination boilers, heat only boilers and system boilers. The manufacturer received the Best Buy award from the highly prestigious Which? consumer organisation, demonstrating the quality, value for money and performance of its products. All Glow-worm boilers available from Mr Central Heating come with a 2-year warranty backed by Vaillant Group Service for your complete peace of mind.